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TPS62624YFFR

TPS62624YFFR

  • 厂商:

    BURR-BROWN(德州仪器)

  • 封装:

    DSBGA6

  • 描述:

    TPS62624 600-MA, 6-MHZ, VOUT 1.2

  • 数据手册
  • 价格&库存
TPS62624YFFR 数据手册
Sample & Buy Product Folder Support & Community Tools & Software Technical Documents TPS62620, TPS62621, TPS62622 TPS62623, TPS62624, TPS62625 SLVS848D – JULY 2009 – REVISED OCTOBER 2015 TPS6262x 600-mA, 6-MHz High-Efficiency Step-Down Converter In Chip Scale Packaging 1 Features 3 Description • • • • • • • • • • The TPS6262x device family provides high-frequency synchronous step-down DC/DC converters optimized for battery-powered portable applications. Intended for low-power applications, the TPS6262x devices support up to 600 mA load current, and allow the use of low cost chip inductor and capacitors. 1 • • • • • Wide Input Voltage Range from 2.3 V to 5.5 V 6 MHz Regulated Frequency Operation 90% Efficiency at 6 MHz Operation 31 μA Quiescent Current Best in Class Load and Line Transient ±2% Total DC Voltage Accuracy Automatic PFM/PWM Mode Switching Low Ripple Light-Load PFM Mode Internal Soft Start, 120-μs Start-Up Time Integrated Active Power-Down Sequencing (TPS62624 only) Current Overload and Thermal Shutdown Protection Three Surface-Mount External Components Required (One MLCC Inductor, Two Ceramic Capacitors) Complete Sub 1-mm Component Profile Solution Total Solution Size < 12 mm2 Available in a 6-Pin NanoFree™ (WCSP) Regular and Ultra-Thin Packaging 2 Applications • • • • Mobile Phones, Smartphones WLAN, GPS and Bluetooth™ Applications DTV Tuner Applications DC/DC Micro Modules spacer With a wide input voltage range of 2.3 V to 5.5 V, the devices support applications powered by Li-Ion batteries with extended voltage range. Different fixed voltage output versions are available from 1.2 V to 2.3 V. The TPS6262x devices operate at a regulated 6-MHz switching frequency and enter the power-save mode operation at light load currents to maintain high efficiency over the entire load current range. The pulse frequency modulation (PFM) mode extends the battery life by reducing the quiescent current to 31 μA (typical) during light load and standby operation. For noise-sensitive applications, the device can be forced into fixed frequency pulse width modulation (PWM) mode by pulling the MODE pin high. The TPS6262x devices operate over a free air temperature range of –40°C to 85°C. They are available in a 6-pin chip-scale package (WCSP). Device Information(1) PART NUMBER TPS6262x PACKAGE DSBGA (6) BODY SIZE (NOM) 1.30 mm × 0.96 mm (1) For all available packages, see the orderable addendum at the end of the datasheet. space VIN CI 2.2 μF EN GND L SW FB MODE 100 200 VI = 3.6 V, 90 V = 1.8 V O 0.47 μH 180 160 80 CO 4.7 μF 70 Efficiency - % TPS6262x Efficiency vs. Load Current VOUT 1.8 V @ 600mA 60 Efficiency PFM/PWM Operation 120 100 50 80 40 30 140 Power Loss PFM/PWM Operation 60 20 40 10 20 0 0.1 1 10 100 IO - Load Current - mA Power Loss - mW Typical Application Schematic VBAT 2.3 V .. 5.5 V 0 1000 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. TPS62620, TPS62621, TPS62622 TPS62623, TPS62624, TPS62625 SLVS848D – JULY 2009 – REVISED OCTOBER 2015 www.ti.com Table of Contents 1 2 3 4 5 6 7 8 Features .................................................................. Applications ........................................................... Description ............................................................. Revision History..................................................... Device Comparison Table..................................... Pin Configuration and Functions ......................... Specifications......................................................... 1 1 1 2 3 3 4 7.1 7.2 7.3 7.4 7.5 7.6 4 4 4 4 5 6 Absolute Maximum Ratings ...................................... ESD Ratings.............................................................. Recommended Operating Conditions....................... Thermal Information .................................................. Electrical Characteristics........................................... Typical Characteristics .............................................. Detailed Description .............................................. 7 8.1 8.2 8.3 8.4 Overview ................................................................... Functional Block Diagram ......................................... Feature Description................................................... Device Functional Modes.......................................... 7 7 8 8 9 Application and Implementation ........................ 10 9.1 Application Information............................................ 10 9.2 Typical Application ................................................. 10 10 Power Supply Recommendations ..................... 19 11 Layout................................................................... 19 11.1 Layout Guidelines ................................................. 19 11.2 Layout Example .................................................... 19 11.3 Thermal Information .............................................. 20 12 Device and Documentation Support ................. 20 12.1 12.2 12.3 12.4 12.5 Related Links ........................................................ Community Resources.......................................... Trademarks ........................................................... Electrostatic Discharge Caution ............................ Glossary ................................................................ 20 20 20 20 21 13 Mechanical, Packaging, and Orderable Information ........................................................... 21 13.1 Package Summary................................................ 21 13.2 Chip Scale Package Dimensions.......................... 21 4 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision C (August 2011) to Revision D Page • Added ESD Ratings table, Thermal Information table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section....................................... 1 • Changed Chip Scale package marking code from YMSS and LLLL, to YMDS and CC...................................................... 21 Changes from Revision B (December 2009) to Revision C • Changed I(SD) specification MAX rating from 1 TO 2.5 in ELEC CHARA table, under SUPPLY CURRENT. ....................... 5 Changes from Revision A (July 2009) to Revision B • 2 Page Page Added YFD package option ................................................................................................................................................. 21 Submit Documentation Feedback Copyright © 2009–2015, Texas Instruments Incorporated TPS62620, TPS62621, TPS62622 TPS62623, TPS62624, TPS62625 www.ti.com SLVS848D – JULY 2009 – REVISED OCTOBER 2015 5 Device Comparison Table PART NUMBER OUTPUT VOLTAGE OUTPUT DISCHARGE FUNCTION PACKAGE MARKING CHIP CODE TPS62620 1.82 V No TPS62621 1.8 V No GH TPS62622 1.5 V No GV TPS62623 1.225 V No TPS62624 1.2 V Yes GX TPS62625 1.2 V No KC GF GE GZ K3 6 Pin Configuration and Functions YFF or YFD Package 6-Pin DSBGA TPS6262x (TOP VIEW) MODE A1 TPS6262x (BOTTOM VIEW) A2 VIN VIN A2 A1 MODE EN B2 B1 SW GND C2 C1 FB SW B1 B2 EN FB C1 C2 GND Pin Functions PIN NAME NO. I/O DESCRIPTION This is the mode selection pin of the device. This pin must not be left floating and must be terminated. MODE A1 IN MODE = Low: The device is operating in regulated frequency pulse width modulation mode (PWM) at high-load currents and in pulse frequency modulation mode (PFM) at light load currents. MODE = High: Low-noise mode enabled, regulated frequency PWM operation forced. VIN A2 IN Power supply input. SW B1 IN/OUT EN B2 IN This is the enable pin of the device. Connecting this pin to ground forces the device into shutdown mode. Pulling this pin to VIN enables the device. This pin must not be left floating and must be terminated. FB C1 IN Output feedback sense input. Connect FB to the converter’s output. GND C2 – Ground pin. This is the switch pin of the converter and is connected to the drain of the internal power MOSFETs. Copyright © 2009–2015, Texas Instruments Incorporated Submit Documentation Feedback 3 TPS62620, TPS62621, TPS62622 TPS62623, TPS62624, TPS62625 SLVS848D – JULY 2009 – REVISED OCTOBER 2015 www.ti.com 7 Specifications 7.1 Absolute Maximum Ratings Over operating free-air temperature range (unless otherwise noted) (1) Voltage at VIN, SW (2) Voltage at FB (2) VIN Voltage at EN, MODE (2) Power dissipation Operating temperature range TJ (max) Maximum operating junction temperature Tstg Storage temperature (2) (3) MAX 7 UNIT -0.3 3.6 -0.3 VIN + 0.3 V Internally limited (3) TA (1) MIN –0.3 -40 –65 85 °C 150 °C 150 °C Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. All voltage values are with respect to network ground terminal. In applications where high power dissipation and/or poor package thermal resistance is present, the maximum ambient temperature may have to be derated. Maximum ambient temperature (TA(max)) is dependent on the maximum operating junction temperature (TJ(max)), the maximum power dissipation of the device in the application (PD(max)), and the junction-to-ambient thermal resistance of the part/package in the application (θJA), as given by the following equation: TA(max) = TJ(max) – (θJA x PD(max)). To achieve optimum performance, it is recommended to operate the device with a maximum junction temperature of 105°C. 7.2 ESD Ratings VALUE V(ESD) (1) (2) Electrostatic discharge Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins (1) ±2000 Charged device model (CDM), per JEDEC specification JESD22-C101, all pins (2) ±1000 UNIT V JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. The human body model is a 100-pF capacitor discharged through a 1.5-kΩ resistor into each pin. JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process. 7.3 Recommended Operating Conditions Over operating free-air temperature range (unless otherwise noted) MIN TYP MAX UNIT Supply voltage, VIN 2.3 5.5 V Operating free air temperature, TA –40 85 °C 150 °C Operating junction temperature, TJ 7.4 Thermal Information TPS626x THERMAL METRIC (1) YFF/YFD (DSBGA) UNIT 6 PINS RθJA Junction-to-ambient thermal resistance 130 °C/W RθJC(top) Junction-to-case (top) thermal resistance 1.2 °C/W RθJB Junction-to-board thermal resistance 22 °C/W ψJT Junction-to-top characterization parameter 5.0 °C/W ψJB Junction-to-board characterization parameter 22.0 °C/W RθJC(bot) Junction-to-case (bottom) thermal resistance N/A °C/W (1) 4 For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953. Submit Documentation Feedback Copyright © 2009–2015, Texas Instruments Incorporated TPS62620, TPS62621, TPS62622 TPS62623, TPS62624, TPS62625 www.ti.com SLVS848D – JULY 2009 – REVISED OCTOBER 2015 7.5 Electrical Characteristics Minimum and maximum values are at VIN = 2.3 V to 5.5 V, VOUT = 1.82 V, EN = 1.82 V, AUTO mode and TA = –40°C to 85°C. Typical values are at VIN = 3.6 V, VOUT = 1.82 V, EN = 1.82 V, AUTO mode and TA = 25°C. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY CURRENT VIN Input voltage range 2.3 IQ Operating quiescent current I(SD) Shutdown current UVLO Undervoltage lockout threshold 5.5 V 55 μA IOUT = 0 mA, device not switching 31 IOUT = 0 mA, PWM mode 7.6 EN = GND 0.2 2.5 μA 2.05 2.1 V mA ENABLE, MODE VIH High-level input voltage VIL Low-level input voltage Ilkg Input leakage current 1.0 V 0.4 V 1 μA Input connected to GND or VIN 0.01 TPS62620 TPS62621 TPS62622 VIN = V(GS) = 3.6 V, PWM mode 270 mΩ VIN = V(GS) = 2.5 V, PWM mode 350 mΩ TPS62623 TPS62624 VIN = V(GS) = 3.6 V, PWM mode 480 mΩ VIN = V(GS) = 2.5 V, PWM mode 640 POWER SWITCH RDS(on) P-channel MOSFET on resistance Ilkg P-channel leakage current, PMOS V(DS) = 5.5 V, –40°C ≤ TJ ≤ 85°C RDS(on) N-channel MOSFET on resistance VIN = V(GS) = 3.6 V, PWM mode 140 VIN = V(GS) = 2.5 V, PWM mode 200 Ilkg N-channel leakage current, NMOS RDIS Discharge resistor for power-down sequence TPS6262x V(DS) = 5.5 V, –40°C ≤ TJ ≤ 85°C P-MOS current limit 2.3 V ≤ VIN ≤ 4.8 V, open loop Input current under short-circuit conditions VOUT shorted to ground mΩ 1 975 Thermal shutdown Thermal shutdown hysteresis μA mΩ mΩ 1 μA 15 50 Ω 1100 1200 mA 19 mA 140 °C 10 °C OSCILLATOR fSW Oscillator frequency TPS6262x IOUT = 0 mA, PWM mode 5.4 6 6.6 MHz 2.3 V ≤ VIN ≤ 4.8 V, 0 mA ≤ IOUT ≤ 600 mA PFM/PWM operation 0.98 × VNOM VNOM 1.03 × VNOM V 2.3 V ≤ VIN ≤ 5.5 V, 0 mA ≤ IOUT ≤ 600 mA PFM/PWM operation 0.98 × VNOM VNOM 1.04 × VNOM V 2.3 V ≤ VIN ≤ 5.5 V, 0 mA ≤ IOUT ≤ 600 mA PWM operation 0.98 × VNOM VNOM 1.02 × VNOM V OUTPUT Regulated DC output voltage VOUT TPS6262x Line regulation VIN = VOUT + 0.5 V (min 2.3 V) to 5.5V, IOUT = 200 mA Load regulation IOUT = 0 mA to 600 mA Feedback input resistance ΔVO Power save mode ripple voltage Start-up time 0.13 –0.0003 %/V %/mA 480 kΩ TPS62620 TPS62621 IOUT = 1 mA 20 mVPP TPS62623 TPS62624 IOUT = 1 mA 24 mVPP TPS62620 IOUT = 0 mA, time from active EN to VOUT 120 μs Copyright © 2009–2015, Texas Instruments Incorporated Submit Documentation Feedback 5 TPS62620, TPS62621, TPS62622 TPS62623, TPS62624, TPS62625 SLVS848D – JULY 2009 – REVISED OCTOBER 2015 www.ti.com 7.6 Typical Characteristics 450 45 rDS(on) - Static Drain-Source On-Resistance - mW 50 TA = 85°C IQ - Quiescent Current - mA 40 TA = 25°C 35 30 25 TA = -40°C 20 15 10 5 0 2.5 2.8 3.1 3.4 3.7 4.0 4.3 4.6 VI - Input Voltage - V 4.9 5.2 425 400 375 TA = 85°C 350 TA = 25°C 325 TA = -40°C 300 275 250 225 200 175 150 125 2.5 2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5 5.5 VI - Input Voltage - V TPS62620 Figure 2. P-Channel RDS(on) vs Input Voltage Figure 1. Quiescent Current vs Input Voltage rDS(on) - Static Drain-Source On-Resistance - mW PWM Mode Operation 300 275 250 225 200 175 TA = 85°C TA = 25°C TA = -40°C 150 125 100 75 50 2.5 2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5 VI - Input Voltage - V TPS62620 PWM Mode Operation Figure 3. N-Channel RDS(on) vs Input Voltage 6 Submit Documentation Feedback Copyright © 2009–2015, Texas Instruments Incorporated TPS62620, TPS62621, TPS62622 TPS62623, TPS62624, TPS62625 www.ti.com SLVS848D – JULY 2009 – REVISED OCTOBER 2015 8 Detailed Description 8.1 Overview The TPS6262x synchronous step-down DC/DC converters typically operate at a regulated 6-MHz frequency pulse width modulation (PWM) mode at moderate to heavy load currents. At light load currents, the TPS6262x converters operate in power-save mode with pulse frequency modulation (PFM). The converters use a unique frequency locked ring oscillating modulator to achieve best-in-class load and line response and allows the use of tiny inductors and small ceramic input and output capacitors. At the beginning of each switching cycle, the P-channel MOSFET switch is turned on and the inductor current ramps up rising the output voltage until the main comparator trips, then the control logic turns off the switch. One key advantage of the non-linear architecture is that there is no traditional feed-back loop. The loop response to change in VOUT is essentially instantaneous, which explains the transient response. The absence of a traditional, high-gain compensated linear loop means that the TPS6262x converters are inherently stable over a range of L and COUT. Although this type of operation normally results in a switching frequency that varies with input voltage and load current, an internal frequency lock loop (FLL) holds the switching frequency constant over a large range of operating conditions. Combined with best in class load and line transient response characteristics, the low quiescent current of the device (ca. 31 μA) allows to maintain high efficiency at light load, while preserving fast transient response for applications requiring tight output regulation. 8.2 Functional Block Diagram MODE VIN Undervoltage Lockout Bias Supply Bandgap EN Soft-Start V REF = 0.8 V Negative Inductor Current Detect Power Save Mode Switching Logic Thermal Shutdown VIN Current Limit Detect Frequency Control R1 FB Gate Driver R2 Anti Shoot-Through VREF SW + GND Copyright © 2009–2015, Texas Instruments Incorporated Submit Documentation Feedback 7 TPS62620, TPS62621, TPS62622 TPS62623, TPS62624, TPS62625 SLVS848D – JULY 2009 – REVISED OCTOBER 2015 www.ti.com 8.3 Feature Description 8.3.1 Mode Selection The MODE pin allows to select the operating mode of the device. Connecting this pin to GND enables the automatic PWM and power-save mode operation. The converter operates in regulated frequency PWM mode at moderate to heavy loads and in the PFM mode during light loads, which maintains high efficiency over a wide load current range. Pulling the MODE pin high forces the converter to operate in the PWM mode even at light load currents. The advantage is that the converter operates with a fixed frequency that allows simple filtering of the switching frequency for noise-sensitive applications. In this mode, the efficiency is lower compared to the power-save mode during light loads. For additional flexibility, it is possible to switch from power-save mode to forced PWM mode during operation. This allows efficient power management by adjusting the operation of the converter to the specific system requirements. 8.3.2 Enable The device starts operation when EN is set high and starts up with the soft start. For proper operation, the EN pin must be terminated and must not be left floating. Pulling the EN pin low forces the device into shutdown, with a shutdown quiescent current of typically 0.1 μA. In this mode, the P- and N-channel MOSFETs are turned off, the internal resistor feedback divider is disconnected, and the entire internal-control circuitry is switched off. 8.3.3 Undervoltage Lockout The undervoltage lockout circuit prevents the device from misoperation at low input voltages. It prevents the converter from turning on the switch or rectifier MOSFET under undefined conditions. The TPS6262x devices have a UVLO threshold set to 2.05 V (typical). Fully functional operation is permitted down to 2.1 V input voltage. 8.3.4 Thermal Shutdown As soon as the junction temperature, TJ, exceeds typically 140°C, the device goes into thermal shutdown. In this mode, the P- and N-channel MOSFETs are turned off. The device continues its operation when the junction temperature again falls below typically 130°C. 8.4 Device Functional Modes 8.4.1 Soft Start The TPS6262x devices have an internal soft-start circuit that limits the inrush current during start-up. This limits input voltage drops when a battery or a high-impedance power source is connected to the input of the converter. The soft-start system progressively increases the on-time from a minimum pulse-width of 35 ns as a function of the output voltage. This mode of operation continues for ca. 100 μs after enable. Should the output voltage not have reached its target value by this time, such as in the case of heavy load, the soft-start transitions to a second mode of operation. The converter then operates in a current limit mode, specifically the P-MOS current limit is set to half the nominal limit, and the N-channel MOSFET remains on until the inductor current has reset. After a further 100 μs, the device ramps up to the full current limit operation if the output voltage has risen above 0.5 V (approximately). Therefore, the start-up time mainly depends on the output capacitor and load current. 8.4.2 Switching Frequency The magnitude of the internal ramp, which is generated from the duty cycle, reduces for duty cycles either set of 50%. Thus, there is less overdrive on the main comparator inputs which tends to slow the conversion down. The intrinsic maximum operating frequency of the converter is about 10 MHz to 12 MHz, which is controlled to circa 6 MHz by a frequency locked loop. 8 Submit Documentation Feedback Copyright © 2009–2015, Texas Instruments Incorporated TPS62620, TPS62621, TPS62622 TPS62623, TPS62624, TPS62625 www.ti.com SLVS848D – JULY 2009 – REVISED OCTOBER 2015 Device Functional Modes (continued) When high or low duty cycles are encountered, the loop runs out of range and the conversion frequency falls below 6 MHz. The tendency is for the converter to operate more towards a "constant inductor peak current" rather than a "constant frequency". In addition to this behavior which is observed at high duty cycles, it is also noted at low duty cycles. When the converter is required to operate towards the 6 MHz nominal at extreme duty cycles, the application can be assisted by decreasing the ratio of inductance (L) to the output capacitor's equivalent serial inductance (ESL). This increases the ESL step seen at the main comparator's feed-back input thus decreasing its propagation delay, hence increasing the switching frequency. 8.4.3 Power-Save Mode If the load current decreases, the converter will enter power save mode operation automatically. During powersave mode the converter operates in discontinuous current (DCM) single-pulse PFM mode, which produces low output ripple compared with other PFM architectures. When in power save mode, the converter resumes its operation when the output voltage trips below the nominal voltage. It ramps up the output voltage with a minimum of one pulse and goes into power-save mode when the inductor current has returned to a zero steady state. The PFM on-time varies inversely proportional to the input voltage and proportional to the output voltage giving the regulated switching frequency when in steady-state. PFM mode is left and PWM operation is entered as the output current can no longer be supported in PFM mode. As a consequence, the DC output voltage is typically positioned ca. 0.5% above the nominal output voltage and the transition between PFM and PWM is seamless. PFM Mode at Light Load PFM Ripple Nominal DC Output Voltage PWM Mode at Heavy Load Figure 4. Operation in PFM Mode and Transfer to PWM Mode 8.4.4 Output Capacitor Discharge (TPS62624 Only) The TPS62624 device can actively discharge the output capacitor when it turns off. The integrated discharge resistor has a typical resistance of 15 Ω. The required time to discharge the output capacitor at the output node depends on load current and the output capacitance value. All the other voltage options do not have the output capacitor discharge function enabled. 8.4.5 Short-Circuit Protection The TPS6262x devices integrate a P-channel MOSFET current limit to protect the device against heavy load or short circuits. When the current in the P-channel MOSFET reaches its current limit, the P-channel MOSFET is turned off and the N-channel MOSFET is turned on. The regulator continues to limit the current on a cycle-bycycle basis. As soon as the output voltage falls below ca. 0.4 V, the converter current limit is reduced to half of the nominal value. Because the short-circuit protection is enabled during start-up, the device does not deliver more than half of its nominal current limit until the output voltage exceeds approximately 0.5 V. This needs to be considered when a load acting as a current sink is connected to the output of the converter. Copyright © 2009–2015, Texas Instruments Incorporated Submit Documentation Feedback 9 TPS62620, TPS62621, TPS62622 TPS62623, TPS62624, TPS62625 SLVS848D – JULY 2009 – REVISED OCTOBER 2015 www.ti.com 9 Application and Implementation NOTE Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality. 9.1 Application Information The TPS6262x device family provides high-frequency synchronous step-down DC/DC converters optimized for battery-powered portable applications. Intended for low-power applications, the TPS6262x devices support up to 600 mA load current, and allow the use of low cost chip inductor and capacitors. 9.2 Typical Application TPS6262x VI CI L VIN SW EN FB VO CO GND MODE Figure 5. TPS6262x Typical Application Schematic 9.2.1 Design Requirements The design guideline provides a component selection to operate the device within the recommended operating conditions. Table 1 shows the list of components for the Application Curves. Table 1. List of Components REFERENCE DESCRIPTION MANUFACTURER L 1 μH CIN 2.2μF, 6.3V, 0402, X5R MURATA GRM155R60J225ME15 COUT 4.7μF, 6.3V, 0402, X5R MURATA GRM155R60J475M MURATA LQM21PN1R0NGR 9.2.2 Detailed Design Procedure 9.2.2.1 Inductor Selection The TPS6262x device family of step-down converters have been optimized to operate with an effective inductance value in the range of 0.3 μH to 1.3 μH and with output capacitors in the range of 4.7 μF to 10 μF. The internal compensation is optimized to operate with an output filter of L = 0.47 μH and COUT = 4.7 μF. Larger or smaller inductor values can be used to optimize the performance of the device for specific operation conditions. For more details, see section Checking Loop Stability. The inductor value affects its peak-to-peak ripple current, the PWM-to-PFM transition point, the output voltage ripple and the efficiency. The selected inductor has to be rated for its DC resistance and saturation current. The inductor ripple current (ΔIL) decreases with higher inductance and increases with higher VIN or VOUT. 10 Submit Documentation Feedback Copyright © 2009–2015, Texas Instruments Incorporated TPS62620, TPS62621, TPS62622 TPS62623, TPS62624, TPS62625 www.ti.com SLVS848D – JULY 2009 – REVISED OCTOBER 2015 DIL = VOUT VIN - VOUT ´ VIN L ´ fSW where: • • • fSW = Switching frequency (6 MHz typical) L = Inductor value ΔIL = Peak-to-peak inductor ripple current DIL(MAX) = IO(MAX) + (1) DIL 2 where: • • ΔIL = Peak-to-peak inductor ripple current IL(MAX) = Maximum inductor current (2) In high-frequency converter applications, the efficiency is essentially affected by the inductor AC resistance (i.e. quality factor) and to a smaller extent by the inductor DCR value. To achieve high efficiency operation, care should be taken in selecting inductors featuring a quality factor above 25 at the switching frequency. Increasing the inductor value produces lower RMS currents, but degrades transient response. For a given physical inductor size, increased inductance usually results in an inductor with lower saturation current. The total losses of the coil consist of both the losses in the DC resistance (R(DC)) and the following frequencydependent components: • The losses in the core material (magnetic hysteresis loss, especially at high switching frequencies) • Additional losses in the conductor from the skin effect (current displacement at high frequencies) • Magnetic field losses of the neighboring windings (proximity effect) • Radiation losses The following inductor series from different suppliers have been used with the TPS6262x converters. Table 2. List Of Inductors (1) MANUFACTURER MURATA DIMENSIONS 2.0 x 1.2 x 1.0 max. height LQM21PNR54MG0 2.0 x 1.2 x 1.0 max. height LQM21PNR47MC0 2.0 x 1.2 x 0.55 max. height LQM21PN1R0MC0 2.0 x 1.2 x 0.55 max. height LQM21PN1R5MC0 2.0 x 1.2 x 0.55 max. height HSLI-201210AG-R47 2.0 x 1.2 x 1.0 max. height HSLI-201210SW-R85 2.0 x 1.2 x 1.0 max. height JSLI-201610AG-R70 2.0 x 1.6 x 1.0 max. height TOKO MDT2012-CX1R0A 2.0 x 1.2 x 1.0 max. height FDK MIPS2012D1R0-X2 2.0 x 1.2 x 1.0 max. height NM2012NR82 2.0 x 1.2 x 1.0 max. height NM20121NR0 2.0 x 1.2 x 1.0 max. height HITACHI METALS TAIYO YUDEN (1) SERIES LQM21PN1R0NGR See the Third-Party Products disclaimer. Copyright © 2009–2015, Texas Instruments Incorporated Submit Documentation Feedback 11 TPS62620, TPS62621, TPS62622 TPS62623, TPS62624, TPS62625 SLVS848D – JULY 2009 – REVISED OCTOBER 2015 www.ti.com 9.2.2.2 Output Capacitor Selection The advanced fast-response voltage mode control scheme of the TPS6262x converters allows the use of tiny ceramic capacitors. Ceramic capacitors with low ESR values have the lowest output voltage ripple and are recommended. For best performance, the device should be operated with a minimum effective output capacitance of 1.6 μF. The output capacitor requires either an X7R or X5R dielectric. Y5V and Z5U dielectric capacitors, aside from their wide variation in capacitance over temperature, become resistive at high frequencies. At nominal load current, the device operates in PWM mode and the overall output voltage ripple is the sum of the voltage step caused by the output capacitor ESL and the ripple current flowing through the output capacitor impedance. At light loads, the output capacitor limits the output ripple voltage and provides holdup during large load transitions. A 4.7 μF capacitor typically provides sufficient bulk capacitance to stabilize the output during large load transitions. The typical output voltage ripple is 1% of the nominal output voltage VOUT. The output voltage ripple during PFM mode operation can be kept very small. The PFM pulse is time controlled, which allows to modify the charge transferred to the output capacitor by the value of the inductor. The resulting PFM output voltage ripple and PFM frequency depend in first order on the size of the output capacitor and the inductor value. The PFM frequency decreases with smaller inductor values and increases with larger ones. Increasing the output capacitor value and the effective inductance will minimize the output ripple voltage. 9.2.2.3 Input Capacitor Selection Because of the nature of the buck converter having a pulsating input current, a low ESR input capacitor is required to prevent large voltage transients that can cause misbehavior of the device or interferences with other circuits in the system. For most applications, a 2.2-μF capacitor is sufficient. Take care when using only ceramic input capacitors. When a ceramic capacitor is used at the input and the power is being supplied through long wires, such as from a wall adapter, a load step at the output can induce ringing at the VIN pin. This ringing can couple to the output and be mistaken as loop instability or could even damage the part. Additional "bulk" capacitance (electrolytic or tantalum) should in this circumstance be placed between CIN and the power source lead to reduce ringing than can occur between the inductance of the power source leads and CIN. 9.2.2.4 Checking Loop Stability The first step of circuit and stability evaluation is to look from a steady-state perspective at the following signals: • Switching node, SW • Inductor current, IL • Output ripple voltage, VOUT(AC) These are the basic signals that need to be measured when evaluating a switching converter. When the switching waveform shows large duty cycle jitter or the output voltage or inductor current shows oscillations, the regulation loop may be unstable. This is often a result of board layout and/or L-C combination. As a next step in the evaluation of the regulation loop, the load transient response is tested. The time between the application of the load transient and the turn on of the P-channel MOSFET, the output capacitor must supply all of the current required by the load. VOUT immediately shifts by an amount equal to ΔI(LOAD) x ESR, where ESR is the effective series resistance of COUT. ΔI(LOAD) begins to charge or discharge COUT generating a feedback error signal used by the regulator to return VOUT to its steady-state value. The results are most easily interpreted when the device operates in PWM mode. During this recovery time, VO can be monitored for settling time, overshoot or ringing that helps judge the converter’s stability. Without any ringing, the loop has usually more than 45° of phase margin. Because the damping factor of the circuitry is directly related to several resistive parameters (e.g., MOSFET RDS(on)) that are temperature dependant, the loop stability analysis has to be done over the input voltage range, load current range, and temperature range. 12 Submit Documentation Feedback Copyright © 2009–2015, Texas Instruments Incorporated TPS62620, TPS62621, TPS62622 TPS62623, TPS62624, TPS62625 www.ti.com SLVS848D – JULY 2009 – REVISED OCTOBER 2015 9.2.3 Application Curves 100 100 VI = 2.7 V PFM/PWM Operation 90 80 80 VI = 3.6 V PFM/PWM Operation 60 70 VI = 4.2 V PFM/PWM Operation 50 VI = 3.6 V Forced PWM Operation 40 Efficiency - % Efficiency - % 70 50 VI = 4.2 V PFM/PWM Operation 40 30 20 20 10 10 VI = 3.6 V Forced PWM Operation 0 0 1 10 100 IO - Load Current - mA 1000 VOUT = 1.82 V 0.1 91 90 89 88 87 Efficiency - % 86 85 84 83 L = muRata LQM21PN1R0 82 L = muRata LQM21PN0R54 79 78 77 76 100 10 IO - Load Current - mA VOUT = 1.82 V VIN = 3.6 V 1000 PFM/PWM Operation Figure 8. Efficiency vs Load Current, VOUT = 1.82 V, PWM/PFM Operation 88 87 86 85 84 83 82 81 80 79 78 L = muRata LQM21PN1R0 L = muRata LQM21PN0R54 1 28 VO - Peak-to-Peak Output Ripple Voltage - mV 30 94 92 IO = 300 mA 90 88 86 84 IO = 100 mA 82 80 IO = 1 mA 76 74 72 70 2.3 2.7 VOUT = 1.82 V 3.1 3.5 3.9 4.3 4.7 VI - Input Voltage - V 5.1 5.5 PFM/PWM Operation Figure 10. Efficiency vs Input Voltage, VOUT = 1.82 V, PWM/PFM Operation Copyright © 2009–2015, Texas Instruments Incorporated VIN = 3.6 V 1000 PFM/PWM Operation Figure 9. Efficiency vs Load Current, VOUT = 1.2 V, PWM/PFM Operation 98 96 10 100 IO - Load Current - mA VOUT = 1.2 V 100 78 1000 L = Aircoil (0.5 mH, DCR = 20 mW) 77 76 75 74 73 72 71 81 1 10 100 IO - Load Current - mA Figure 7. Efficiency vs Load Current, VOUT = 1.2 V L = Aircoil (0.5 mH, DCR = 20 mW) 80 1 VOUT = 1.2 V Figure 6. Efficiency vs Load Current, VOUT = 1.82 V Efficiency - % VI = 3.6 V PFM/PWM Operation 60 30 0.1 Efficiency - % VI = 2.7 V PFM/PWM Operation 90 26 VI = 4.8 V 24 22 20 VI = 3.6 V 18 16 14 12 VI = 2.5 V 10 8 6 4 2 0 0 50 100 150 200 250 300 350 400 450 500 550 600 IO - Load Current - mA VOUT = 1.82 V Figure 11. Peak-To-Peak Output Ripple Voltage vs Load Current, VOUT = 1.82 V Submit Documentation Feedback 13 TPS62620, TPS62621, TPS62622 TPS62623, TPS62624, TPS62625 VI = 2.5 V 50 100 150 200 250 300 350 400 450 500 550 600 IO - Load Current - mA VOUT = 1.2 V t - Time - 5 µs/div 2.7 to 3.3 V Line Step 0 to 150 mA Load Step t - Time - 2 ms/div t - Time - 5 ms/div VIN = 3.6 V MODE = Low Figure 14. Combined Line/Load Transient Response, VOUT = 1.82 V, VIN = 3.6 V IL - 200 mA/div VO - 20 mV/div - 1.82 V Offset 50 to 350 mA Load Step VOUT = 1.82 V VIN = 3.6 V 50 to 350 mA Load Step t - Time - 5 µs/div MODE = Low Figure 16. Load Transient Response in PFM/PWM Operation, VOUT = 1.82 V, VIN = 3.6 V Submit Documentation Feedback MODE = Low Figure 15. Load Transient Response in PFM/PWM Operation, VOUT = 1.82 V, VIN = 3.6 V t - Time - 5 µs/div VOUT = 1.82 V VIN = 3.6 V VO - 20 mV/div - 1.82 V Offset VOUT = 1.82 V 14 MODE = Low VO - 10 mV/div - 1.82 V Offset IO - 200 mA/div 50 to 350 mA Load Step VIN = 3.6 V Figure 13. Combined Line/Load Transient Response, VOUT = 1.82 V, VIN = 3.6 V IO - 100 mA/div VI - 500 mV/div - 2.7 V Offset VO - 20 mV/div - 1.82 V Offset 3.3 to 3.9 V Line Step VOUT = 1.82 V Figure 12. Peak-To-Peak Output Ripple Voltage vs Load Current, VOUT = 1.2 V IO - 200 mA/div 50 to 350 mA Load Step IO - 200 mA/div VI = 3.6 V VI - 500 mV/div - 3.3 V Offset V - 20 mV/div - 1.82 V Offset O VI = 4.8 V IO - 200 mA/div 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 0 www.ti.com IL - 200 mA/div VO - Peak-to-Peak Output ripple Voltage - mV SLVS848D – JULY 2009 – REVISED OCTOBER 2015 VOUT = 1.82 V VIN = 2.7 V MODE = Low Figure 17. Load Transient Response in PFM/PWM Operation, VOUT = 1.82 V, VIN = 2.7 V Copyright © 2009–2015, Texas Instruments Incorporated TPS62620, TPS62621, TPS62622 TPS62623, TPS62624, TPS62625 t - Time - 5 µs/div t - Time - 5 µs/div MODE = Low VOUT = 1.82 V VIN = 3.6 V MODE = Low 150 to 500 mA Load Step IL - 200 mA/div IL - 200 mA/div 150 to 500 mA Load Step t - Time - 5 µs/div t - Time - 5 µs/div MODE = Low VOUT = 1.82 V VIN = 4.8 V MODE = Low 5 to 200 mA Load Step IL - 200 mA/div IL - 200 mA/div 50 to 350 mA Load Step t - Time - 5 µs/div t - Time - 5 µs/div VOUT = 1.2 V VIN = 3.6 V MODE = Low Figure 22. Load Transient Response in PFM/PWM Operation, VOUT = 1.2 V, VIN = 3.6 V Copyright © 2009–2015, Texas Instruments Incorporated VO - 20 mV/div - 1.2 V Offset Figure 21. Load Transient Response in PFM/PWM Operation, VOUT = 1.82 V, VIN = 4.8 V VO - 20 mV/div - 1.2 V Offset Figure 20. Load Transient Response in PFM/PWM Operation, VOUT = 1.82 V, VIN = 2.7 V IO - 200 mA/div VIN = 2.7 V IO - 200 mA/div VOUT = 1.82 V VO - 20 mV/div - 1.82 V Offset Figure 19. Load Transient Response in PFM/PWM Operation, VOUT = 1.82 V, VIN = 3.6 V VO - 20 mV/div - 1.82 V Offset Figure 18. Load Transient Response in PFM/PWM Operation, VOUT = 1.82 V, VIN = 4.8 V IO - 500 mA/div VIN = 4.8 V IO - 500 mA/div VOUT = 1.82 V VO - 20 mV/div - 1.82 V Offset IO - 500 mA/div 150 to 500 mA Load Step IL - 200 mA/div 50 to 350 mA Load Step VO - 20 mV/div - 1.82 V Offset SLVS848D – JULY 2009 – REVISED OCTOBER 2015 IL - 200 mA/div IO - 200 mA/div www.ti.com VOUT = 1.2 V VIN = 3.6 V MODE = Low Figure 23. Load Transient Response in PFM/PWM Operation, VOUT = 1.2 V, VIN = 3.6 V Submit Documentation Feedback 15 TPS62620, TPS62621, TPS62622 TPS62623, TPS62624, TPS62625 10 to 350 mA Load Sweep t - Time - 5 µs/div t - Time - 10 µs/div VIN = 3.6 V MODE = Low IL - 200 mA/div IO - 200 mA/div VO - 20 mV/div - 1.2 V Offset Figure 24. Load Transient Response in PFM/PWM Operation, VOUT = 1.2 V, VIN = 3.6 V 10 to 375 mA Load Sweep VIN = 3.6 V VIN = 3.6 V MODE = Low Figure 25. AC Load Transient Response, VOUT = 1.82 V, VIN = 3.6 V 1.857 VI = 4.8 V, PFM/PWM Operation VI = 3.6 V, PFM/PWM Operation 1.839 1.820 VI = 3.6 V, PWM Operation VI = 2.5 V, PFM/PWM Operation 1.802 1.784 0.1 t - Time - 10 µs/div VOUT = 1.2 V VOUT = 1.82 V VO - DC Output Voltage - V VOUT = 1.2 V VO - 20 mV/div - 1.82 V Offset IL - 200 mA/div 200 to 600 mA Load Step IL - 200 mA/div IO - 200 mA/div www.ti.com VO - 20 mV/div - 1.2 V Offset IO - 500 mA/div SLVS848D – JULY 2009 – REVISED OCTOBER 2015 1 MODE = Low 10 100 IO - Load Current - mA VOUT = 1.82 V 1000 PFM/PWM Operation Figure 27. DC Output Voltage vs Load Current, VOUT = 1.82 V Figure 26. AC Load Transient Response, VOUT = 1.2 V, VIN = 3.6 V 220 1.224 Always PWM 200 1.212 1.2 VI = 3.6 V, PWM Operation 160 140 PFM to PWM Mode Change The Switching Mode Changes at These Borders 120 100 80 60 VI = 2.5 V, PFM/PWM Operation 1.188 180 IO - Load Current - mA VO - DC Output Voltage - V VI = 4.8 V, PFM/PWM Operation VI = 3.6 V, PFM/PWM Operation 40 PWM to PFM Mode Change Always PFM 20 1.176 0.1 1 10 100 IO - Load Current - mA VOUT = 1.2 V 1000 PFM/PWM Operation Figure 28. DC Output Voltage vs Load Current, VOUT = 1.2 V 16 Submit Documentation Feedback 0 2.5 2.8 VOUT = 1.82 V 3.1 3.4 3.7 4.0 4.3 4.6 VI - Input Voltage - V 4.9 5.2 5.5 Mode Change Figure 29. PFM/PWM Boundaries, VOUT = 1.82 V Copyright © 2009–2015, Texas Instruments Incorporated TPS62620, TPS62621, TPS62622 TPS62623, TPS62624, TPS62625 www.ti.com SLVS848D – JULY 2009 – REVISED OCTOBER 2015 6.5 260 Always PWM 240 6 IO = 0 mA IO = 600 mA IO = 500 mA 220 fs - Switching Frequency - MHz PFM to PWM Mode Change 180 160 The Switching Mode Changes at These Borders 140 120 100 80 60 0 2.5 2.8 Always PFM 4.5 IO = 50 mA 4 3.5 3 2.5 2 1.5 3.1 3.4 3.7 4.0 4.3 4.6 VI - Input Voltage - V 4.9 VOUT = 1.2 V 5.2 2.5 2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5 5.5 VI - Input Voltage - V Mode Change IL - 200 mA/div SW Node - 2 V/div VO - 10 mV/div - 1.82 V Offset Figure 30. PFM/PWM Boundaries, VOUT = 1.2 V VOUT = 1.82 V Figure 31. PWM Switching Frequency vs Input Voltage SW Node - 2 V/div 20 PWM to PFM Mode Change IO = 400 mA IO = 300 mA IO = 150 mA 5 VO - 20 mV/div - 1.82 V Offset 40 5.5 IL - 200 mA/div IO - Load Current - mA 200 t - Time - 250 ns/div t - Time - 50 ns/div VIN = 3.6 V IOUT = 100 mA MODE = High VOUT = 1.82 V IL - 200 mA/div MODE - 2 V/div IL - 200 mA/div t - Time - 1 µs/div t - Time - 1 µs/div VOUT = 1.82 V VIN = 3.6 V IOUT = 40 mA Figure 34. Mode Change Response Copyright © 2009–2015, Texas Instruments Incorporated IOUT = 40 mA MODE = Low Figure 33. Power-Save Mode Operation VO - 20 mV/div - 1.82 V Offset MODE - 2 V/div Figure 32. PWM Operation VIN = 3.6 V VO - 20 mV/div - 1.82 V VOUT = 1.82 V VOUT = 1.82 V VIN = 3.6 V IOUT = 40 mA Figure 35. Mode Change Response Submit Documentation Feedback 17 TPS62620, TPS62621, TPS62622 TPS62623, TPS62624, TPS62625 EN - 2 V/div www.ti.com IL - 200 mA/div IL - 500 mA/div 300 to 1300 mA Load Sweep VO - 1 V/div VO - 500 mV/div - 1.82 V Offset IO - 1 A/div SLVS848D – JULY 2009 – REVISED OCTOBER 2015 t - Time - 2 µs/div VOUT = 1.82 V t - Time - 20 µs/div VIN = 3.6 V IOUT = 40 mA MODE = Low VOUT = 1.82 V TPS62620 Figure 36. Over-Current Fault Operation VIN = 3.6 V IOUT = 0 mA MODE = Low VO - 500 mV/div EN - 2 V/div Figure 37. Start-Up t - Time - 50 µs/div VOUT = 1.2 V TPS62624 VIN = 3.6 V IOUT = 0 mA MODE = Low Figure 38. Shutdown 18 Submit Documentation Feedback Copyright © 2009–2015, Texas Instruments Incorporated TPS62620, TPS62621, TPS62622 TPS62623, TPS62624, TPS62625 www.ti.com SLVS848D – JULY 2009 – REVISED OCTOBER 2015 10 Power Supply Recommendations The TPS6262x device family has no special requirements for its input power supply. The input power supply' s output current needs to be rated according to the supply voltage, output voltage and output current of the TPS6262x. 11 Layout 11.1 Layout Guidelines As for all switching power supplies, the layout is an important step in the design. High-speed operation of the TPS6262x devices demand careful attention to PCB layout. Care must be taken in board layout to get the specified performance. If the layout is not carefully done, the regulator could show poor line and/or load regulation, stability and switching frequency issues as well as EMI problems. It is critical to provide a low inductance, impedance ground path. Therefore, use wide and short traces for the main current paths. The input capacitor should be placed as close as possible to the IC pins as well as the inductor and output capacitor. In order to get an optimum ESL step, the output voltage feedback point (FB) should be taken in the output capacitor path, approximately 1 mm away from it. The feed-back line should be routed away from noisy components and traces (e.g. SW line). 11.2 Layout Example MODE CI L VIN ENABLE CO GND VOUT Figure 39. Suggested Layout (Top) Copyright © 2009–2015, Texas Instruments Incorporated Submit Documentation Feedback 19 TPS62620, TPS62621, TPS62622 TPS62623, TPS62624, TPS62625 SLVS848D – JULY 2009 – REVISED OCTOBER 2015 www.ti.com 11.3 Thermal Information Implementation of integrated circuits in low-profile and fine-pitch surface-mount packages typically requires special attention to power dissipation. Many system-dependant issues such as thermal coupling, airflow, added heat sinks, and convection surfaces, and the presence of other heat-generating components, affect the powerdissipation limits of a given component. Three • • • basic approaches for enhancing thermal performance are listed below: Improving the power dissipation capability of the PCB design Improving the thermal coupling of the component to the PCB Introducing airflow into the system The maximum recommended junction temperature (TJ) of the TPS6262x devices is 105°C. The thermal resistance of the 6-pin CSP package (YFF-6) is RθJA = 125°C/W. Regulator operation is specified to a maximum steady-state ambient temperature TA of 85°C. Therefore, the maximum power dissipation is about 160 mW. TJ(MAX) - TA 105°C - 85°C PD(MAX) = = = 160 mW RqJA 125°C/W (3) 12 Device and Documentation Support 12.1 Related Links The table below lists quick access links. Categories include technical documents, support and community resources, tools and software, and quick access to sample or buy. Table 3. Related Links PARTS PRODUCT FOLDER SAMPLE & BUY TECHNICAL DOCUMENTS TOOLS & SOFTWARE SUPPORT & COMMUNITY TPS62620 Click here Click here Click here Click here Click here TPS62621 Click here Click here Click here Click here Click here TPS62622 Click here Click here Click here Click here Click here TPS62623 Click here Click here Click here Click here Click here TPS62624 Click here Click here Click here Click here Click here TPS62625 Click here Click here Click here Click here Click here 12.2 Community Resources The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of Use. TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help solve problems with fellow engineers. Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and contact information for technical support. 12.3 Trademarks NanoFree, E2E are trademarks of Texas Instruments. Bluetooth is a trademark of Bluetooth SIG, Inc. 12.4 Electrostatic Discharge Caution These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. 20 Submit Documentation Feedback Copyright © 2009–2015, Texas Instruments Incorporated TPS62620, TPS62621, TPS62622 TPS62623, TPS62624, TPS62625 www.ti.com SLVS848D – JULY 2009 – REVISED OCTOBER 2015 12.5 Glossary SLYZ022 — TI Glossary. This glossary lists and explains terms, acronyms, and definitions. 13 Mechanical, Packaging, and Orderable Information The following pages include mechanical, packaging, and orderable information. This information is the most current data available for the designated devices. This data is subject to change without notice and revision of this document. For browser-based versions of this data sheet, refer to the left-hand navigation. 13.1 Package Summary CHIP SCALE PACKAGE (BOTTOM VIEW) D A2 A1 B2 B1 C2 C1 CHIP SCALE PACKAGE (TOP VIEW) YMDS CC A1 Code: E • YM — Year Month date code • D — Day of Laser Mark • S — Assembly site code • CC — Chip code 13.2 Chip Scale Package Dimensions The TPS6262x devices are available in an 6-bump chip scale package (YFF, NanoFree™). The package dimensions are given as: • D = 1.30 ±0.03 mm • E = 0.926 ±0.03 mm Copyright © 2009–2015, Texas Instruments Incorporated Submit Documentation Feedback 21 PACKAGE OPTION ADDENDUM www.ti.com 20-Aug-2021 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) (4/5) (6) TPS62620YFDR ACTIVE DSBGA YFD 6 3000 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 85 GE TPS62620YFDT ACTIVE DSBGA YFD 6 250 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 85 GE TPS62620YFFR ACTIVE DSBGA YFF 6 3000 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 85 GF TPS62620YFFT ACTIVE DSBGA YFF 6 250 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 85 GF TPS62621YFFR ACTIVE DSBGA YFF 6 3000 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 85 GH TPS62621YFFT ACTIVE DSBGA YFF 6 250 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 85 GH TPS62622YFFR ACTIVE DSBGA YFF 6 3000 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 85 GV TPS62622YFFT ACTIVE DSBGA YFF 6 250 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 85 GV TPS62623YFDR ACTIVE DSBGA YFD 6 3000 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 85 K3 TPS62623YFDT ACTIVE DSBGA YFD 6 250 RoHS & Green SAC396 Level-1-260C-UNLIM -40 to 85 K3 TPS62623YFFR ACTIVE DSBGA YFF 6 3000 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 85 GZ TPS62623YFFT ACTIVE DSBGA YFF 6 250 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 85 GZ TPS62624YFFR ACTIVE DSBGA YFF 6 3000 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 85 GX TPS62624YFFT ACTIVE DSBGA YFF 6 250 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 85 GX TPS62625YFFR ACTIVE DSBGA YFF 6 3000 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 85 KC TPS62625YFFT ACTIVE DSBGA YFF 6 250 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 85 KC (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. Addendum-Page 1 Samples PACKAGE OPTION ADDENDUM www.ti.com 20-Aug-2021 (2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of
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