TPS72116DBVR

TPS72101,, TPS72115 TPS72116, TPS72118         www.ti.com SLVS352C – DECEMBER 2001 – REVISED MARCH 2006 LOW INPUT VOLTAGE, CAP FREE 150-mA LOW-DROPOUT LINEAR REGULATORS FEATURES • • • • • • • • • DESCRIPTION 150-mA LDO Available in 1.5-V, 1.6-V, 1.8-V Fixed-Output and Adjustable (1.2-V to 2.5-V) Versions Low Input Voltage Requirement (Down to 1.8 V) Small Output Capacitor, 0.1-µF Dropout Voltage Typically 200 mV at 150 mA Less Than 1 µA Quiescent Current in Shutdown Mode Thermal Protection Over Current Limitation 5-Pin SOT-23 (DBV) Package APPLICATIONS • • • • • • • • • Portable Communication Devices Battery Powered Equipment PCMCIA Cards Personal Digital Assistants Modems Bar Code Scanners Backup Power Supplies SMPS Post Regulation Internet Audio Similar LDO regulators require 1-µF or larger output capacitors for stability. However, this regulator uses an internal compensation scheme that stabilizes the feedback loop over the full range of input voltages and load currents with output capacitances as low as 0.1-µF. Ceramic capacitors of this size are relatively inexpensive and available in small footprints. This family of regulators is particularly suited as a portable power supply solution due to its minimal board space requirement and 1.8-V minimum input voltage. Being able to use two off-the-shelf AAA batteries makes system design easier and also reduces component cost. Moreover, the solution will be more efficient than if a regulator with a higher input voltage is used. DBV PACKAGE (TOP VIEW) IN 1 GND 2 EN 3 1.8 V 5 OUT 4 NC/FB TPS72115 IN EN The TPS721xx family of LDO regulators is available in fixed voltage options that are commonly used to power the latest DSPs and microcontrollers with an adjustable option ranging from 1.22 V to 2.5 V. These regulators can be used in a wide variety of applications ranging from portable, battery-powered equipment to PC peripherals. The family features operation over a wide range of input voltages (1.8 V to 5.5 V) and low dropout voltage (150 mV at full load). Therefore, compared to many other regulators that require 2.5-V or higher input voltages for operation, these regulators can be operated directly from two AAA batteries. Also, the typical quiescent current (ground pin current) is low, starting at 85 µA during normal operation and 1 µA in shutdown mode. These regulators can be operated very efficiently and, in a battery-powered application, help extend the longevity of the device. 1.5 V OUT GND 0.1 µF 0.1 µF Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2001–2006, Texas Instruments Incorporated TPS72101,, TPS72115 TPS72116, TPS72118 www.ti.com SLVS352C – DECEMBER 2001 – REVISED MARCH 2006 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. ORDERING INFORMATION TJ VOLTAGE PACKAGE SYMBOL TPS72101DBVT (1) TPS72101DBVR (2) PEKI 1.5 V TPS72115DBVT (1) TPS72115DBVR (2) PEII TPS72116DBVT (1) TPS72116DBVR (2) PHFI TPS72118DBVT (1) TPS72118DBVR (2) PEJI -40°C to 125°C SOT-23 (DBV) 1.6 V 1.8 V (1) (2) PART NUMBER Adjustable The DBVT indicates tape and reel of 250 parts. The DBVR indicates tape and reel of 3000 parts. ABSOLUTE MAXIMUM RATINGS over operating free-air temperature range unless otherwise noted (1) (2) TPS72101, TPS72115, TPS72116, TPS72118 Voltage range at IN -0.3 V to 7 V Voltage range at EN -0.3 V to 7 V Voltage on OUT, FB, NC -0.3 V to VI + 0.3 V Peak output current Internally limited ESD rating, HBM 3 kV Continuous total power dissipation See Dissipation Rating Table Operating junction temperature range, TJ -40°C to 150°C Storage temperature range, Tstg -65°C to 150°C (1) (2) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.All voltage values are with respect to network ground terminal. All voltage values are with respect to network ground terminal. PACKAGE DISSIPATION RATING BOARD PACKAGE RΘJC RΘJA DERATING FACTOR ABOVE TA = 25°C TA ≤ 25°C POWER RATING TA = 70°C POWER RATING TA = 85°C POWER RATING Low-K (1) DBV 65.8 °C/W 259 °C/W 3.9 mW/°C 386 mW 212 mW 154 mW High-K (2) DBV 65.8 °C/W 180 °C/W 5.6 mW/°C 555 mW 305 mW 222 mW (1) (2) 2 The JEDEC Low-K (1s) board design used to derive this data was a 3 inch x 3 inch, two-layer board with 2 ounce copper traces on top of the board. The JEDEC High-K (2s2p) board design used to derive this data was a 3 inch x 3 inch, multilayer board with 1 ounce internal power and ground planes and 2 ounce copper traces on top and bottom of the board. Submit Documentation Feedback TPS72101,, TPS72115 TPS72116, TPS72118 www.ti.com SLVS352C – DECEMBER 2001 – REVISED MARCH 2006 ELECTRICAL CHARACTERISTICS over recommended operating junction temperature range VIN = VOUT(Nom) + 1 V, IOUT = 1 mA, EN = VIN, COUT = 1 µF (unless otherwise noted) PARAMETER TEST CONDITIONS VIN Input voltage (1) VOUT Output voltage range IOUT Continuous output current TJ Operating junction temperature TPS72101 TPS72101 0 µA < IOUT < 150 mA (1) TPS72115 VOUT Output voltage MIN TPS72116 TPS72118 1.8 V ≤ VOUT ≤ 2.5 V 2.5 V 0 150 mA -40 125 °C 0.97 VO 1.03 VO 2.5 V ≤ VIN ≤ 5.5 V 1.455 Quiescent current (GND current) 1.545 1.6 2.6 V ≤ VIN ≤ 5.5 V 1.552 2.8 V ≤ VIN ≤ 5.5 V 1.746 1.854 85 120 IOUT = 150 mA TJ = 25°C 570 TJ = 25°C 0.01 IOUT = 150 mA EN < 0.5 V Standby current 1 BW = 200 Hz to 100 kHz, TJ Co = 1 µF = 25°C Vn Output noise voltage Vref Reference voltage TJ = 25°C Ripple rejection f = 100 Hz, Co = 10 µF, IOUT TJ = 25°C; See = 150 mA Current limit See Output voltage line regulation (∆VOUT/VOUT) (1) VO + 1 V < VIN≤ 2.5 V PSRR Output voltage load regulation (1) (2) TPS72118 0 < IOUT < 150 mA TJ= 25°C µV 1.225 V 48 dB 525 0.03 0.09 0.1 TJ = 25°C 0.5 EN high level input 1.4 VIL EN low level input -0.2 II EN input current VDO Dropout voltage (3) In Feedback input current -0.01 EN = IN -0.01 TJ = 25°C TPS72101 IOUT = 150 mA 1.2 V ≤ VO ≤ 5.2 V 240 1 Thermal shutdown hysteresis %/V V µA 150 TPS72101 Thermal shutdown temperature mA mV 0.4 EN = 0 V TPS72118 IOUT = 150 mA µA 90 175 VIH (1) (2) (3) µA 850 EN < 0.5 V TPS72115 V 1.648 1.8 TJ = 25°C I(Q) V 1.5 TJ = 25°C 0 µA < IOUT < 150 mA UNIT 1.225 TJ = 25°C 0 µA < IOUT < 150 mA MAX 5.5 TJ = 25°C 0 µA < IOUT < 150 mA TYP 1.8 mV µA 170 °C 20 °C Minimum IN operating voltage is 1.8 V or VOUT + VDO, whichever is greater. Test condition includes output voltage VO = 1 V and pulse duration = 10 mS. Dropout voltage is defined as the differential voltage between VO and VI when VO drops 100 mV below the value measured with VIN = VOUT+ VDO. Submit Documentation Feedback 3 TPS72101,, TPS72115 TPS72116, TPS72118 www.ti.com SLVS352C – DECEMBER 2001 – REVISED MARCH 2006 TPS72101 OUT IN EN Current Limit / Thermal Protection VREF 1.225V FB GND Figure 1. FUNCTIONAL BLOCK DIAGRAM—ADJUSTABLE VERSION TPS72115/16/18 OUT IN EN Current Limit / Thermal Protection VREF 1.225V GND NC(A) A. This pin must be left floating and not connected to GND. Figure 2. FUNCTIONAL BLOCK DIAGRAM—FIXED VERSION Terminal Functions TERMINAL NAME DESCRIPTION NO. GND 2 Ground EN 3 Enable input IN 1 Input supply voltage NC/FB 4 NC = Not connected (see (A)); FB = Feedback (adjustable option TPS72101) OUT 5 Regulated output voltage 4 Submit Documentation Feedback TPS72101,, TPS72115 TPS72116, TPS72118 www.ti.com SLVS352C – DECEMBER 2001 – REVISED MARCH 2006 TYPICAL CHARACTERISTICS TPS72118 OUTPUT VOLTAGE vs OUTPUT CURRENT TPS72118 OUTPUT VOLTAGE vs JUNCTION TEMPERATURE 1.8040 VI = 2.8 V Co = 1 µF TJ = 25° C 1.8020 V O − Output Voltage − V 1.8000 1.7999 1.7998 1.7997 1.7996 30 60 90 120 IO − Output Current − mA IO = 150 mA 1.7960 500 400 300 1.7940 200 1.7920 100 IO = 1 mA 0 −40 −25 −10 5 20 35 50 65 80 95 110 125 TJ − Junction Temperature − °C Figure 5. TPS72118 GROUND CURRENT vs OUTPUT CURRENT TPS72118 OUTPUT SPECTRAL NOISE DENSITY vs FREQUENCY TPS72118 OUTPUT IMPEDANCE vs FREQUENCY Hz 400 300 TJ = 25° C 200 TJ = −40° C 100 30 60 90 120 IO − Output Current − mA Figure 6. 1k 2.5 VI = 2.8 V Co = 1 µF µ V/ TJ = 125° C Output Spectral Noise Density − Ground Current − µ A 1.7980 IO = 150 mA Figure 4. VI = 2.8 V Co = 1 µF 0 IO = 1 mA VI = 2.8 V Co = 1 µF Figure 3. 500 0 1.8000 1.7900 −40 −25 −10 5 20 35 50 65 80 95 110 125 TJ − Junction Temperature − °C 150 700 600 600 150 2 1.5 VI = 2.8 V Co = 1 µF 100 Output Impedance − Ω V O − Output Voltage − V 1.8001 700 VI = 2.8 V Co = 1 µF Ground Current − µ A 1.8002 1.7995 0 TPS72118 GROUND CURRENT vs JUNCTION TEMPERATURE IO = 150 mA 1 10 IO = 1 mA 1 0.1 IO = 150 mA 0.5 0.01 IO = 1 mA 0 100 0.001 1k 10 k f − Frequency − Hz Figure 7. Submit Documentation Feedback 100 k 1 10 100 1 k 10 k 100 k 1 M 10 M f − Frequency − Hz Figure 8. 5 TPS72101,, TPS72115 TPS72116, TPS72118 www.ti.com SLVS352C – DECEMBER 2001 – REVISED MARCH 2006 TYPICAL CHARACTERISTICS (continued) TPS72118 DROPOUT VOLTAGE vs JUNCTION TEMPERATURE TPS72118 POWER SUPPLY RIPPLE REJECTION vs FREQUENCY IO = 150 mA 150 100 50 IO = 10 mA 0 −40 −25 −10 5 VI = 2.8 V Co = 1 µF IO = 150 mA 60 50 40 20 10 0 20 35 50 65 80 95 110 125 1 10 100 1k 10 k 100 k 1 M 0 0 50 100 150 200 200 300 350 400 450 500 t − Time − µs POWER UP / POWER DOWN 6 VI = 2.8 V Co = 1 µF 100 5 Power Up / Power Down − V ∆ V O − Change In Output Voltage − mV TPS72118 LOAD TRANSIENT RESPONSE 0 −100 dV I 1 dt VO
0.4 V µs dI O 0.1A
µs dt 150 0 100 -1 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 t − Time − ms VI 4 3 2 VO 1 0 Co = 1 µF Ci = 1 µF RL = 12 Ω 50 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 0 1 10 20 30 40 50 60 70 80 90 100 t − Time − ms t − Time − ms Figure 12. Figure 13. Figure 14. DC DROPOUT VOLTAGE vs OUTPUT CURRENT TPS72101 DROPOUT VOLTAGE vs INPUT VOLTAGE MINIMUM REQUIRED INPUT VOLTAGE vs OUTPUT VOLTAGE 5.5 V I − Minimum Required Input Voltage − V 250 200 TJ = 125°C 150 TJ = 25°C 100 TJ = −40°C 0 15 30 45 60 75 90 105 120 135 150 IO − Output Current − mA Figure 15. V DO − Dropout Voltage − mV IO = 150 mA DC Dropout Voltage − mV VO TPS72118 LINE TRANSIENT RESPONSE 250 6 VI = 2.8 V VO = 1.8 V IO = 150 mA Co = 1 µF 1 Figure 11. 2.8 0 2 Figure 10. VI 50 1 Figure 9. IO = 150 mA Co = 1 µF 0 2 f − Frequency − Hz I O − Output Current − mA V O − Output Voltage −V V I − Input Voltage − V TJ − Junction Temperature − °C 3.8 VEN 3 0 30 V − Output Voltage − V O 200 Enable Voltage − V 70 VI = 2.8 V Co = 1 µF Power Supply Ripple Rejection − dB V DO − Dropout Voltage − mV 250 TPS72118 OUTPUT VOLTAGE, ENABLE VOLTAGE vs TIME (START-UP) 200 TJ = 125°C 150 TJ = 25°C 100 TJ = −40°C 50 0 1.8 2.5 3.3 4 4.8 VI − Input Voltage − V Figure 16. Submit Documentation Feedback 5.5 IO = 150 mA 5 TJ = 125°C 4.5 TJ = 25°C 4 3.5 3 TJ = −40°C 2.5 2 1.5 1 1 1.5 2 2.5 3 3.5 4 4.5 VO − Output Voltage − V Figure 17. 5 5.5 TPS72101,, TPS72115 TPS72116, TPS72118 www.ti.com SLVS352C – DECEMBER 2001 – REVISED MARCH 2006 APPLICATION INFORMATION The TPS721xx family of low-dropout (LDO) regulators functions with a very low input voltage (>1.8 V). The dropout voltage is typically 150 mV at full load. Typical quiescent current (ground pin current) is only 85 µA and drops to 1 µA in the shutdown mode. DEVICE OPERATION The TPS721xx family can be operated at low input voltages due to low voltage circuit design techniques and a PMOS pass element that exhibits low dropout. A logic low on the enable input, EN, shuts off the output and reduces the supply current to less than 1 µA. EN may be tied to VIN in applications where the shutdown feature is not used. Current limiting and thermal protection prevent damage by excessive output current and/or power dissipation. The device switches into a constant-current mode at approximately 350 mA; further load reduces the output voltage instead of increasing the output current. The thermal protection shuts the regulator off if the junction temperature rises above 170°C. Recovery is automatic when the junction temperature drops approximately 20°C below the high temperature trip point. The PMOS pass element includes a back diode that safely conducts reverse current when the input voltage level drops below the output voltage level. A typical application circuit is shown in Figure 18. TPS721xx VI 1 IN OUT 5 VO 0.1 µF NC 3 4 EN GND 0.1 µF 2 Figure 18. Typical Application Circuit DUAL SUPPLY APPLICATION In portable, battery-powered electronics, separate power rails for the DSP or microcontroller core voltage, V(CORE), and I/O peripherals (VIO) are usually necessary. The TPS721xx family of LDO linear regulators is ideal for providing V(CORE) for the DSP or microcontroller. As shown in Figure 19, two AAA batteries provide an input voltage to a boost converter and the TPS72115 LDO linear regulator. The batteries combine input voltage ranges from 3.0 V down to 1.8 V near the end of their useful lives. Therefore, a boost converter is necessary to provide the typical 3.3 V needed for VIO, and the TPS72115 linear regulator provides a regulated V(CORE) voltage, which in this example is 1.5 V. Although there is no explicit circuitry to perform power-up sequencing of first V(CORE) then VIO, the output of the linear regulator reaches its regulated voltage much faster (< 400 µs) than the output of any switching type boost converter due to the inherent slow start up of those types of converters. Assuming a boost converter with minimum VI of 1.8 V is appropriately chosen, this power supply solution can be used over the entire life of the two off-the-shelf AAA batteries. Thus, this solution is very efficient and the design time and overall cost of the solution is minimized. Submit Documentation Feedback 7 TPS72101,, TPS72115 TPS72116, TPS72118 www.ti.com SLVS352C – DECEMBER 2001 – REVISED MARCH 2006 APPLICATION INFORMATION (continued) 1.8 V – 3 V 3.3 V VIO Boost Converter DSP or Controller 1.8 V 1.5 V TPS72115 VCORE Two AAA Batteries Figure 19. Dual Supply Application Circuit EXTERNAL CAPACITOR REQUIREMENTS A 0.1-µF ceramic bypass capacitor is required on both the input and output for stability. Larger capacitors improve transient response, noise rejection, and ripple rejection. A higher value electrolytic input capacitor may be necessary if large, fast rise time load transient are anticipated, and/or there is significant input resistance from the device to the input power supply. POWER DISSIPATION AND JUNCTION TEMPERATURE Specified regulator operation is assured to a junction temperature of 125°C; the maximum junction temperature allowable without damaging the device is 150°C. This restriction limits the power dissipation the regulator can handle in any given application. To ensure the junction temperature is within acceptable limits, calculate the maximum allowable dissipation, PD(max), and the actual dissipation, PD, which must be less than or equal to PD(max). The maximum-power-dissipation limit is determined using Equation 1 : T max
T A P  J D(max) R
JA (1) Where: • • • TJmax is the maximum allowable junction temperature. RθJA is the thermal resistance junction-to-ambient for the package; see the package dissipation rating table. TA is the ambient temperature. The regulator dissipation is calculated using Equation 2: P D    V V
I I O O (2) Power dissipation resulting from quiescent current is negligible. PROGRAMMING THE TPS72101 ADJUSTABLE LDO REGULATOR The output voltage of the TPS72101 adjustable regulator is programmed using an external resistor divider as shown in Figure 20. The output voltage is calculated using Equation 3: V O V ref  
1  R1 R2 (3) Where: • 8 Vref = 1.225 V typ (the internal reference voltage) Submit Documentation Feedback TPS72101,, TPS72115 TPS72116, TPS72118 www.ti.com SLVS352C – DECEMBER 2001 – REVISED MARCH 2006 APPLICATION INFORMATION (continued) Resistors R1 and R2 should be chosen for approximately 10-µA divider current. Lower value resistors can be used but offer no inherent advantage and waste more power. Higher values should be avoided, as leakage currents at FB increase the output voltage error. The recommended design procedure is to choose R2 = 30.1 kΩ to set the divider current at 10 µA and then calculate R1 using Equation 4: R1    V V O 1 ref
R2 (4) Where: • Vref = 1.225 V. TPS72101 OUTPUT VOLTAGE PROGRAMMING GUIDE DIVIDER RESISTANCE OUTPUT (kΩ)1 VOLTAGE (V) R1 R2 2.5 127 1 VI 0.1 µF OUT ≥ 1.7 V 3 121 Note (1): 1% values shown. IN 5 VO R1 EN ≤ 0.9 V FB GND 2 4 R2 0.1 µF Figure 20. TPS72101 Adjustable LDO Regulator Programming REGULATOR PROTECTION The TPS721xx pass element has a built-in back diode that safely conducts reverse current when the input voltage drops below the output voltage (for example, during power down). Current is conducted from the output to the input and is not internally limited. If extended reverse voltage is anticipated, external limiting might be appropriate. The TPS721xx also features internal current limiting and thermal protection. During normal operation, the TPS721xx limits output current to approximately 350 mA. When current limiting engages, the output voltage scales back linearly until the overcurrent condition ends. While current limiting is designed to prevent gross device failure, care should be taken not to exceed the power dissipation ratings of the package. If the temperature of the device exceeds 170°C, thermal-protection circuitry shuts it down. Once the device has cooled down to below 150°C, regulator operation resumes. Submit Documentation Feedback 9 PACKAGE OPTION ADDENDUM www.ti.com 14-Oct-2022 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) Samples (4/5) (6) TPS72101DBVR ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 PEKI Samples TPS72101DBVT ACTIVE SOT-23 DBV 5 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 PEKI Samples TPS72115DBVR ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 PEII Samples TPS72115DBVRG4 ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 PEII Samples TPS72115DBVT ACTIVE SOT-23 DBV 5 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 PEII Samples TPS72115DBVTG4 ACTIVE SOT-23 DBV 5 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 PEII Samples TPS72116DBVR ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 PHFI Samples TPS72116DBVT ACTIVE SOT-23 DBV 5 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 PHFI Samples TPS72118DBVR ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 PEJI Samples TPS72118DBVT ACTIVE SOT-23 DBV 5 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 PEJI Samples TPS72118DBVTG4 ACTIVE SOT-23 DBV 5 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 PEJI Samples (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. (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