TPS79718DCKRG4

TPS79718-EP, TPS79730-EP, TPS79733-EP www.ti.com SGLS348A – AUGUST 2006 – REVISED OCTOBER 2007 ULTRA LOW-POWER, 10 mA, LDO LINEAR REGULATORS WITH POWER GOOD OUTPUT FEATURES APPLICATIONS • • 1 • • • • • • • • • • • (1) Controlled Baseline – One Assembly Site – One Test Site – One Fabrication Site Extended Temperature Performance of –55°C to 125°C Enhanced Diminishing Manufacturing Sources (DMS) Support Enhanced Product-Change Notification Qualification Pedigree(1) 10 mA Low-Dropout Regulator Ultralow 1.2 µA Quiescent Current at 10 mA 5-Pin SC70/SOT-323 (DCK) Package Integrated Power Good Output Stable With Any Capacitor (> 0.47 µF) Dropout Voltage Typically 105 mV at 10 mA (TPS79733) Overcurrent Limitation Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits. Battery-Powered Microcontrollers and Microprocessors DESCRIPTION/ORDERING INFORMATION The TPS797xx family of low-dropout (LDO) voltage regulators offers the benefits of low-dropout voltage and ultralow-power operation. The device is stable with any capacitor (> 0.47 µF). Therefore, implementations of this device require little board space due to the miniaturized packaging and potentially small output capacitor. In addition, the family includes an integrated open drain active-high power good (PG) output. Intended for use in microcontroller based, battery-powered applications, the TPS797xx family's low dropout and ultralow-powered operation results in a significant increase in system battery operating life. The small packaging minimizes consumption of board space. The device is enabled when the applied voltage exceeds the minimum input voltage. The usual PNP pass transistor has been replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the dropout voltage is low, 125 mV (typ) at 10 mA of load current and is directly proportional to the load current. The quiescent current is ultralow (1.2 µA typ) and is stable over the entire range of output load current (0 mA to 10 mA). When properly configured with a pullup resistor, the PG output can be used to implement a power-on reset or low battery indicator. The TPS797xx is offered in 1.8 V, 3 V, and 3.3 V fixed options. ORDERING INFORMATION (1) TA PACKAGE (2) VOLTAGE 1.8 V –55°C to 125°C 3V SC70/SOT-323 (DCK) 3.3 V (1) (2) (3) PART NUMBER SYMBOL TPS79718MDCKREP CKW TPS79730MDCKREP BUA TPS79733MDCKREP (3) TBD For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI website at www.ti.com. Package drawings, thermal data, and symbolization are available at www.ti.com/packaging. Product Preview. Parameters in electrical characteristics are subject to change. 1 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. UNLESS OTHERWISE NOTED this document contains PRODUCTION DATA information current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2006–2007, Texas Instruments Incorporated TPS79718-EP, TPS79730-EP, TPS79733-EP www.ti.com SGLS348A – AUGUST 2006 – REVISED OCTOBER 2007 DCK PACKAGE (TOP VIEW) 1 GND 2 NC 3 5 OUT 2 VI = 4.3 V VO = 3.3 V Co = 1 µF IO = 10 mA 1.75 4 Ground Current − µ A PG GROUND CURRENT vs FREE-AIR TEMPERATURE IN 1.50 1.25 1 0.75 0.50 −40 −15 10 35 60 TA − Free-Air Temperature − °C 85 DEVICE INFORMATION FUNCTIONAL BLOCK DIAGRAM VOUT VIN Current Sense ILIM _ R1 + GND R2 Vref = 1.235 V Bandgap Reference VIN PG Delay TERMINAL FUNCTIONS TERMINAL NAME NO. IN 4 GND 2 NC 3 OUT 5 PG 2 1 I/O I DESCRIPTION The IN terminal is the power supply input to the device. Ground No connection O The OUT terminal provides the regulated output voltage of the device. O The PG terminal for the fixed voltage option devices is an open-drain active-high output that indicates the status of VO (output of the LDO). When VO exceeds approximately 90% of the regulated voltage, PG goes to a high impedance state. It goes to a low-impedance state when VO falls below approximately 90% (i.e. overload condition) of the regulated voltage. The open drain output of the PG terminal requires a pullup resistor. Submit Documentation Feedback Copyright © 2006–2007, Texas Instruments Incorporated Product Folder Link(s): TPS79718-EP TPS79730-EP TPS79733-EP TPS79718-EP, TPS79730-EP, TPS79733-EP www.ti.com SGLS348A – AUGUST 2006 – REVISED OCTOBER 2007 ABSOLUTE MAXIMUM RATINGS (1) over operating free-air temperature range (unless otherwise noted) Input voltage range (2) Maximum dc output voltage Peak output current VALUE UNIT 0.3 to 6 V 4.9 V Internally limited ESD rating, HBM 3 kV ESD rating, CDM 1 kV Continuous total power dissipation See Dissipation Rating Table TJ Operating junction temperature range –55 to 145 °C TA Operating ambient temperature range –55 to 125 °C Tstg Storage temperature range –65 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. DISSIPATION RATINGS BOARD PACKAGE RθJC (°C/W) RθJA (°C/W) DERATING FACTOR ABOVE TA = 25°C TA ≥ 25°C POWER RATING TA = 70°C POWER RATING TA = 85°C POWER RATING Low K DCK 165.39 396.24 2.52 mW/°C 252 mW 139 mW 101 mW 0W High K DCK 165.39 314.74 3.18 mW/°C 318 mW 175 mW 127 mW 127 mW Copyright © 2006–2007, Texas Instruments Incorporated TA = 125°C POWER RATING Submit Documentation Feedback Product Folder Link(s): TPS79718-EP TPS79730-EP TPS79733-EP 3 TPS79718-EP, TPS79730-EP, TPS79733-EP www.ti.com SGLS348A – AUGUST 2006 – REVISED OCTOBER 2007 ELECTRICAL CHARACTERISTICS over operating free-air temperature range (unless otherwise noted) PARAMETER VI TEST CONDITIONS MIN IO = 3 mA Input voltage (1) Continuous output current Operating ambient temperature V 5.5 V 0 10 mA –55 125 °C 1.895 V 3.12 V 3.432 V TA = 25°C, 2.8 V < VI < 5.5 V TPS79718 1.8 TJ = –55°C to 125°C, 2.8 V < VI < 5.5 V 1.705 TA = 25°C, 4 V < VI < 5.5 V Output voltage (1mA to 10mA load) (3) TPS79730 3 TJ = –55°C to 125°C, 4 V < VI < 5.5 V 2.88 TA = 25°C, 4.3 V < VI < 5.5 V TPS79733 Quiescent current (GND current) (3) Load regulation 4 1.2 TJ = –55°C to 125°C, IO = 10 mA 5 17 VO + 1 V < VI ≤ 5.5 V, TA = 25°C VO = 0 V, See Note 4 190 Power supply ripple rejection (TPS79718) f = 100 Hz, CO = 10 mF, IO = 10 mA, TA = 25°C 105 IO = 10 mA, TA = –55°C to 125°C VO decreasing VI = 1.4 V, I(PG) = 100 uA PG leakage current V(PG) = 5 V mA dB 400 IO = 10 mA, TA = 25°C PG output low voltage 300 125 IO = 10 mA, TA = –55°C to 125°C PG trip threshold voltage %/V µVRMS 50 IO = 10 mA, TA = 25°C I(PG) = 100 uA, V(PG) ≥ 0.8 V mV 0.8 Output current limit Minimum input voltage for valid PG µA 0.15 VO + 1 V < VI ≤ 5.5 V, TJ = –55°C to 125°C 600 TPS79733 (4) TA = 25°C, 0 mA < IO < 10 mA BW = 200 Hz to 100 kHz, CO = 10 mF, IO = 10 mA, TA = 25°C Dropout voltage (4) (3) 3.168 Output noise voltage (TPS79718) TPS79730 (1) (2) 3.3 TJ = –55°C to 125°C, 4.3 V < VI < 5.5 V TA = 25°C, IO = 1 mA to 10 mA Output voltage line regulation (ΔVout/ΔVin) (3) UNIT 2 (2) TA MAX 5.5 IO = 10 mA IO TYP 1.8 mV 400 1.2 V 90 0.14 0.1 %VO 0.4 V nA To calculate the minimum input voltage for your maximum output current, use the following formula: VI(min) = VO(max) + VDO (max load) Continuous output current is limited by internal protection circuitry, but it is not recommended that the device operate under conditions beyond those specified in this table for extended periods of time. The minimum IN operating voltage is 1.8 V or VO (typ) + 1 V, whichever is greater. The maximum IN voltage is 5.5 V. There is no minimum output current requirement and the maximum output current is 10 mA. IN voltage equals VO(typ) – 100 mV; The TPS79730 input voltage is set to 2.9 V and the TPS79733 input voltage is set to 3.2 V. The TPS79718 dropout voltage is limited by input voltage range limitations. Submit Documentation Feedback Copyright © 2006–2007, Texas Instruments Incorporated Product Folder Link(s): TPS79718-EP TPS79730-EP TPS79733-EP TPS79718-EP, TPS79730-EP, TPS79733-EP www.ti.com SGLS348A – AUGUST 2006 – REVISED OCTOBER 2007 TPS797xx PG TIMING DIAGRAM VIN Vmin (see Note A) t VOUT Threshold Voltage VIT + (see Note B) VIT − (see Note B) t PG Output t A. Vmin = VOUT + VDO B. The PG trip voltage is typically 10% lower than the output voltage (90%VO). VIT- to VIT+ is the hysteresis voltage. Copyright © 2006–2007, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): TPS79718-EP TPS79730-EP TPS79733-EP 5 TPS79718-EP, TPS79730-EP, TPS79733-EP www.ti.com SGLS348A – AUGUST 2006 – REVISED OCTOBER 2007 TYPICAL CHARACTERISTICS OUTPUT VOLTAGE vs OUTPUT CURRENT OUTPUT VOLTAGE vs OUTPUT CURRENT 3.315 1.815 VI = 4.3 V Co = 1 µF TA = 25°C 3.35 VI = 2.8 V Co = 1 µF TA = 25°C 3.305 3.300 3.295 3.33 1.805 1.800 1.795 3.290 1.790 3.285 1.785 VI = 4.3 V Co = 1 µF 3.34 V O − Output Voltage − V 1.810 V O − Output Voltage − V 3.310 V O − Output Voltage − V OUTPUT VOLTAGE vs FREE-AIR TEMPERATURE 3.32 3.31 IO = 1 mA 3.30 3.29 IO = 10 mA 3.28 3.27 3.26 0 2 4 6 8 IO − Output Current − mA 2 4 6 8 IO − Output Current − mA 10 OUTPUT VOLTAGE vs FREE-AIR TEMPERATURE GROUND CURRENT vs FREE-AIR TEMPERATURE OUTPUT SPECTRAL NOISE DENSITY vs FREQUENCY Ground Current − µ A IO = 1 mA IO = 10 mA 1.79 VI = 4.3 V VO = 3.3 V Co = 1 µF IO = 10 mA 1.50 1.25 1 0.75 −15 10 35 60 TA − Free-Air Temperature − °C 0.50 −40 85 IO = 10 mA 6 IO = 1 mA 4 2 0 −15 10 35 60 TA − Free-Air Temperature − °C 85 100 1k 10 k f − Frequency − Hz Figure 6. OUTPUT IMPEDANCE vs FREQUENCY DROPOUT VOLTAGE vs FREE-AIR TEMPERATURE vs POWER UP / POWER DOWN IO = 1 mA 25 20 IO = 10 mA 15 10 VI = 3.2 V Co = 1 µF 100 IO = 10 mA 80 60 40 IO = 1 mA 20 5 0 100 1k 10k 100k 1M 10 M f − Frequency − Hz 0 −40 −25 −10 VO = 3.3 V RL = 330 Ω 6 VO − Output Voltage − V V − Input Voltage − V I 120 5 20 35 5 VI 4 3 VO 2 1 0 50 65 80 0 TA − Free-Air Temperature − °C Figure 7. 10 20 30 40 50 60 70 80 90 100 t − Time − ms Figure 8. Submit Documentation Feedback 100 k 7 140 V DO − Dropout Voltage − mV Zo − Output Impedance − Ω 8 Figure 5. VI = 4.3 V VO = 3.3 V Co = 1 µF TJ = 25°C 10 VI = 2.8 V VO = 1.8 V Co = 1 µF Figure 4. 40 6 10 Output Spectral Noise Density − nV/ 1.75 Hz 2 1.80 30 85 Figure 3. 1.81 35 −15 10 35 60 TA − Free-Air Temperature − °C Figure 2. VI = 2.8 V Co = 1 µF 1.78 −40 −40 Figure 1. 1.82 V O − Output Voltage − V 3.25 0 10 Figure 9. Copyright © 2006–2007, Texas Instruments Incorporated Product Folder Link(s): TPS79718-EP TPS79730-EP TPS79733-EP TPS79718-EP, TPS79730-EP, TPS79733-EP www.ti.com SGLS348A – AUGUST 2006 – REVISED OCTOBER 2007 TYPICAL CHARACTERISTICS (continued) 100 50 IO = 10 mA VO = 1.8 V Co = 4.7 µF 0 50 100 50 0 −50 VI = 2.8 V VO = 1.8 V Co = 4.7 µF −100 10 5 1 mA 0 IO = 10 mA Co = 4.7 µF 5.3 4.3 dv 0.14 V = dt µs 200 100 0 −100 0 200 400 600 800 1 k 12 −100 V − Input Voltage − V I 2.8 TPS79733 LINE TRANSIENT RESPONSE V − Output Voltage − mV O 3.8 ∆ VO− Change In Output Voltage − mV 0.14 V dv = µs dt TPS79718 LOAD TRANSIENT RESPONSE Current Load − mA VO − Output Voltage − mV V − Input Voltage − V I TPS79718 LINE TRANSIENT RESPONSE 0 100 200 300 400 500 600 700 800 900 1 k 14 16 18 2k t − Time − µs t − Time − µs Figure 10. −200 0 100 200 300 400 500 600 700 800 900 1 k Figure 11. t − Time − µs Figure 12. VI = 4.3 V Co = 4.7 µF 100 50 I O − Output Current − mA 0 −50 −100 10 ∆ V − Change In O Output Voltage − mV TPS79733 LOAD TRANSIENT RESPONSE 5 1 mA 0 0 200 400 600 800 1 k 12 14 16 18 2k t − Time − µs Figure 13. Copyright © 2006–2007, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): TPS79718-EP TPS79730-EP TPS79733-EP 7 TPS79718-EP, TPS79730-EP, TPS79733-EP www.ti.com SGLS348A – AUGUST 2006 – REVISED OCTOBER 2007 APPLICATION INFORMATION The TPS797xx family of low-dropout (LDO) regulators haS been optimized for use in micropower applications. The devices feature extremely low dropout voltages and ultralow quiescent current (1.2 µA typ). A typical application circuit is shown in Figure 14. TPS797xx 4 IN PG 1 100 kΩ + C1 0.1 µF OUT 5 VO 3 − NC GND + 0.47 µF 2 Figure 14. Typical Application Circuit External Capacitor Requirements Although not required, a 0.1 µF or larger input bypass capacitor, connected between IN and GND and located close to the TPS797xx, is recommended, especially when a highly resistive power supply is powering the LDO in addition to other devices. Like all low-dropout regulators, the TPS797xx requires an output capacitor connected between OUT and GND to stabilize the internal control loop. The minimum recommended capacitance is 0.47 µF. Any 0.47 µF capacitor is suitable. Capacitor values larger than 0.47 µF are acceptable. Power Dissipation and Junction Temperature Specified regulator operation is assured to a junction temperature of 125°C; restrict the maximum junction temperature to 125°C under normal operating conditions. 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). T max * T A P + J D(max) R θJA The maximum-power-dissipation limit is determined using the following equation: Where: TJmax is the maximum allowable junction temperature. RθJA is the thermal resistance junction-to-ambient for the package (see the Power Dissipation Rating Table). TA is the ambient temperature. The regulator dissipation is calculated using: PD = (VI - VO) × IO Power dissipation resulting from quiescent current is negligible. Excessive power dissipation triggers the thermal protection circuit. 8 Submit Documentation Feedback Copyright © 2006–2007, Texas Instruments Incorporated Product Folder Link(s): TPS79718-EP TPS79730-EP TPS79733-EP TPS79718-EP, TPS79730-EP, TPS79733-EP www.ti.com SGLS348A – AUGUST 2006 – REVISED OCTOBER 2007 Regulator Protection The TPS797xx PMOS-pass transistor has a built-in back diode that conducts reverse current when the input voltage drops below the output voltage (e.g., during power down). Current is conducted from the output to the input and is not internally limited. If extended reverse voltage operation is anticipated, external limiting might be appropriate. The TPS797xx features internal current limiting. During normal operation, the TPS797xx limits output current to approximately 190 mA. When current limiting engages, the output voltage scales back linearly until the overcurrent condition ends. Take care not to exceed the power dissipation ratings of the package. Microcontroller Application One application for which this device is particularly suited is providing a regulated input voltage and power good (PG) supervisory signal to low-power devices such as mixed-signal microcontrollers. The quiescent or ground current of the TPS797xx family is typically 1.2 µA even at full load; therefore, the reduction in battery life by including the TPS797xx in the system is negligible. The primary benefits of using the TPS797xx to power low power digital devices include: • Regulated output voltage that protects the device from battery droop and noise on the line (e.g., switch bounce) • Smooth, monotonic power up • PG signal for controlled device RESET • Potential to use an existing 5-V power rail to power a 3.3 V or lower device • Potential to provide separate digital and analog power and ground supplies for a system with only one power source Figure 15 shows an application in which the TPS79718 is used to power Texas Instruments MSP430 mixed signal microcontroller. VOUT VIN VCC 1.8 V + 0.47 µF TPS79718 − MSP430 or Equivalent 0.1 µF PG GND RESET VSS Figure 15. MSP430 Microcontroller Powered by the TPS79718 Regulator Minimal board space is needed to accommodate the DCK (SC70/SOT-323) packaged TPS79718, the 0.1 µF output capacitor, the 0.47 µF input capacitor, and the pullup resistor on the PG pin. Copyright © 2006–2007, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): TPS79718-EP TPS79730-EP TPS79733-EP 9 PACKAGE OPTION ADDENDUM www.ti.com 10-Dec-2020 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) TPS79718MDCKREP ACTIVE SC70 DCK 5 3000 RoHS & Green NIPDAUAG Level-1-260C-UNLIM -55 to 125 CKW TPS79730MDCKREP ACTIVE SC70 DCK 5 3000 RoHS & Green NIPDAUAG Level-1-260C-UNLIM -55 to 125 BUA V62/06673-01XE ACTIVE SC70 DCK 5 3000 RoHS & Green NIPDAUAG Level-1-260C-UNLIM -55 to 125 CKW V62/06673-02XE ACTIVE SC70 DCK 5 3000 RoHS & Green NIPDAUAG Level-1-260C-UNLIM -55 to 125 BUA (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