TPS76615,, TPS76618,, TPS76625 TPS76627, TPS76628, TPS76630 TPS76633, TPS76650, TPS76601 www.ti.com................................................................................................................................................. SLVS237C - AUGUST 1999 - REVISED JANUARY 2009 ULTRALOW QUIESCENT CURRENT 250-mA LOW DROPOUT VOLTAGE REGULATORS FEATURES 1 * 250-mA Low Dropout Voltage Regulator * Available in 1.5 V, 1.8 V, 2.5 V, 2.7 V, 2.8 V, 3.0 V, 3.3 V, 5.0 V Fixed Output and Adjustable Versions * Dropout Voltage to 140 mV (Typ) at 250 mA (TPS76650) * Ultralow 35-A Typical Quiescent Current * 3% Tolerance Over Specified Conditions for Fixed Output Versions * Open-Drain Power Good * 8-Pin SOIC Package * Thermal Shutdown Protection 2 DESCRIPTION Power good (PG) is an active high output that can be used to implement a power-on reset or a low-battery indicator. The TPS766xx is offered in 1.5 V, 1.8 V, 2.5 V, 2.7 V, 2.8 V, 3.0 V, 3.3 V and 5.0 V fixed voltage versions and in an adjustable version (programmable over the range of 1.25 V to 5.5 V). Output voltage tolerance is specified as a maximum of 3% over line, load, and temperature ranges. The TPS766xx family is available in an 8-pin SOIC package. VDO - Output Voltage - V This device is designed to have an ultralow quiescent current and be stable with a 4.7-F capacitor. This combination provides high performance at a reasonable cost. Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 230 mV at an output current of 250 mA for the TPS76650) and is directly proportional to the output current. Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent of output loading (typically 35 A over the full range of output current, 0 mA to 250 mA). These two key specifications yield a significant improvement in operating life for battery-powered systems. This LDO family also features a sleep mode; applying a TTL high signal to EN (enable) shuts down the regulator, reducing the quiescent current to less than 1 A (typ). 1 2 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. All trademarks are the property of their respective owners. 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 (c) 1999-2009, Texas Instruments Incorporated TPS76615,, TPS76618,, TPS76625 TPS76627, TPS76628, TPS76630 TPS76633, TPS76650, TPS76601 SLVS237C - AUGUST 1999 - REVISED JANUARY 2009................................................................................................................................................. www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. ORDERING INFORMATION (1) VOUT (2) PRODUCT TPS766xxyz (1) XX is nominal output voltage (for example, 28 = 2.8V, 01 = Adjustable). (3) Y is package designator. Z is package quantity. 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. Output voltages from 1.5 V to 5.0 V in 50-mV increments are available through the use of innovative factory EEPROM programming; minimum order quantities may apply. Contact factory for details and availability. The TPS76601 is programmable using an external resistor divider (see Application Information). (2) (3) ABSOLUTE MAXIMUM RATINGS Over operating free-air temperature range (unless otherwise noted). (1) PARAMETER VI TPS766xx UNIT Input voltage range (2) -0.3 to 13.5 V Voltage range at EN -0.3 to 16.5 V 16.5 V Maximum PG voltage Peak output current Internally limited Continuous total power dissipation See Dissipation Ratings Table VO Output voltage (OUT, FB) 7 V TJ Tstg Operating virtual junction temperature range -40 to +125 C Storage temperature range -65 to +150 C 2 kV ESD rating, HBM (1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those specified is not implied. All voltage values are with respect to network terminal ground. (2) DISSIPATION RATINGS PACKAGE AIR FLOW (CFM) TA < +25C POWER RATING DERATING FACTOR ABOVE TA = +25C TA = +70C POWER RATING TA = +85C POWER RATING 0 568 mW 5.68 mW/C 312 mW 227 mW 250 904 mW 9.04 mW/C 497 mW 361 mW D RECOMMENDED OPERATING CONDITIONS MIN (1) VI Input voltage VO Output voltage range IO Output current (2) TJ Operating virtual junction temperature(2) (1) (2) 2 MAX UNIT 2.7 10 1.2 5.5 V V 0 250 mA -40 125 C VI(min) = VO(max) + VDO(max load) To calculate the minimum input voltage for your maximum output current, use the following equation: Continuous current and operating junction temperature are 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. Submit Documentation Feedback Copyright (c) 1999-2009, Texas Instruments Incorporated Product Folder Link(s): TPS76615 TPS76618 TPS76625 TPS76627 TPS76628 TPS76630 TPS76633 TPS76650 TPS76601 TPS76615,, TPS76618,, TPS76625 TPS76627, TPS76628, TPS76630 TPS76633, TPS76650, TPS76601 www.ti.com................................................................................................................................................. SLVS237C - AUGUST 1999 - REVISED JANUARY 2009 ELECTRICAL CHARACTERISTICS Over recommended operating free-air temperature range, Vi = VO(typ) + 1 V, IO = 10 A, EN = 0 V, CO = 4.7 F (unless otherwise noted). PARAMETER TEST CONDITIONS MIN 5.5 V VO 1.25 V, TJ = +25C 5.5 V VO 1.25 V, TJ = -40C to +125C TJ = +25C, 2.7 V < VIN < 10 V TJ = -40C to +125C, 2.7 V < VIN < 10 V TJ = +25C, 2.8 V < VIN < 10 V TJ = -40C to +125C, 2.8 V < VIN < 10 V TJ = +25C, 3.5 V < VIN < 10 V TJ = -40C to +125C, 3.5 V < VIN < 10 V TJ = +25C, 3.7 V < VIN < 10 V TJ = -40C to +125C, 3.7 V < VIN < 10 V TJ = +25C, 3.8 V < VIN < 10 V TJ = -40C to +125C, 3.8 V < VIN < 10 V TJ = +25C, 4.0 V < VIN < 10 V TJ = -40C to +125C, 4.0 V < VIN < 10 V TJ = +25C, 4.3 V < VIN < 10 V TJ = -40C to +125C, 4.3 V < VIN < 10 V TJ = +25C, 6.0 V < VIN < 10 V TJ = -40C to +125C, 6.0 V < VIN < 10 V 10 A < IO < 250 mA, TJ = +25C IO = 250 mA, TJ = -40C to +125C Output voltage line regulation (VO/VO) (1), (2) VO + 1 V < VI 10 V, TJ = +25C Load regulation IO = 10 A to 250 mA TPS76601 TPS76615 TPS76618 TPS76625 Output voltage (10 A to 250 mA load)(1) TPS76627 TPS76628 TPS76630 TPS76633 TPS76650 Quiescent current (GND current) EN = 0 V (1) CO = 4.7 F, Output current limit 0.97 VO TPS76601 1.03 VO 1.455 1.545 1.8 1.746 1.854 2.5 2.425 2.575 2.7 2.619 2.781 2.884 3.0 2.910 3.090 3.3 3.201 3.399 5.0 4.850 5.150 35 50 0.01 Vrms 0.8 TJ = +25C 2.7 V < VI < 10 V EN = VI, TJ = -40C to +125C 2.7 V < VI < 10 V 1.2 C 1 A 10 FB = 1.5 V 2 A nA 2.0 V 0.8 CO = 4.7 F, TJ = +25C A 150 Low level enable input voltage (1) (2) %/V 200 TJ = +25C EN = VI, f = 1 kHz, IO = 10 A, A 0.5% High level enable input voltage Power-supply ripple rejection (1) V 2.8 2.716 VO = 0 V FB input current UNIT 1.5 Thermal shutdown junction temperature Standby current MAX VO BW = 300 Hz to 50 kHz, Output noise voltage TYP 63 V dB Minimum IN operating voltage is 2.7 V or VO(typ) + 1 V, whichever is greater. Maximum IN voltage 10 V. If VO 1.8 V then Vimin = 2.7 V, Vimax = 10 V: Line Reg. (mV) = (%/V) VO(Vimax - 2.7 V) 100 1000 If VO 2.5 V then Vimin = VO + 1 V, Vimax = 10 V: Line Reg. (mV) = (%/V) VO(Vimax - (VO + 1 V)) 100 1000 Copyright (c) 1999-2009, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): TPS76615 TPS76618 TPS76625 TPS76627 TPS76628 TPS76630 TPS76633 TPS76650 TPS76601 3 TPS76615,, TPS76618,, TPS76625 TPS76627, TPS76628, TPS76630 TPS76633, TPS76650, TPS76601 SLVS237C - AUGUST 1999 - REVISED JANUARY 2009................................................................................................................................................. www.ti.com ELECTRICAL CHARACTERISTICS (continued) Over recommended operating free-air temperature range, Vi = VO(typ) + 1 V, IO = 10 A, EN = 0 V, CO = 4.7 F (unless otherwise noted). PARAMETER PG TEST CONDITIONS Minimum input voltage for valid PG IO(PG) = 300 A Trip threshold voltage VO decreasing Hysteresis voltage Measured at VO Output low voltage VI = 2.7 V, Leakage current V(PG) = 5 V Input current (EN) TPS76628 TPS76630 Dropout voltage (3) TPS76633 TPS76650 (3) MIN TYP MAX UNIT 98 %VO 1.1 92 0.5 IO(PG) = 1 mA 0.15 EN = 0 V -1 EN = VI -1 IO = 250 mA, TJ = +25C IO = 250 mA, TJ = -40C to +125C IO = 250 mA, TJ = +25C IO = 250 mA, TJ = -40C to +125C IO = 250 mA, TJ = +25C IO = 250 mA, TJ = -40C to +125C IO = 250 mA, TJ = +25C IO = 250 mA, TJ = -40C to +125C 0 %VO 0.4 V 1 A 1 1 A 310 540 270 470 230 mV 400 140 250 IN voltage equals VO(Typ) - 100 mV; TPS76601 output voltage set to 3.3 V nominal with external resistor divider. TPS76615, TPS76618, TPS76625, and TPS76627 dropout voltage limited by input voltage range limitations (that is, TPS76630 input voltage must drop to 2.9 V for purpose of this test). (1) CO (1) See Applications Information section for capacitor selection details. Figure 1. Typical Application Configuration for Fixed Output Options 4 Submit Documentation Feedback Copyright (c) 1999-2009, Texas Instruments Incorporated Product Folder Link(s): TPS76615 TPS76618 TPS76625 TPS76627 TPS76628 TPS76630 TPS76633 TPS76650 TPS76601 TPS76615,, TPS76618,, TPS76625 TPS76627, TPS76628, TPS76630 TPS76633, TPS76650, TPS76601 www.ti.com................................................................................................................................................. SLVS237C - AUGUST 1999 - REVISED JANUARY 2009 FUNCTIONAL BLOCK DIAGRAM--ADJUSTABLE VERSION FUNCTIONAL BLOCK DIAGRAM--FIXED-VOLTAGE VERSION Copyright (c) 1999-2009, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): TPS76615 TPS76618 TPS76625 TPS76627 TPS76628 TPS76630 TPS76633 TPS76650 TPS76601 5 TPS76615,, TPS76618,, TPS76625 TPS76627, TPS76628, TPS76630 TPS76633, TPS76650, TPS76601 SLVS237C - AUGUST 1999 - REVISED JANUARY 2009................................................................................................................................................. www.ti.com D PACKAGE SOIC-8 (TOP VIEW) NC/FB 1 8 OUT PG 2 7 OUT GND 3 6 IN EN 4 5 IN PIN DESCRIPTIONS TPS766xx NAME NO. I/O DESCRIPTION EN 4 I Enable input. FB/NC 1 I Feedback input voltage for adjustable device (not connected for fixed options). GND 3 Regulator ground. IN 5, 6 I Input voltage. OUT 7, 8 O Regulated output voltage. 2 O Power good output. PG Table 1. Table of Graphs FIGURE Output voltage Ground current vs Load current Figure 2, Figure 3 vs Free-air temperature Figure 4, Figure 5 vs Load current Figure 6, Figure 7 vs Free-air temperature Figure 8, Figure 9 Power-supply ripple rejection vs Frequency Figure 10 Output spectral noise density vs Frequency Figure 11 Output impedance vs Frequency Figure 12 Dropout voltage vs Free-air temperature Figure 13, Figure 14 Line transient response Figure 15, Figure 17 Load transient response Figure 16, Figure 18 Output voltage vs Time Dropout voltage vs Input voltage Equivalent series resistance (ESR) vs Output current Equivalent series resistance (ESR) vs Added ceramic capacitance 6 Submit Documentation Feedback Figure 19 Figure 20 Figure 21 to Figure 24 Figure 25, Figure 26 Copyright (c) 1999-2009, Texas Instruments Incorporated Product Folder Link(s): TPS76615 TPS76618 TPS76625 TPS76627 TPS76628 TPS76630 TPS76633 TPS76650 TPS76601 TPS76615,, TPS76618,, TPS76625 TPS76627, TPS76628, TPS76630 TPS76633, TPS76650, TPS76601 www.ti.com................................................................................................................................................. SLVS237C - AUGUST 1999 - REVISED JANUARY 2009 TYPICAL CHARACTERISTICS TPS76633 OUTPUT VOLTAGE vs LOAD CURRENT TPS76615 OUTPUT VOLTAGE vs LOAD CURRENT Figure 2. Figure 3. TPS76633 OUTPUT VOLTAGE vs FREE-AIR TEMPERATURE TPS76615 OUTPUT VOLTAGE vs FREE-AIR TEMPERATURE Figure 4. Figure 5. Copyright (c) 1999-2009, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): TPS76615 TPS76618 TPS76625 TPS76627 TPS76628 TPS76630 TPS76633 TPS76650 TPS76601 7 TPS76615,, TPS76618,, TPS76625 TPS76627, TPS76628, TPS76630 TPS76633, TPS76650, TPS76601 SLVS237C - AUGUST 1999 - REVISED JANUARY 2009................................................................................................................................................. www.ti.com TYPICAL CHARACTERISTICS (continued) 8 TPS76633 GROUND CURRENT vs LOAD CURRENT TPS76615 GROUND CURRENT vs LOAD CURRENT Figure 6. Figure 7. TPS76633 GROUND CURRENT vs FREE-AIR TEMPERATURE TPS76615 GROUND CURRENT vs FREE-AIR TEMPERATURE Figure 8. Figure 9. Submit Documentation Feedback Copyright (c) 1999-2009, Texas Instruments Incorporated Product Folder Link(s): TPS76615 TPS76618 TPS76625 TPS76627 TPS76628 TPS76630 TPS76633 TPS76650 TPS76601 TPS76615,, TPS76618,, TPS76625 TPS76627, TPS76628, TPS76630 TPS76633, TPS76650, TPS76601 www.ti.com................................................................................................................................................. SLVS237C - AUGUST 1999 - REVISED JANUARY 2009 TYPICAL CHARACTERISTICS (continued) TPS76633 POWER-SUPPLY RIPPLE REJECTION vs FREQUENCY TPS76633 OUTPUT SPECTRAL NOISE DENSITY vs FREQUENCY Figure 10. Figure 11. TPS76633 OUTPUT IMPEDANCE vs FREQUENCY TPS76650 DROPOUT VOLTAGE vs FREE-AIR TEMPEATURE Figure 12. Figure 13. Copyright (c) 1999-2009, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): TPS76615 TPS76618 TPS76625 TPS76627 TPS76628 TPS76630 TPS76633 TPS76650 TPS76601 9 TPS76615,, TPS76618,, TPS76625 TPS76627, TPS76628, TPS76630 TPS76633, TPS76650, TPS76601 SLVS237C - AUGUST 1999 - REVISED JANUARY 2009................................................................................................................................................. www.ti.com TYPICAL CHARACTERISTICS (continued) 10 TPS76633 DROPOUT VOLTAGE vs FREE-AIR TEMPEATURE TPS76615 LINE TRANSIENT RESPONSE Figure 14. Figure 15. TPS76633 LOAD TRANSIENT RESPONSE TPS76633 LINE TRANSIENT RESPONSE Figure 16. Figure 17. Submit Documentation Feedback Copyright (c) 1999-2009, Texas Instruments Incorporated Product Folder Link(s): TPS76615 TPS76618 TPS76625 TPS76627 TPS76628 TPS76630 TPS76633 TPS76650 TPS76601 TPS76615,, TPS76618,, TPS76625 TPS76627, TPS76628, TPS76630 TPS76633, TPS76650, TPS76601 www.ti.com................................................................................................................................................. SLVS237C - AUGUST 1999 - REVISED JANUARY 2009 TYPICAL CHARACTERISTICS (continued) TPS76633 LOAD TRANSIENT RESPONSE TPS76633 OUTPUT VOLTAGE vs TIME (AT STARTUP) Figure 18. Figure 19. TPS76601 DROPOUT VOLTAGE vs INPUT VOLTAGE Figure 20. Copyright (c) 1999-2009, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): TPS76615 TPS76618 TPS76625 TPS76627 TPS76628 TPS76630 TPS76633 TPS76650 TPS76601 11 TPS76615,, TPS76618,, TPS76625 TPS76627, TPS76628, TPS76630 TPS76633, TPS76650, TPS76601 SLVS237C - AUGUST 1999 - REVISED JANUARY 2009................................................................................................................................................. www.ti.com TYPICAL CHARACTERISTICS (continued) TYPICAL REGION OF STABILITY EQUIVALENT SERIES RESISTANCE(1) vs OUTPUT CURRENT TYPICAL REGION OF STABILITY EQUIVALENT SERIES RESISTANCE(1) vs OUTPUT CURRENT Figure 21. Figure 22. TYPICAL REGION OF STABILITY EQUIVALENT SERIES RESISTANCE(1) vs OUTPUT CURRENT TYPICAL REGION OF STABILITY EQUIVALENT SERIES RESISTANCE(1) vs OUTPUT CURRENT Figure 23. Figure 24. (1) Equivalent series resistance (ESR) refers to the total series resistance, including the ESR of the capacitor, any series resistance added externally, and PWB trace resistance to CO. 12 Submit Documentation Feedback Copyright (c) 1999-2009, Texas Instruments Incorporated Product Folder Link(s): TPS76615 TPS76618 TPS76625 TPS76627 TPS76628 TPS76630 TPS76633 TPS76650 TPS76601 TPS76615,, TPS76618,, TPS76625 TPS76627, TPS76628, TPS76630 TPS76633, TPS76650, TPS76601 www.ti.com................................................................................................................................................. SLVS237C - AUGUST 1999 - REVISED JANUARY 2009 TYPICAL CHARACTERISTICS (continued) TYPICAL REGION OF STABILITY EQUIVALENT SERIES RESISTANCE(1) vs ADDED CERAMIC CAPACITANCE TYPICAL REGION OF STABILITY EQUIVALENT SERIES RESISTANCE(1) vs ADDED CERAMIC CAPACITANCE Figure 25. Figure 26. (1) Equivalent series resistance (ESR) refers to the total series resistance, including the ESR of the capacitor, any series resistance added externally, and PWB trace resistance to CO. Figure 27. Test Circuit for Typical Regions of Stability (Figure 21 through Figure 24) (Fixed Output Options) Copyright (c) 1999-2009, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): TPS76615 TPS76618 TPS76625 TPS76627 TPS76628 TPS76630 TPS76633 TPS76650 TPS76601 13 TPS76615,, TPS76618,, TPS76625 TPS76627, TPS76628, TPS76630 TPS76633, TPS76650, TPS76601 SLVS237C - AUGUST 1999 - REVISED JANUARY 2009................................................................................................................................................. www.ti.com APPLICATION INFORMATION The TPS766xx family includes eight fixed-output voltage regulators (1.5 V, 1.8 V, 2.5 V, 2.7 V, 2.8 V, 3.0 V, 3.3 V, and 5.0 V), and an adjustable regulator, the TPS76601 (adjustable from 1.25 V to 5.5 V). DEVICE OPERATION The TPS766xx features very low quiescent current that remains virtually constant even with varying loads. Conventional LDO regulators use a pnp pass element, the base current of which is directly proportional to the load current through the regulator (IB = IC/). The TPS766xx uses a PMOS transistor to pass current; because the gate of the PMOS is voltage driven, operating current is low and invariable over the full load range. Another pitfall associated with the pnp pass element is its tendency to saturate when the device goes into dropout. The resulting drop in forces an increase in IB to maintain the load. During power up, this increase in IB translates to large start-up currents. Systems with limited supply current may fail to start up. In battery-powered systems, it means rapid battery discharge when the voltage decays below the minimum required for regulation. The TPS766xx quiescent current remains low even when the regulator drops out, eliminating both problems. The TPS766xx family also features a shutdown mode that places the output in the high-impedance state (essentially equal to the feedback-divider resistance) and reduces quiescent current to 1 A (typ). If the shutdown feature is not used, EN should be tied to ground. Response to an enable transition is quick; regulated output voltage is reestablished in typically 160 s. MINIMUM LOAD REQUIREMENTS The TPS766xx family is stable even at zero load; no minimum load is required for operation. FB--PIN CONNECTION (ADJUSTABLE VERSION ONLY) The FB pin is an input pin to sense the output voltage and close the loop for the adjustable option. The output voltage is sensed through a resistor divider network to close the loop as shown in Figure 29. Normally, this connection should be as short as possible; however, the connection can be made near a critical circuit to improve performance at that point. Internally, FB connects to a high-impedance, wide-bandwidth amplifier and noise pickup feeds through to the regulator output. Routing the FB connection to minimize or avoid noise pickup is essential. EXTERNAL CAPACITOR REQUIREMENTS An input capacitor is not usually required; however, a ceramic bypass capacitor (0.047 F or larger) improves load transient response and noise rejection if the TPS766xx is located more than a few inches from the power supply. A higher-capacitance electrolytic capacitor may be necessary if large (hundreds of milliamps) load transients with fast rise times are anticipated. Like most low dropout regulators, the TPS766xx requires an output capacitor connected between OUT and GND to stabilize the internal control loop. The minimum recommended capacitance value is 4.7 F and the ESR (equivalent series resistance) must be between 300 mW and 20 . Capacitor values 4.7 F or larger are acceptable, provided the ESR is less than 20 . Solid tantalum electrolytic and aluminum electrolytic capacitors are all suitable, provided they meet the requirements described previously. Ceramic capacitors, with series resistors that are sized to meet the previously described requirements, may also be used. 14 Submit Documentation Feedback Copyright (c) 1999-2009, Texas Instruments Incorporated Product Folder Link(s): TPS76615 TPS76618 TPS76625 TPS76627 TPS76628 TPS76630 TPS76633 TPS76650 TPS76601 TPS76615,, TPS76618,, TPS76625 TPS76627, TPS76628, TPS76630 TPS76633, TPS76650, TPS76601 www.ti.com................................................................................................................................................. SLVS237C - AUGUST 1999 - REVISED JANUARY 2009 Figure 28. Typical Application Circuit (Fixed Versions) PROGRAMMING THE TPS76601 ADJUSTABLE LDO REGULATOR The output voltage of the TPS76601 adjustable regulator is programmed using an external resistor divider as shown in Figure 29. The output voltage is calculated using: (1) Where: * Vref = 1.224 V typ (the internal reference voltage) Resistors R1 and R2 should be chosen for approximately 7-A divider current. Lower value resistors can be used but offer no inherent advantage and waste more power. Higher values should be avoided because leakage currents at FB increase the output voltage error. The recommended design procedure is to choose R2 = 169 k to set the divider current at 7 A, and then calculate R1 using: (2) Figure 29. TPS76601 Adjustable LDO Regulator Programming Copyright (c) 1999-2009, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): TPS76615 TPS76618 TPS76625 TPS76627 TPS76628 TPS76630 TPS76633 TPS76650 TPS76601 15 TPS76615,, TPS76618,, TPS76625 TPS76627, TPS76628, TPS76630 TPS76633, TPS76650, TPS76601 SLVS237C - AUGUST 1999 - REVISED JANUARY 2009................................................................................................................................................. www.ti.com POWER-GOOD INDICATOR The TPS766xx features a power-good (PG) output that can be used to monitor the status of the regulator. The internal comparator monitors the output voltage: when the output drops to between 92% and 98% of its nominal regulated value, the PG output transistor turns on, taking the signal low. The open-drain output requires a pullup resistor. If not used, it can be left floating. PG can be used to drive power-on reset circuitry or used as a low-battery indicator. REGULATOR PROTECTION The TPS766xx PMOS-pass transistor has a built-in back diode that conducts reverse currents 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. When extended reverse voltage is anticipated, external limiting may be appropriate. The TPS766xx also features internal current limiting and thermal protection. During normal operation, the TPS766xx limits output current to approximately 0.8 A (typ). 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 +150C (typ), thermal-protection circuitry shuts it down. Once the device has cooled below +130C (typ), regulator operation resumes. POWER DISSIPATION AND JUNCTION TEMPERATURE Specified regulator operation is assured to a junction temperature of +125C; the maximum junction temperature should be restricted to +125C 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). The maximum-power-dissipation limit is determined using the following equation: (3) Where: * * * TJmax is the maximum allowable junction temperature; RJA is the thermal resistance junction-to-ambient for the package (that is, 176C/W for the 8-terminal SOIC); and TA is the ambient temperature. The regulator dissipation is calculated using: (4) Power dissipation resulting from quiescent current is negligible. Excessive power dissipation triggers the thermal protection circuit. 16 Submit Documentation Feedback Copyright (c) 1999-2009, Texas Instruments Incorporated Product Folder Link(s): TPS76615 TPS76618 TPS76625 TPS76627 TPS76628 TPS76630 TPS76633 TPS76650 TPS76601 PACKAGE OPTION ADDENDUM www.ti.com 30-Jul-2011 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/ Ball Finish MSL Peak Temp TPS76601D ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76601DG4 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76601DR ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76601DRG4 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76615D ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76615DG4 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76615DR ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76615DRG4 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76618D ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76618DG4 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76618DR ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76618DRG4 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76625D ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76625DG4 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76625DR ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76625DRG4 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76628D ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Addendum-Page 1 (3) Samples (Requires Login) PACKAGE OPTION ADDENDUM www.ti.com Orderable Device 30-Jul-2011 Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/ Ball Finish MSL Peak Temp TPS76628DG4 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76628DR ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76628DRG4 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76630D ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76630DG4 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76633D ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76633DG4 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76633DR ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76633DRG4 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76650D ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76650DG4 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76650DR ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76650DRG4 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM (3) Samples (Requires Login) (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) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Addendum-Page 2 PACKAGE OPTION ADDENDUM www.ti.com 30-Jul-2011 Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. Addendum-Page 3 PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant TPS76601DR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 TPS76615DR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 TPS76618DR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 TPS76625DR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 TPS76628DR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 TPS76633DR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 TPS76633DR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 TPS76650DR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 Pack Materials-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS76601DR SOIC D 8 2500 367.0 367.0 35.0 TPS76615DR SOIC D 8 2500 367.0 367.0 35.0 TPS76618DR SOIC D 8 2500 367.0 367.0 35.0 TPS76625DR SOIC D 8 2500 367.0 367.0 35.0 TPS76628DR SOIC D 8 2500 367.0 367.0 35.0 TPS76633DR SOIC D 8 2500 367.0 367.0 35.0 TPS76633DR SOIC D 8 2500 367.0 367.0 35.0 TPS76650DR SOIC D 8 2500 367.0 367.0 35.0 Pack Materials-Page 2 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. 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