TPS745-Q1 Series

500-mA, low-IQ, high-accuracy, adjustable ultra-low-dropout voltage regulator with power good

Catalog

500-mA, low-IQ, high-accuracy, adjustable ultra-low-dropout voltage regulator with power good

Part	Current - Output	Voltage - Input (Max) [Max]	Current - Quiescent (Iq)	Operating Temperature [Min]	Operating Temperature [Max]	Output Type	Control Features	Voltage - Output (Min/Fixed)	Output Configuration	Protection Features	Number of Regulators	Supplier Device Package	Voltage - Output (Max) [Max]	PSRR [Max]	PSRR [Min]	Voltage Dropout (Max) [Max]	Mounting Type	Qualification	Output Type	Grade	Package / Case
Texas Instruments TPS74501PDRVT	500 mA	6 V	31 µA	-40 °C	125 ¯C	Adjustable	Enable	0.55 V	Positive	Over Temperature Short Circuit Soft Start	1	6-WSON (2x2)	5.5 V	50 dB	30 dB	0.88 V	Surface Mount
Texas Instruments TPS745115PQWDRBRQ1	500 mA	6 V	36 µA	-40 °C	125 °C		Enable Power Good	1.15 V	Positive	Over Current Over Temperature Under Voltage Lockout (UVLO)	1	8-SON (3x3)		57 dB	35 dB	0.6 V	Surface Mount Wettable Flank	AEC-Q100	1.81 mOhm	Automotive	8-VDFN Exposed Pad
Texas Instruments TPS74501PBQWDRVRQ1	500 mA	6 V	36 µA	-40 °C	125 ¯C	Adjustable	Enable Power Good	0.55 V	Positive	Over Current Over Temperature Short Circuit Under Voltage Lockout (UVLO)	1	6-WSON (2x2)	5.5 V	57 dB	35 dB	0.72 V	Surface Mount	AEC-Q100		Automotive
Texas Instruments TPS74528PQWDRVRQ1	500 mA	6 V	36 µA	-40 °C	125 ¯C		Enable Power Good	2.8 V	Positive	Over Current Over Temperature Short Circuit Under Voltage Lockout (UVLO)	1	6-WSON (2x2)		57 dB	35 dB	0.105 V	Surface Mount	AEC-Q100	1.81 mOhm	Automotive
Texas Instruments TPS74501PDRVR	500 mA	6 V	35 µA	-40 °C	125 ¯C	Adjustable	Enable Power Good	0.55 V	Positive	Over Current Over Temperature Under Voltage Lockout (UVLO)	1	6-WSON (2x2)	5.5 V	50 dB	30 dB	0.88 V	Surface Mount
Texas Instruments TPS74522PQWDRVRQ1	500 mA	6 V	36 µA	-40 °C	125 ¯C		Enable Power Good	2.2 V	Positive	Over Current Over Temperature Short Circuit Under Voltage Lockout (UVLO)	1	6-WSON (2x2)		57 dB	35 dB	0.14 V	Surface Mount	AEC-Q100	1.81 mOhm	Automotive
Texas Instruments TPS74512PQWDRVRQ1	500 mA	6 V	36 µA	-40 °C	125 ¯C		Enable Power Good	1.2 V	Positive	Over Current Over Temperature Short Circuit Under Voltage Lockout (UVLO)	1	6-WSON (2x2)		57 dB	35 dB	0.285 V	Surface Mount	AEC-Q100	1.81 mOhm	Automotive
Texas Instruments TPS74501PCQWDRVRQ1	500 mA	6 V	36 µA	-40 °C	125 °C	Adjustable	Enable	0.55 V	Positive	Over Current Over Temperature Under Voltage Lockout (UVLO)	1	6-WSON (2x2)	5.5 V	57 dB	35 dB	0.91 V	Surface Mount	AEC-Q100		Automotive
Texas Instruments TPS74550PQWDRVRQ1	500 mA	6 V	36 µA	-40 °C	125 ¯C		Enable Power Good	5 V	Positive	Over Current Over Temperature Short Circuit Under Voltage Lockout (UVLO)	1	6-WSON (2x2)		57 dB	35 dB	0.095 V	Surface Mount	AEC-Q100	1.81 mOhm	Automotive
Texas Instruments TPS74533PCQWDRVRQ1	500 mA	6 V	36 µA	-40 °C	125 °C		Enable	3.3 V	Positive	Over Current Over Temperature Under Voltage Lockout (UVLO)	1	6-WSON (2x2)		57 dB	35 dB	0.16 V	Surface Mount	AEC-Q100	1.81 mOhm	Automotive

Catalog

500-mA, low-IQ, high-accuracy, adjustable ultra-low-dropout voltage regulator with power good

Key Features

• AEC-Q100 qualified for automotive applications:Temperature grade 1: –40°C to +125°C, TADevice junction temperature: –40°C to 150°CPackage:2-mm × 2-mm wettable flank WSON3-mm × 3-mm wettable flank VSONInput voltage range: 1.5 V to 6.0 VOutput voltage range:Fixed option: 0.65 V to 5.0 VAdjustable option: 0.55 V to 5.5 VHigh PSRR: 45 dB at 100 kHzOutput accuracy: ±0.85% (25°C), ±1.5% maximumPower-good output options:Open-drain and push-pullUltra-low dropout:160 mV (max) at 500 mA (3.3 VOUT)Stable with a 1-µF or larger capacitorLow IQ: 25 µA (typical), 1.5 µA (shutdown)Active output dischargeFunctional Safety-CapableDocumentation available to aid functional safety system designLow thermal resistance:DRV (6-pin WSON), RθJA= 80.3°C/WDRB (8-pin VSON), RθJA= 55.5°C/WAEC-Q100 qualified for automotive applications:Temperature grade 1: –40°C to +125°C, TADevice junction temperature: –40°C to 150°CPackage:2-mm × 2-mm wettable flank WSON3-mm × 3-mm wettable flank VSONInput voltage range: 1.5 V to 6.0 VOutput voltage range:Fixed option: 0.65 V to 5.0 VAdjustable option: 0.55 V to 5.5 VHigh PSRR: 45 dB at 100 kHzOutput accuracy: ±0.85% (25°C), ±1.5% maximumPower-good output options:Open-drain and push-pullUltra-low dropout:160 mV (max) at 500 mA (3.3 VOUT)Stable with a 1-µF or larger capacitorLow IQ: 25 µA (typical), 1.5 µA (shutdown)Active output dischargeFunctional Safety-CapableDocumentation available to aid functional safety system designLow thermal resistance:DRV (6-pin WSON), RθJA= 80.3°C/WDRB (8-pin VSON), RθJA= 55.5°C/W

Description

The TPS745 is an adjustable 500-mA low-dropout (LDO) regulator with power-good functionality. This device is available in a small, 6-pin, 2-mm × 2-mm WSON package and consumes very low quiescent current and provides fast line and load transient performance. The TPS745 features an ultra-low dropout of 130 mV at 500 mA that can help improve the power efficiency of the system. The TPS745 is optimized for a wide variety of applications by supporting an input voltage range from 1.5 V to 6.0 V and an externally adjustable output range of 0.55 V to 5.5 V. The low output voltage enables this LDO to power the modern microcontrollers with lower core voltages. The TPS745 has a power-good (PG) output that monitors the voltage at the feedback pin to indicate the status of the output voltage. The EN input and PG output can be used for the sequencing multiple power sources in the system. The TPS745 is stable with small ceramic output capacitors, allowing for a small overall solution size. A precision band-gap and error amplifier provides high accuracy of 0.7% (max) at 25°C and 1% (max) over temperature (85ºC). This device includes integrated thermal shutdown, current limit, and undervoltage lockout (UVLO) features. The TPS745 has an internal foldback current limit that helps reduce the thermal dissipation during short-circuit events. The TPS745 is an adjustable 500-mA low-dropout (LDO) regulator with power-good functionality. This device is available in a small, 6-pin, 2-mm × 2-mm WSON package and consumes very low quiescent current and provides fast line and load transient performance. The TPS745 features an ultra-low dropout of 130 mV at 500 mA that can help improve the power efficiency of the system. The TPS745 is optimized for a wide variety of applications by supporting an input voltage range from 1.5 V to 6.0 V and an externally adjustable output range of 0.55 V to 5.5 V. The low output voltage enables this LDO to power the modern microcontrollers with lower core voltages. The TPS745 has a power-good (PG) output that monitors the voltage at the feedback pin to indicate the status of the output voltage. The EN input and PG output can be used for the sequencing multiple power sources in the system. The TPS745 is stable with small ceramic output capacitors, allowing for a small overall solution size. A precision band-gap and error amplifier provides high accuracy of 0.7% (max) at 25°C and 1% (max) over temperature (85ºC). This device includes integrated thermal shutdown, current limit, and undervoltage lockout (UVLO) features. The TPS745 has an internal foldback current limit that helps reduce the thermal dissipation during short-circuit events.