TPS745115 Series

Automotive 500-mA, low-IQ, high-PSRR, low-dropout (LDO) voltage regulator with power good

Catalog

Automotive 500-mA, low-IQ, high-PSRR, low-dropout (LDO) voltage regulator with power good

Part	Mounting Type	Control Features	Supplier Device Package	PSRR [Min]	PSRR [Max]	Number of Regulators	Operating Temperature [Max]	Operating Temperature [Min]	Output Configuration	Qualification	Output Type	Grade	Protection Features	Package / Case	Voltage - Input (Max) [Max]	Voltage - Output (Min/Fixed)	Voltage Dropout (Max) [Max]	Current - Output	Current - Quiescent (Iq)
Texas Instruments TPS745115PQWDRBRQ1	Surface Mount Wettable Flank	Enable Power Good	8-SON (3x3)	35 dB	57 dB	1	125 °C	-40 °C	Positive	AEC-Q100	1.81 mOhm	Automotive	Over Current Over Temperature Under Voltage Lockout (UVLO)	8-VDFN Exposed Pad	6 V	1.15 V	0.6 V	500 mA	36 µA

Catalog

Automotive 500-mA, low-IQ, high-PSRR, low-dropout (LDO) 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-Q1 is a 500-mA ultra-low-dropout regulator (LDO) with power-good functionality. This device is available in a small 6-pin, 2-mm × 2-mm WSON package and a small 8-pin, 3-mm × 3-mm VSON package with wettable flanks to facilitate optical inspection. The TPS745-Q1 consumes low quiescent current and provides fast line and load transient performance. The TPS745-Q1 is a flexible device for post-regulation 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 device also features fixed output voltages for powering common voltage rails. The TPS745-Q1 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 sequencing multiple power supplies in the system. The TPS745-Q1 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 ±0.85% (max) at 25°C and ±1.5% (max) over temperature. This device includes integrated thermal shutdown, current limit, and undervoltage lockout (UVLO) features. The TPS745-Q1 has an internal foldback current limit that helps reduce the thermal dissipation during short-circuit events. The TPS745-Q1 is a 500-mA ultra-low-dropout regulator (LDO) with power-good functionality. This device is available in a small 6-pin, 2-mm × 2-mm WSON package and a small 8-pin, 3-mm × 3-mm VSON package with wettable flanks to facilitate optical inspection. The TPS745-Q1 consumes low quiescent current and provides fast line and load transient performance. The TPS745-Q1 is a flexible device for post-regulation 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 device also features fixed output voltages for powering common voltage rails. The TPS745-Q1 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 sequencing multiple power supplies in the system. The TPS745-Q1 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 ±0.85% (max) at 25°C and ±1.5% (max) over temperature. This device includes integrated thermal shutdown, current limit, and undervoltage lockout (UVLO) features. The TPS745-Q1 has an internal foldback current limit that helps reduce the thermal dissipation during short-circuit events.