TPS78401 Series

Automotive, 300-mA, low-IQ, high-PSRR, LDO voltage regulator with high accuracy and enable

Catalog(4 parts)

Part	Supplier Device Package	Mounting Type	Control Features	Protection Features	PSRR▲▼	PSRR▲▼	Output Type	Current - Output▲▼	Qualification	Voltage - Output (Max)▲▼	Package / Case	Number of Regulators▲▼	Voltage - Input (Max)▲▼	Grade	Output Configuration	Voltage - Output (Min/Fixed)▲▼	Operating Temperature▲▼	Operating Temperature▲▼	Voltage Dropout (Max)▲▼	Voltage Dropout (Max)▲▼	Current - Quiescent (Iq)▲▼
Texas Instruments TPS78401QWDRBRQ1 Linear Voltage Regulator IC Positive Adjustable 1 Output 300mA 8-SON (3x3)	8-SON (3x3)	Surface Mount, Wettable Flank	Enable	Over Current, Over Temperature	30 ul	60 ul	Adjustable	0.30000001192092896 A	AEC-Q100	5.5 V	8-VDFN Exposed Pad	1 ul	6 V	Automotive	Positive	1.2000000476837158 V	150 °C	-40 °C
Texas Instruments TPS78401BQWDRBRQ1 Linear Voltage Regulator IC Positive Adjustable 1 Output 300mA 8-SON (3x3)	8-SON (3x3)	Surface Mount, Wettable Flank	Current Limit, Enable	Over Current, Over Temperature, UVLO	30 ul	60 ul	Adjustable	0.30000001192092896 A	AEC-Q100	5.5 V	8-VDFN Exposed Pad	1 ul	6 V	Automotive	Positive	1.2000000476837158 V	150 °C	-40 °C	0.3199999928474426 V
Texas Instruments TPS78401QDBVRQ1 Linear Voltage Regulator IC Positive Adjustable 1 Output 300mA SOT-23-5	SOT-23-5	Surface Mount	Current Limit, Enable, Soft Start	Over Current, Over Temperature, Under Voltage Lockout (UVLO)	30 ul	60 ul	Adjustable	0.30000001192092896 A	AEC-Q100	5.5 V	SC-74A, SOT-753	1 ul	6 V	Automotive	Positive	1.2000000476837158 V	150 °C	-40 °C	0.8999999761581421 V
Texas Instruments TPS78401DBVR Linear Voltage Regulator IC Positive Adjustable 1 Output 300mA SOT-23-5	SOT-23-5	Surface Mount	Enable	Over Current, Over Temperature, UVLO	52 ul	30 ul	Adjustable	0.30000001192092896 A		5.5 V	SC-74A, SOT-753	1 ul	6 V		Positive	1.2000000476837158 V	125 °C	-40 °C		0.30000001192092896 V	0.000035000000934815034 A

Key Features

• AEC-Q100 qualified for automotive applications:Temperature grade 1: –40°C to +125°C, TADevice junction temperature: –40°C to +150°C, TJInput voltage range: 1.65 V to 6.0 VAvailable output voltages:Adjustable option: 1.2 V to 5.5 VFixed options: 0.65 V to 5.0 VOutput accuracy: 0.5% typical, 1.7% maximum50-dB PSRR out to 100 kHzLow IQ: 25 µA (typical)Ultra-low dropout:115 mV (max) at 300 mA (3.3 VOUT)Internal 500-µs soft-start time to reduce inrush currentActive output dischargeFunctional Safety-CapableDocumentation available to aid functional safety system designPackages:3-mm × 3-mm wettable flank VSON (8)5-pin SOT-23AEC-Q100 qualified for automotive applications:Temperature grade 1: –40°C to +125°C, TADevice junction temperature: –40°C to +150°C, TJInput voltage range: 1.65 V to 6.0 VAvailable output voltages:Adjustable option: 1.2 V to 5.5 VFixed options: 0.65 V to 5.0 VOutput accuracy: 0.5% typical, 1.7% maximum50-dB PSRR out to 100 kHzLow IQ: 25 µA (typical)Ultra-low dropout:115 mV (max) at 300 mA (3.3 VOUT)Internal 500-µs soft-start time to reduce inrush currentActive output dischargeFunctional Safety-CapableDocumentation available to aid functional safety system designPackages:3-mm × 3-mm wettable flank VSON (8)5-pin SOT-23

Description

The TPS784-Q1 ultra low-dropout regulator (LDO) is a small, low quiescent current LDO that can source 300 mA with excellent line and load transient performance. The low output noise and great PSRR performance make the device suitable to power sensitive analog loads. The TPS784-Q1 is a flexible device for post regulation because this device supports an input voltage range from 1.65 V to 6.0 V and offers an adjustable output range of 1.2 V to 5.5 V. The device also features fixed output voltages from 0.65 V to 5.0 V for powering common voltage rails. The TPS784-Q1 offers foldback current limit to reduce power dissipation during over current condition. The EN input helps with power sequencing requirements of the system. The internal soft-start provides a controlled start up, reducing the inrush current and allowing for lower input capacitance to be used. The TPS784-Q1 provides an active pulldown circuit to quickly discharge output loads when disabled. The TPS784-Q1 ultra low-dropout regulator (LDO) is a small, low quiescent current LDO that can source 300 mA with excellent line and load transient performance. The low output noise and great PSRR performance make the device suitable to power sensitive analog loads. The TPS784-Q1 is a flexible device for post regulation because this device supports an input voltage range from 1.65 V to 6.0 V and offers an adjustable output range of 1.2 V to 5.5 V. The device also features fixed output voltages from 0.65 V to 5.0 V for powering common voltage rails. The TPS784-Q1 offers foldback current limit to reduce power dissipation during over current condition. The EN input helps with power sequencing requirements of the system. The internal soft-start provides a controlled start up, reducing the inrush current and allowing for lower input capacitance to be used. The TPS784-Q1 provides an active pulldown circuit to quickly discharge output loads when disabled.