Specification	TPS78428QDBVRQ1

Control Features	Enable
Current - Output	300 mA
Current - Quiescent (Iq)	30 µA
Current - Supply (Max) [Max]	43 µA
Grade	Automotive
Mounting Type	Surface Mount
Number of Regulators	1
Operating Temperature [Max]	150 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	1.81 mOhm
Package / Case	SC-74A, SOT-753
Protection Features	Over Current, Over Temperature
PSRR [Max]	60 dB
PSRR [Min]	30 dB
Qualification	AEC-Q100
Supplier Device Package	SOT-23-5
Voltage - Input (Max) [Max]	6 V
Voltage - Output (Min/Fixed)	2.8 V
Voltage Dropout (Max) [Max]	0.115 V

TPS784-Q1 Series

300-mA, low-IQ, high-PSRR, low-dropout (LDO) voltage regulator with high accuracy and enable

Part	Output Type	Number of Regulators	Control Features	Voltage Dropout (Max) [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Protection Features	Voltage - Input (Max) [Max]	Supplier Device Package	Qualification	Grade	Package / Case	Voltage - Output (Min/Fixed)	Output Configuration	Current - Output	PSRR [Max]	PSRR [Min]	Current - Quiescent (Iq)	Current - Supply (Max) [Max]	Output Type	Voltage - Output (Max) [Max]
Texas Instruments TPS78418BQWDRBRQ1	1.81 mOhm	1	Current Limit Enable	0.32 V	150 °C	-40 °C	Surface Mount Wettable Flank	Over Current Over Temperature UVLO	6 V	8-SON (3x3)	AEC-Q100	Automotive	8-VDFN Exposed Pad	1.8 V	Positive	300 mA	60 dB	30 dB
Texas Instruments TPS78418QDBVRQ1	1.81 mOhm	1	Enable	0.14 V	150 °C	-40 °C	Surface Mount	Over Current Over Temperature	6 V	SOT-23-5	AEC-Q100	Automotive	SC-74A SOT-753	1.8 V	Positive	300 mA	60 dB	30 dB	30 µA	43 µA
Texas Instruments TPS784085BQWDRBRQ1	1.81 mOhm	1	Current Limit Enable	0.78 V	150 °C	-40 °C	Surface Mount Wettable Flank	Over Current Over Temperature Under Voltage Lockout (UVLO)	6 V	8-SON (3x3)	AEC-Q100	Automotive	8-VDFN Exposed Pad	0.85 V	Positive	300 mA	65 dB	30 dB
Texas Instruments TPS78450QWDRBRQ1	1.81 mOhm	1	Enable	0.115 V	150 °C	-40 °C	Surface Mount Wettable Flank	Over Current Over Temperature	6 V	8-SON (3x3)	AEC-Q100	Automotive	8-VDFN Exposed Pad	5 V	Positive	300 mA	60 dB	30 dB
Texas Instruments TPS78401QWDRBRQ1		1	Enable		150 °C	-40 °C	Surface Mount Wettable Flank	Over Current Over Temperature	6 V	8-SON (3x3)	AEC-Q100	Automotive	8-VDFN Exposed Pad	1.2 V	Positive	300 mA	60 dB	30 dB			Adjustable	5.5 V
Texas Instruments TPS78428QDBVRQ1	1.81 mOhm	1	Enable	0.115 V	150 °C	-40 °C	Surface Mount	Over Current Over Temperature	6 V	SOT-23-5	AEC-Q100	Automotive	SC-74A SOT-753	2.8 V	Positive	300 mA	60 dB	30 dB	30 µA	43 µA
Texas Instruments TPS78425QDBVRQ1	1.81 mOhm	1	Enable	0.115 V	150 °C	-40 °C	Surface Mount	Over Current Over Temperature	6 V	SOT-23-5	AEC-Q100	Automotive	SC-74A SOT-753	2.5 V	Positive	300 mA	60 dB	30 dB	30 µA	43 µA
Texas Instruments TPS78408BQWDRBRQ1	1.81 mOhm	1	Current Limit Enable	0.78 V	150 °C	-40 °C	Surface Mount Wettable Flank	Over Current Over Temperature Under Voltage Lockout (UVLO)	6 V	8-SON (3x3)	AEC-Q100	Automotive	8-VDFN Exposed Pad	0.8 V	Positive	300 mA	65 dB	30 dB
Texas Instruments TPS78433QWDRBRQ1	1.81 mOhm	1	Enable	0.115 V	150 °C	-40 °C	Surface Mount Wettable Flank	Over Current Over Temperature	6 V	8-SON (3x3)	AEC-Q100	Automotive	8-VDFN Exposed Pad	3.3 V	Positive	300 mA	60 dB	30 dB
Texas Instruments TPS784105QWDRBRQ1	1.81 mOhm	1	Enable	0.775 V	150 °C	-40 °C	Surface Mount	Over Current Over Temperature	6 V	8-SON (3x3)	AEC-Q100	Automotive	8-VDFN Exposed Pad	1 V	Positive	300 mA	60 dB	30 dB

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 0.66
		10	$ 0.58
		25	$ 0.55
		100	$ 0.45
		250	$ 0.41
		500	$ 0.35
		1000	$ 0.31
	Digi-Reel®	1	$ 0.66
		10	$ 0.58
		25	$ 0.55
		100	$ 0.45
		250	$ 0.41
		500	$ 0.35
		1000	$ 0.31
	Tape & Reel (TR)	3000	$ 0.31
Texas Instruments	LARGE T&R	1	$ 0.58
		100	$ 0.45
		250	$ 0.33
		1000	$ 0.24

Description

General part information

TPS784-Q1 Series

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.