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TPS79325DBVRM3Q1

TITPS79325DBVRM3Q1

Texas Instruments
Linear Voltage Regulator IC Positive Fixed 1 Output 200mA SOT-23-5
Active3,000 in stock
Datasheet Digi-Key Compare Prices

Overview

The TPS79325DBVRM3Q1 is an AEC-Q100 qualified, 200mA low-dropout (LDO) linear regulator providing a fixed 2.5V output. Designed for automotive applications, it features high Power Supply Rejection Ratio (PSRR) and low noise performance in a compact SOT-23-5 package. The device includes integrated protection features such as undervoltage lockout, thermal shutdown, and foldback current limiting.

Why Choose This Part

This regulator offers an exceptionally low dropout of 112mV at full load and maintains high PSRR of 39dB even at 100kHz. The inclusion of a 500us internal soft-start reduces inrush current during startup, while the active discharge feature ensures the output is quickly pulled to ground when the device is disabled.

Applications

Automotive ADAS Sensors
Providing clean 2.5V power to sensitive CMOS image sensors and radar processing units where low noise is critical.
RF Telematics Modules
Supplying power to local oscillators and RF front-ends that require high PSRR to minimize phase noise.
In-Vehicle Infotainment
Regulating power for audio processors and digital-to-analog converters where power supply ripple must be suppressed.

Key Specifications

PSRR 70dB ~ 39dB (100Hz ~ 100kHz)
Output Type Fixed
Mounting Type Surface Mount
Package / Case SC-74A, SOT-753
Control Features Enable
Current - Output 200mA
Protection Features Over Current, Over Temperature, Under Voltage Lockout (UVLO)
Number of Regulators 1
Output Configuration Positive
Operating Temperature -40degC ~ 125degC (TA)
Voltage - Input (Max) 5.5V
Current - Supply (Max) 1 mA
Supplier Device Package SOT-23-5
Current - Quiescent (Iq) 1 mA
Voltage - Output (Min/Fixed) 2.5V

Getting Started

To ensure stability, place a 2.2uF ceramic output capacitor as close to the VOUT and GND pins as possible. For automotive designs, follow standard PCB layout practices for SOT-23 packages to manage thermal dissipation, as the operating ambient temperature range is -40C to 125C.

TPS79325 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number PSRR Protection Features Temp Range Current - Quiescent (Iq) Stock
TPS79325DBVRM3Q1 (this part) 100Hz Over Current, Over.. -40degC ~ 125degC .. 1 mA 3,000
TPS79325DBVR 100Hz Over Current, Over.. -40degC ~ 150degC 220 uA 20,835
TPS79325DBVRQ1 100Hz Over Current, Over.. -40degC ~ 125degC 220 uA 6,807
TPS79325DBVRM3 — Over Current, Over.. -40degC ~ 125degC .. 1 mA 3,000