TPS73643DBVR - Texas Instruments

Manufacturer Part Number

TPS73643DBVR

Manufacturer

Texas Instruments

Introduction

TPS73643DBVR is a fixed-output, low-dropout linear regulator designed for power-sensitive applications.

Product Features and Performance

Positive output configuration

Fixed output type

Single regulator

Maximum input voltage of 5.5V

Output voltage set to 4.3V

Dropout voltage of 0.2V at 400mA load

400mA output current capacity

Quiescent current of 550 µA

Maximum supply current of 1 mA

Power supply rejection ratio ranges from 58dB to 37dB between 100Hz to 10kHz

Enable control feature

Product Advantages

Low dropout voltage for efficient operation

Good PSRR for stable output across frequencies

Low quiescent current for power-saving applications

Comprehensive protection features for reliability

Key Technical Parameters

Output Voltage (Min/Fixed): 4.3V

Current - Output: 400mA

Voltage Dropout (Max): 0.2V

PSRR: 58dB ~ 37dB

Operating Temperature: -40°C to 125°C

Quality and Safety Features

Protection against over current

Protection against over temperature

Reverse polarity protection

Compatibility

Surface Mount technology compatible

Housed in SC-74A, SOT-753 footprint

Uses SOT-23-5 package

Application Areas

Portable and battery-powered electronics

Microcontroller power supply

Analog and digital circuits requiring precise voltage

Product Lifecycle

Product Status: Obsolete

Potential availability of replacements or upgrades is subject to Texas Instruments' product management

Several Key Reasons to Choose This Product

Regulation accuracy suitable for sensitive electronic components

Low power consumption for battery longevity

Robust protection features for enhanced safety

High-temperature operational capability for industrial use

Compact package for space-constrained applications