TPS79633QDCQRQ1 - Texas Instruments

Manufacturer Part Number

TPS79633QDCQRQ1

Manufacturer

Texas Instruments

Introduction

Automotive grade low dropout regulator designed for power management

Product Features and Performance

Fixed output voltage of 3.3V

Output current capacity of 1A

Low dropout voltage of 0.33V at 1A load

Quiescent current of 385 µA

Power supply rejection ratio (PSRR) of 59dB to 42dB over 100Hz to 100kHz

Integrated enable control feature

Multiple protection features including over current, over temperature, reverse polarity, UVLO

Operational temperature range from -40°C to 125°C

Product Advantages

High output voltage accuracy

Low dropout enables efficient use

Stable with low ESR output capacitors

Robust thermal performance

Designed to meet AEC-Q100 automotive standards

Key Technical Parameters

Voltage - Input (Max): 5.5V

Voltage - Output (Min/Fixed): 3.3V

Current - Output: 1A

Voltage Dropout (Max): 0.33V @ 1A

Current - Quiescent (Iq): 385 µA

PSRR: 59dB ~ 42dB (100Hz ~ 100kHz)

Grade: Automotive

Qualification: AEC-Q100

Quality and Safety Features

Over Current Protection

Over Temperature Protection

Reverse Polarity Protection

Under Voltage Lockout

Compatibility

Compatible with surface mount technology

Mounting Type: Surface Mount

Package / Case: SOT-223-6

Supplier Device Package: SOT-223-6

Application Areas

Automotive applications

Power-sensitive devices

Portable electronics

Product Lifecycle

Active status

Not reported as nearing discontinuation

Replacement and upgrade availability should be checked with the manufacturer

Several Key Reasons to Choose This Product

Optimized for automotive and industrial applications

Ensures stable operation under variable conditions and loads

Supports energy-saving and low-power operation

Meets stringent quality and reliability standards (AEC-Q100 qualified)

Available in a convenient SOT-223-6 package suitable for standard PCB manufacturing processes