TPS54429ERSAR - Texas Instruments

Manufacturer Part Number

TPS54429ERSAR

Manufacturer

Texas Instruments

Introduction

The TPS54429ERSAR is a step-down (buck) regulator that efficiently converts a higher input voltage to a lower output voltage with a synchronous rectification design for improved efficiency.

Product Features and Performance

SWIFT™ series voltage regulator

D-CAP2™ control topology for fast transient response

Eco-Mode™ for light-load efficiency

Adjustable output voltage

5A continuous output current

Synchronous rectifier integrated for higher efficiency

700kHz switching frequency

Programmable soft-start reduces inrush current

Under-voltage lockout (UVLO)

Thermal shutdown protection

Over-current protection

Product Advantages

High-efficiency power conversion

Stable performance with light and heavy loads

Reduced external components due to integrated features

Compact QFN package for space-sensitive applications

Key Technical Parameters

Output Configuration: Positive

Topology: Buck

Number of Outputs: 1

Voltage - Input (Min): 7V

Voltage - Input (Max): 18V

Voltage - Output (Min/Fixed): 0.76V

Voltage - Output (Max): 5.5V

Current - Output: 4.5A

Frequency - Switching: 700kHz

Operating Temperature: -20°C ~ 85°C (TA)

Quality and Safety Features

Over-temperature protection

Over-current and short-circuit protection

UVLO to prevent operation at unsafe voltages

Cycle-by-cycle current limit for enhanced safety

Compatibility

Surface mount 16-VQFN exposed pad

Compatible with a range of input voltages for different applications

Adjustable output voltage for versatile use

Application Areas

Computing systems

Networking equipment

Consumer electronics

Telecommunications infrastructure

Industrial applications

Product Lifecycle

Active status

Not indicated as nearing discontinuation

Several Key Reasons to Choose This Product

Energy-efficient design leading to cost savings

Robust thermal protection features ensure reliable operation

Adjustability provides design flexibility

TI's reputation for quality and long-term reliability

High output current capability suits a wide range of applications