TPS54478RTET - Texas Instruments

Manufacturer Part Number

TPS54478RTET

Manufacturer

Texas Instruments

Introduction

The TPS54478RTET is a step-down voltage regulator designed for power management in various applications, offering efficiency and flexibility.

Product Features and Performance

Step-Down (Buck) topology

Adjustable output voltage

Single output channel

Synchronous rectification for improved efficiency

Supports a wide input voltage range from 2.95V to 6V

Adjustable output voltage range from 0.6V to 4.5V

Capable of delivering 4A of output current

Selectable switching frequency from 200kHz to 2MHz

Operates over a wide temperature range of -40°C to 150°C

Product Advantages

High-efficiency power conversion

Compact 16-WFQFN package suitable for space-constrained applications

Integrated synchronous rectifier minimizes external components

Flexible switching frequency allows optimization between efficiency and component size

Thermal shutdown and over-current protection enhance reliability

Key Technical Parameters

Input Voltage (Min): 2.95V

Input Voltage (Max): 6V

Output Voltage (Min/Fixed): 0.6V

Output Voltage (Max): 4.5V

Current - Output: 4A

Switching Frequency: 200kHz ~ 2MHz

Operating Temperature Range: -40°C ~ 150°C (TJ)

Quality and Safety Features

Over-current protection

Thermal shutdown

Cycle-by-cycle current limit

Compatibility

Compatible with a variety of digital and analog ICs requiring a stable power supply

Application Areas

Computing systems

Networking equipment

Industrial electronics

Telecommunications

Portable devices

Product Lifecycle

Status: Active

Not reported as nearing discontinuation

Replacements or upgrades could be available (refer to manufacturer for latest information)

Several Key Reasons to Choose This Product

Highly efficient and energy-saving for longer battery life in portable applications

Flexible design options with adjustable switching frequency

Protective features ensure long-term reliability

Suitable for a broad range of applications due to its wide input and output voltage ranges

Texas Instruments' reputation for quality and long-term availability