TPS54317RHFR - Texas Instruments

Manufacturer Part Number

TPS54317RHFR

Manufacturer

Texas Instruments

Introduction

The TPS54317RHFR is a step-down (buck) regulator that efficiently converts a higher input voltage to a lower output voltage with high accuracy and efficiency.

Product Features and Performance

Buck/Step-Down voltage converter

3A output current capability

Adjustable output voltage from 0.891V to 3.3V

Input voltage range from 3V to 6V

350kHz or 550kHz selectable switching frequency

Integrated synchronous rectifier for improved efficiency

Surface-mount technology (SMT) for compact design

Serves a wide temperature range from -40°C to 125°C

Product Advantages

High integration: built-in MOSFETs

High efficiency for power saving

Small form factor due to 24-VQFN package

Thermal shutdown and over-current protection features

Soft start capability to reduce inrush current

Key Technical Parameters

Output configuration: Positive

Topology: Buck

Voltage - Output (Min/Fixed): 0.891V

Voltage - Output (Max): 3.3V

Current - Output: 3A

Frequency - Switching: Selectable 350kHz or 550kHz

Synchronous Rectifier: Integrated

Operating Temperature Range: -40°C ~ 125°C

Quality and Safety Features

Thermal shutdown protection

Over-current protection

Under-voltage lockout (UVLO)

Cycle-by-cycle current limit

Compatibility

Compatible with a variety of capacitors and inductors subject to design requirements

Application Areas

Consumer Electronics

Computing Systems

Networking Equipment

Portable Devices

Product Lifecycle

Product status: Last Time Buy

Future replacements or upgrades may be available

Several Key Reasons to Choose This Product

High-efficiency power conversion for energy savings

Versatile input voltage range suitable for diverse applications

Optimized for space-constrained applications due to small size

Reliability in various temperature conditions

TI reputation and support for power management solutions