TPS51117RGYR - Texas Instruments

Manufacturer Part Number

TPS51117RGYR

Manufacturer

Texas Instruments

Introduction

The TPS51117RGYR is a voltage regulator specifically designed for high-efficiency, low-component-count, non-isolated power supplies.

Product Features and Performance

Synchronous step-down controller

D-CAP™ control mode for fast transient response

Voltage Mode with Input Feed-Forward

5V to 5.5V supply voltage

Supports high efficiency point-of-load supply designs

Drives N-Channel MOSFET switches

Adaptive On-Time control architecture

100% duty cycle low dropout operation

Product Advantages

Reduced external component count due to integrated MOSFET drivers

High efficiency enabled by synchronous rectification

Stable with low ESR ceramic output capacitors

Provides fast transient response

Key Technical Parameters

Output Type: Transistor Driver

Function: Step-Down

Output Configuration: Positive

Topology: Buck (Single output step-down)

Output Phases: 1

Frequency - Switching: 600 kHz

Control Features: Enable, On Time Control, Power Good

Operating Temperature: -40°C to 85°C

Quality and Safety Features

Thermal shutdown and over-voltage protection

UL recognized component status

Complies with industry standards for quality and safety

Compatibility

Compatible with a broad range of MOSFETs

Designed to work with low ESR output capacitors, including ceramic types, for better performance

Application Areas

Non-isolated Point-of-Load supplies

Low-Voltage, High-Density Power Systems

Desktop, Notebook, and Netbooks

Graphics Card VDDC and Memory Power Supplies

Consumer Electronics Power Supplies

Product Lifecycle

Product Status: Active

Not currently nearing discontinuation

Availability of replacements or upgrades: The TPS51117 is part of a family of devices, which may offer suitable upgrade paths as technology evolves

Several Key Reasons to Choose This Product

Fast transient response suitable for high-performance applications

High efficiency and energy-saving capabilities

Low dropout operation enriches the device usability in various system power designs

Easy integration facilitated by surface mount packaging and minimal additional component need

Reliable operation further supported by thermal and over-voltage protection safeguards

Widespread application suitability from consumer electronics to computing systems

Ongoing product support and relative longevity in the market indicates stability and reliability in sourcing.