LM5146QRGYTQ1 - Texas Instruments

Manufacturer Part Number

LM5146QRGYTQ1

Manufacturer

Texas Instruments

Introduction

Automotive qualified DC/DC step-down switching regulator

Product Features and Performance

High efficiency synchronous buck regulator

Adjustable output voltage

Supports a wide input voltage range from 5.5V to 100V

High-frequency switching capability from 100kHz to 1MHz

Maximum duty cycle of 99%

Incorporates synchronous rectification for better efficiency

Provides clock synchronization feature

Product Advantages

Highly suitable for automotive applications due to AEC-Q100 qualification

High voltage capability supports a variety of input sources

Flexible switching frequency allows for optimization of size and efficiency

Thermal performance is enhanced by a 20-VFQFN package with exposed pad

Key Technical Parameters

Output Type: Adjustable

Function: Step-Down

Output Configuration: Positive

Topology: Buck

Number of Outputs: 1

Output Phases: 1

Voltage - Supply (Vcc/Vdd): 5.5V to 100V

Frequency - Switching: 100kHz to 1MHz

Duty Cycle (Max): 99%

Synchronous Rectifier: Yes

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

Quality and Safety Features

Meets AEC-Q100 standards for automotive reliability

Compatibility

Compatible with surface mount technology

Mounting Type: Surface Mount, Wettable Flank

Application Areas

Automotive power supplies

Industrial power systems

Telecommunications equipment

Aftermarket automotive installations

Product Lifecycle

Status: Active

Product is not nearing discontinuation

Replacements or upgrades are available as needed

Several Key Reasons to Choose This Product

Designed for the demanding conditions of automotive applications

Supports wide input voltage range accommodating various power systems

High-frequency switching for optimized efficiency and reduced component size

AEC-Q100 qualification signifies high reliability and quality standards

Wettable flank package allows for better inspection during the manufacturing process