LM25149RGYR - Texas Instruments

Manufacturer Part Number

LM25149RGYR

Manufacturer

Texas Instruments

Introduction

The LM25149RGYR is a step-down switching controller used in Power Management (PMIC) applications, providing efficient voltage conversion and power control.

Product Features and Performance

Step-Down (Buck) topology

High-efficiency transistor driver

Supports output configurations positive

Capable of operating with a supply voltage ranging from 3.5V to 42V

Adjustable switching frequency from 100kHz to 2.2MHz

Maximum duty cycle of 100%

Synchronous rectification for improved efficiency

Clock synchronization capability

Product Advantages

High-flexibility with an adjustable frequency setting

Supports a wide range of input voltages

Enhanced power efficiency through synchronous rectifier

Robust thermal performance with operating temperatures from -40°C to 150°C

Key Technical Parameters

Output Type: Transistor Driver

Function: Step-Down

Topology: Buck

Number of Outputs: 1

Voltage Supply (Vcc/Vdd): 3.5V to 42V

Frequency Switching: 100kHz to 2.2MHz

Duty Cycle (Max): 100%

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

Quality and Safety Features

Built-in features such as current limit, enable, frequency control, power good, ramp, and soft start

High operation temperature range ensuring reliability under stress

Compatibility

Package / Case: 24-VFQFN Exposed Pad

Mounting Type: Surface Mount

Application Areas

Suitable for diverse electronics applications that require efficient power management and step-down voltage functions

Product Lifecycle

Currently active product status

No indication of discontinuation, ensuring long-term availability

Several Key Reasons to Choose This Product

High degree of customization with controllable switching frequency and current limit features

Versatility in handling a wide variety of input voltages and output demands

Efficient power management contributes to longer battery life and reduced heat generation

Reliable performance in extreme temperature conditions