LM61440AASQRJRRQ1 - Texas Instruments

Manufacturer Part Number

LM61440AASQRJRRQ1

Manufacturer

Texas Instruments

Introduction

The LM61440AASQRJRRQ1 is a step-down (buck) voltage regulator designed for automotive applications.

Product Features and Performance

Adjustable output voltage ranging from 1V to 34V

Supports input voltages between 3V and 36V

4A current output capability

Flexible switching frequency from 200kHz to 2.2MHz

Synchronous rectification for improved efficiency

Capable of operating at temperatures from -40°C to 150°C

Product Advantages

High-efficiency power conversion

Robust design suitable for harsh automotive environments

Versatility with adjustable output values

Low RDS(ON) for better thermal performance

Compliance with AEC-Q100 automotive standards

Key Technical Parameters

Voltage - Input (Min): 3V

Voltage - Input (Max): 36V

Voltage - Output (Min/Fixed): 1V

Voltage - Output (Max): 34V

Current - Output: 4A

Frequency - Switching: 200kHz to 2.2MHz

Synchronous Rectifier: Yes

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

Quality and Safety Features

AEC-Q100 qualified

Built-in thermal shutdown

Under-voltage lockout and over-current protection

Quality performance in extended temperature range

Compatibility

Mounting Type: Surface Mount, Wettable Flank

Package / Case: 14-VFQFN

Application Areas

Automotive power systems

Infotainment and telematics

Advanced driver assistance systems (ADAS)

Power supplies for automotive sensors and ECUs

Product Lifecycle

Product Status: Active

Ongoing support with no near-term discontinuation

Reasons to Choose This Product

Efficient power conversion reducing energy loss

Suitable for a wide range of input and output voltages

High-reliability design for automotive use

Flexible switching frequencies accommodate various applications

Thermal protection features for device safety

Easy integration with surface mount, wettable flank package

Meets industry standards for automotive qualification