LM61440AASQRJRRQ1

$3.38

Description：IC REG BUCK ADJ 4A 14VQFN
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:9ca45846ff84 Category: Voltage Regulators - DC DC Switching Regulators Brand: Texas Instruments

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Product introduction

LM61440AASQRJRRQ1 is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC REG BUCK ADJ 4A 14VQFN. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LM61440AASQRJRRQ1

Description：IC REG BUCK ADJ 4A 14VQFN
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：3V
Voltage - Input (Max)：36V
Voltage - Output (Min/Fixed)：1V
Voltage - Output (Max)：34V
Current - Output：4A
Frequency - Switching：200kHz ~ 2.2MHz
Synchronous Rectifier：Yes
Operating Temperature：-40°C ~ 150°C (TJ)
Mounting Type：Surface Mount, Wettable Flank
Package / Case：14-PowerVFQFN
Supplier Device Package：14-VQFN-HR (4x3.5)
Grade：Automotive
Qualification：AEC-Q100

Voltage Regulators - DC DC Switching Regulators datasheet and documents for LM61440AASQRJRRQ1

LM61440AASQRJRRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LM61440AASQRJRRQ1 is an automotive-grade synchronous step-down DC-DC converter manufactured by Texas Instruments. It operates with an input voltage range of 3 V to 36 V and delivers a maximum output current of 4 A. The device supports adjustable switching frequencies from 200 kHz to 2.2 MHz and provides an adjustable output voltage between 1 V and 34 V. It features a low quiescent current of 600 nA and functions within a temperature range of -40°C to +150°C. The component is housed in a 14-pin VQFN-HR package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrated synchronous buck topology for efficient power conversion
Low-noise operation suitable for sensitive analog loads
Automotive qualification compliant with AEC-Q100 standards
Wide input voltage range supporting various bus architectures

Voltage Regulators - DC DC Switching Regulators Applications

Infotainment systems in automotive environments
Telematics control units
Body control modules
Sensor interface circuits requiring clean power rails

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'Q1' confirms automotive grade status against the official datasheet. Ensure the 'AA' and 'SJRR' package markings match the required VQFN-HR-14 footprint. Confirm RoHS compliance details directly from the manufacturer's documentation before finalizing procurement specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing for automotive applications requiring high efficiency and low electromagnetic interference. The wide input voltage range accommodates cold crank conditions typical in vehicle electrical systems. Consider the thermal performance of the VQFN-HR package for PCB layout optimization under high load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM61440 family of low-noise synchronous buck converters designed specifically for automotive electronics. It shares functional similarities with other members like the LM61440AANRJRR but differs in packaging and automotive qualification. The series emphasizes noise reduction for audio and communication subsystems.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include LM61440AASQRJRR for non-automotive use or LMQ62440APPQRJRRQ1 for higher current requirements. Verify pin compatibility and thermal characteristics before swapping components in existing designs.

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Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.