LMQ66430MA3RXBRQ1

$3.31

Description：IC REG BUCK ADJ/1V 3A 14VQFN
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:b3ffac10020a Category: Voltage Regulators - DC DC Switching Regulators Brand: Texas Instruments

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Product introduction

LMQ66430MA3RXBRQ1 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/1V 3A 14VQFN. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LMQ66430MA3RXBRQ1

Description：IC REG BUCK ADJ/1V 3A 14VQFN
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Adjustable (Fixed)
Number of Outputs：1
Voltage - Input (Min)：-
Voltage - Input (Max)：36V
Voltage - Output (Min/Fixed)：1V
Voltage - Output (Max)：3.3V
Current - Output：3A
Frequency - Switching：2.2MHz
Synchronous Rectifier：Yes
Operating Temperature：-40°C ~ 150°C (TJ)
Mounting Type：Surface Mount, Wettable Flank
Package / Case：14-PowerTFQFN
Supplier Device Package：14-VQFN (2.6x2.6)
Grade：-
Qualification：-

Voltage Regulators - DC DC Switching Regulators datasheet and documents for LMQ66430MA3RXBRQ1

LMQ66430MA3RXBRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LMQ66430MA3RXBRQ1 is an automotive-grade synchronous buck DC/DC converter from Texas Instruments. It operates with a wide input voltage range of 3 V to 36 V and supports up to 3 A output current. The device features a fixed 3.3 V output, a default switching frequency of 2.2 MHz, and ultra-low quiescent current of 1 uA in shutdown mode. It functions within a junction temperature range of -40°C to +150°C and utilizes a VQFN-FCRLF-EP-14 package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Supports high-voltage automotive load dump transients up to 42 V
Optimized for low electromagnetic interference using dual-random spread spectrum
Enhanced HotRod QFN package minimizes switch node ringing
Includes NC pins between critical high-voltage nodes for improved reliability

Voltage Regulators - DC DC Switching Regulators Applications

Advanced driver assistance systems radar ECUs
Infotainment and dashboard audio hosts
Body electronics and lighting systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix MA3RXBRQ1 against official datasheets to confirm pinout and thermal pad configuration. Ensure compatibility with AEC-Q100 Grade 1 requirements for your target operating temperature range. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for designs requiring robust performance under wide input voltage variations typical in automotive environments. The integrated compensation and low external component count simplify layout. Consider the 2.2 MHz frequency for balancing efficiency and filter size against noise-sensitive applications.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LMQ664x0 family of synchronous step-down converters designed specifically for automotive power management. It shares architectural similarities with the LMR664x0 series but includes enhanced features for automotive reliability and electromagnetic compatibility.