LMQ66420MC3RXBRQ1

$3.00

Description：IC REG BUCK ADJ/1V 2A 14VQFN
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:d556e78b6974 Category: Voltage Regulators - DC DC Switching Regulators Brand: Texas Instruments

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Product introduction

LMQ66420MC3RXBRQ1 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 2A 14VQFN. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LMQ66420MC3RXBRQ1

Description：IC REG BUCK ADJ/1V 2A 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)：3V
Voltage - Input (Max)：36V
Voltage - Output (Min/Fixed)：1V (3.3V)
Voltage - Output (Max)：18V
Current - Output：2A
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：Automotive
Qualification：AEC-Q100

Voltage Regulators - DC DC Switching Regulators datasheet and documents for LMQ66420MC3RXBRQ1

LMQ66420MC3RXBRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LMQ66420MC3RXBRQ1 is an automotive-grade synchronous step-down converter from Texas Instruments. It supports input voltages up to 36 V and delivers a continuous output current of 2 A. The device features a low quiescent current of 1.5 µA and operates within a junction temperature range of -40°C to 150°C. It utilizes a VQFN-FCRLF package with 14 pins, designed for high efficiency and low electromagnetic interference in demanding automotive environments.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Automotive qualification compliant for reliable operation in vehicle systems
Low electromagnetic interference design for sensitive electronic applications
High efficiency synchronous buck topology reduces power loss
Extended thermal performance supporting high ambient temperatures

Voltage Regulators - DC DC Switching Regulators Applications

Automotive infotainment system power distribution
Telematics control unit voltage regulation
Body control module power supply conditioning
ADAS sensor interface power management

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including suffixes against official Texas Instruments documentation to ensure correct package type and temperature grade. Confirm RoHS compliance status and automotive qualification requirements specific to your application before procurement. Cross-reference datasheet revisions to ensure compatibility with existing design specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when automotive reliability and low EMI are critical constraints. Ensure input voltage does not exceed 36 V limits. Verify that the 2 A output current meets load requirements under all operating conditions. Consider thermal dissipation capabilities within the VQFN-FCRLF package for the intended enclosure environment.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LMQ series of automotive power management integrated circuits. It complements other buck converters in the portfolio by offering optimized EMI performance. The series targets applications requiring robust voltage regulation in harsh automotive electrical environments while maintaining compact form factors.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult Texas Instruments official substitution guides for verified alternatives. Do not assume pin-to-pin compatibility with non-automotive grade parts or different series without explicit manufacturer confirmation. Verify functional equivalence regarding switching frequency and control loop stability.

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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.