LMQ66430MC5RXBRQ1

$3.31

Description：IC REG BUCK ADJ/5V 3A 14VQFN
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:b0e81fdb8af0 Category: Voltage Regulators - DC DC Switching Regulators Brand: Texas Instruments

Consult the customer manager about the wholesale price.

consultation hotline：86-132-6715-2157

email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.

Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.

Product introduction

LMQ66430MC5RXBRQ1 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/5V 3A 14VQFN. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LMQ66430MC5RXBRQ1

Description：IC REG BUCK ADJ/5V 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)：2.7V
Voltage - Input (Max)：36V
Voltage - Output (Min/Fixed)：1V (5V)
Voltage - Output (Max)：18V
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：Automotive
Qualification：AEC-Q100

Voltage Regulators - DC DC Switching Regulators datasheet and documents for LMQ66430MC5RXBRQ1

LMQ66430MC5RXBRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LMQ66430MC5RXBRQ1 is an automotive-grade synchronous step-down DC/DC converter from Texas Instruments. It supports a wide input voltage range of 3V to 36V and delivers up to 3A of output current. The device features a fixed 5V output configuration with a default switching frequency of 2.2MHz. It operates within a junction temperature range of -40°C to +150°C and utilizes a 14-pin VQFN-FCRLF-EP package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Automotive-grade reliability designed for demanding power management applications
Wide input voltage capability supporting 3V to 36V sources
High-efficiency synchronous rectification architecture
Compact solution size utilizing enhanced HotRod QFN packaging

Voltage Regulators - DC DC Switching Regulators Applications

Automotive infotainment systems
Telematics control units
Body electronics power distribution
ADAS sensor power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'MC5' confirms the fixed 5V output variant, as other suffixes may indicate adjustable outputs or different frequencies. Ensure the component meets AEC-Q100 standards required for your specific automotive tier. Confirm the 14-pin VQFN footprint matches your PCB layout constraints before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this part when a robust 3A buck converter is needed for 36V automotive systems. The fixed 5V output simplifies design compared to adjustable variants. Consider the 2.2MHz switching frequency for smaller passive components. Verify thermal performance requirements given the high junction temperature rating of 150°C.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LMQ66430-Q1 family of low-EMI synchronous buck converters. It shares architectural similarities with the LMR66430 but includes automotive qualification enhancements. The series is designed to minimize electromagnetic interference while maintaining high efficiency across varying load conditions in vehicle environments.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LMQ66430MC3RXBRQ1 offers similar specifications but provides a fixed 3.3V output instead of 5V. LMQ66410MA5RXBRQ1 is a lower-current 1A alternative within the same automotive family. Direct pin-to-pin replacement requires verifying output voltage compatibility.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

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.