LMQ66410R5RXBR

$2.22

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

SKU:c8bef0727a24 Category: Voltage Regulators - DC DC Switching Regulators Brand: Texas Instruments

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Product introduction

LMQ66410R5RXBR 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 1A 14VQFN. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LMQ66410R5RXBR

Description：IC REG BUCK ADJ/1V 1A 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 (5V)
Voltage - Output (Max)：18V
Current - Output：1A
Frequency - Switching：200kHz ~ 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 LMQ66410R5RXBR

LMQ66410R5RXBR

Voltage Regulators - DC DC Switching Regulators Overview

The LMQ66410R5RXBR is an automotive-grade synchronous step-down converter from Texas Instruments. It operates with a wide input voltage range of 3 V to 36 V and supports transient voltages up to 42 V. The device delivers a fixed 5 V output at a maximum current of 1 A. It utilizes a buck topology within a VQFN-FCRLF-EP-14 package. Key electrical parameters include a switching frequency of 400 kHz, a minimum operating temperature of -40°C, and a maximum junction temperature of +150°C. The component features low quiescent current and is designed for high efficiency in light-load conditions.

Voltage Regulators - DC DC Switching Regulators Feature Summary

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

Voltage Regulators - DC DC Switching Regulators Applications

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

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix R5 against official datasheets to confirm the fixed 5 V output configuration. Ensure compatibility with AEC-Q100 Grade 1 requirements for your target temperature range. Confirm package details match the VQFN-FCRLF-EP-14 specification. Cross-reference ordering part numbers with manufacturer documentation to avoid substitution errors.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for applications requiring a compact solution with low standby power consumption. The fixed 5 V output simplifies design by eliminating external feedback resistors. Consider the 400 kHz switching frequency for balancing component size and efficiency. Verify that the 1 A output current meets the peak load requirements of the downstream circuitry.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LMQ66410 series, which is part of TI's portfolio of automotive synchronous buck converters. The series is engineered for constant-on-time automotive applications requiring low quiescent current. It shares architectural similarities with other members like the LMQ66410MA5RXBRQ1 but differs in output voltage configuration and specific suffix coding.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LMQ66410MA5RXBRQ1 offers similar specifications with a fixed 5 V output. LMR664x0 devices provide comparable performance but may differ in package or current rating. Verify pinout and thermal characteristics before substituting.

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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.