LMR66430R5RXBR

$2.69

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

SKU:ea84d7f2a818 Category: Voltage Regulators - DC DC Switching Regulators Brand: Texas Instruments

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Product introduction

LMR66430R5RXBR 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 LMR66430R5RXBR

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)：5V
Current - Output：3A
Frequency - Switching：-
Synchronous Rectifier：Yes
Operating Temperature：-40°C ~ 125°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 LMR66430R5RXBR

LMR66430R5RXBR

Voltage Regulators - DC DC Switching Regulators Overview

The LMR66430R5RXBR is a synchronous step-down converter from the Texas Instruments LMR664x0 series, designed for automotive applications. It features a Buck topology with an input voltage range of 3 V to 3.6 V and delivers up to 3 A output current at a fixed 5 V output. The device operates at a switching frequency of 2.2 MHz and supports a junction temperature range from -40°C to +150°C. Packaged in a VQFN-FCRLF-EP-14 format, it includes shutdown functionality and complies with RoHS standards.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Supports 42V load dump transients and 3V cold start conditions for automotive reliability
Dual-random spread spectrum (DRSS) technology minimizes electromagnetic interference peaks
Enhanced HotRod QFN package design reduces switch node ringing and component size

Voltage Regulators - DC DC Switching Regulators Applications

Advanced driver assistance systems including radar electronic control units
Infotainment systems and dashboard displays such as audio hosts and eCall modules
Body electronics and lighting control circuits

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix R5RXBR against the official datasheet to confirm pinout and thermal pad configuration. Ensure the application circuit accounts for the specified 3.6 V maximum input limit despite the family's wider capability. Confirm moisture sensitivity level handling during assembly to prevent package damage.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing for strict low standby power requirements in always-on automotive environments. The integrated compensation and high efficiency at light loads make it suitable for space-constrained designs. Consider the 2.2 MHz frequency for smaller passive components while managing EMI constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LMR664x0 family of non-isolated DC-DC converters. These devices are engineered specifically for automotive grade AEC-Q100 qualification. The family offers various current ratings and input ranges within a standardized footprint to simplify platform development across different vehicle subsystems.