LM5165XQDRCRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LM5165XQDRCRQ1 is an automotive-grade synchronous buck converter from Texas Instruments, designed for high-voltage applications. It supports an input voltage range of 3V to 65V and delivers a maximum output current of 150mA. The device integrates a fixed 1.23V reference for adjustable output voltages up to 65V. Operating with a switching frequency between 50kHz and 600kHz, it ensures efficient power conversion. The component functions within a junction temperature range of -40°C to +150°C and utilizes a 10-pin VSON package with an exposed thermal pad.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for reliability in vehicle environments.
• Integrated synchronous rectification topology enhances efficiency across the load current range.
• Wide input voltage capability accommodates various automotive bus architectures and transient conditions.

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment system power distribution
• Electronic control unit (ECU) auxiliary power supplies
• Body control module voltage regulation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'X' against the manufacturer datasheet to confirm exact marking and revision status. Ensure the ordering part number matches the required tape-and-reel quantity specifications. Confirm that the design accounts for the exposed pad thermal requirements associated with the VSON-10 package. Cross-reference the AEC-Q100 grade documentation for the specific reliability targets required by your application.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a wide input voltage range up to 65V is required for automotive systems. The 150mA output current rating suits low-to-medium power loads. Consider the 10-VSON package for space-constrained PCB layouts. Verify that the external component selection supports the desired switching frequency and output voltage settings defined by the internal feedback network.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM5165 family of synchronous buck converters. The family includes variants such as LM5165DRCR and LM5165YQDRCRQ1, which share similar electrical characteristics but may differ in output configuration or packaging. The 'Q1' suffix denotes automotive qualification, while 'X' indicates specific manufacturing or marking variations within the series.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM5165DRCR: Non-automotive grade equivalent with identical electrical performance. LM5165YQDRCRQ1: Automotive-grade variant with fixed 3.3V output instead of adjustable. LM5165XQDRCTQ1: Alternative package option within the same automotive series.