LM5165QDRCRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LM5165QDRCRQ1 is an automotive-grade synchronous buck converter from Texas Instruments, designed for high-voltage applications. It supports an input voltage range of 3 V to 65 V and delivers a maximum output current of 150 mA. The device features ultra-low quiescent current of 10.5 µA in standby mode. It operates with a switching frequency adjustable between 50 kHz and 600 kHz. The component is qualified under AEC-Q100 standards and functions within a junction temperature range of -40°C to +150°C. It utilizes a 10-VSON package with an exposed pad.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive-grade reliability certified under AEC-Q100 standards for harsh environment operation
• Ultra-low quiescent current design minimizes power consumption during standby conditions
• Wide input voltage capability accommodates various automotive bus architectures
• Integrated synchronous rectification improves efficiency across load ranges

Voltage Regulators - DC DC Switching Regulators Applications

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

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix Q1 indicates automotive qualification compliance when sourcing. Confirm the DRCR package variant matches the required footprint for PCB layout. Ensure the order quantity aligns with the manufacturer's standard reel specifications. Cross-reference the datasheet revision date to confirm feature consistency. Validate that the supplier provides traceability documentation for automotive grade components.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing systems requiring wide input voltage tolerance up to 65 V. Choose the LM5165QDRCRQ1 for applications needing low static current to preserve battery life. Consider the 150 mA output limit for moderate load requirements. Evaluate the thermal performance of the VSON package for the intended enclosure. Compare against non-automotive variants if environmental certification is not required.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM5165 family of synchronous buck converters. The family includes both commercial and automotive grades. The Q1 suffix distinguishes it as the automotive-qualified version. Other family members may offer different current ratings or packaging options. The series is designed for high-voltage DC-DC conversion tasks.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM5165XQDRCTQ1 offers similar automotive qualifications and electrical characteristics. LM5165YQDRCRQ1 provides a fixed 3.3 V output option within the same family. LM5165DRCR serves as the commercial grade equivalent without automotive certification.