LM5165QDRCTQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LM5165QDRCTQ1 is an automotive-grade synchronous buck converter from Texas Instruments, designed for high-voltage applications. It operates with an input voltage range of 3V to 65V and provides a fixed output voltage of 5V at up to 150mA. The device features a wide switching frequency range from 50kHz to 600kHz and maintains a low quiescent current of 10.5µA. It is housed in a VSON-EP-10 package and supports junction temperatures from -40°C to +150°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for reliability in vehicle environments.
• Synchronous rectification topology ensures high efficiency across the operating load range.
• Wide input voltage capability allows direct connection to high-voltage bus systems.

Voltage Regulators - DC DC Switching Regulators Applications

• High-voltage point-of-load regulation in automotive electronic control units
• Power distribution networks in electric and hybrid vehicles
• Industrial power management systems requiring automotive-grade components

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix Q1 indicates automotive qualification when sourcing. Confirm the DRCT designation matches the required VSON-EP-10 tape-and-reel packaging format. Ensure the 5V fixed output variant aligns with system design requirements before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for designs requiring robust high-voltage step-down conversion in automotive contexts. The fixed 5V output simplifies biasing circuits compared to adjustable variants. Consider the 150mA limit for load requirements and the VSON-EP-10 package for thermal performance in compact layouts.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM5165 family of synchronous buck converters. It shares core architecture with non-automotive versions but includes enhanced testing and documentation for automotive reliability. The family supports various output voltages and packaging options within the same functional block.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM5165XDRCTQ1 offers a 5V output option within the same automotive series. LM5165YDRCTQ1 provides a 3.3V alternative for different logic levels. Verify pin compatibility and thermal characteristics when substituting between these variants.