LM536355QRNLRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LM536355QRNLRQ1 is a synchronous step-down DC/DC converter designed for automotive applications. It features a fixed 5 V output and delivers up to 3.5 A of continuous output current. The device operates with an input voltage range from 3.9 V to 36 V and utilizes a fixed switching frequency of 400 kHz. It is housed in a 22-pin VQFN-HR package and supports junction temperatures from -40°C to +150°C. The component holds AEC-Q100 qualification and exhibits low quiescent current characteristics suitable for battery-powered systems.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous buck topology for high efficiency
• Automotive-grade reliability with extended temperature range
• Fixed output voltage configuration simplifies design

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive USB charging systems
• Infotainment power distribution
• Body control module power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'R' indicates tape and reel packaging versus 'T'. Confirm AEC-Q100 grade requirements match the target application. Check moisture sensitivity level handling procedures during assembly. Ensure the 22-VQFN-HR footprint matches the PCB layout guidelines provided in the datasheet.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this part when a fixed 5 V rail is required at 3.5 A in automotive environments. Compare against adjustable variants if voltage flexibility is needed. Consider the 400 kHz frequency for trade-offs between component size and EMI performance relative to higher-frequency alternatives.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LM53635 family of automotive synchronous buck converters. It shares the same package and basic functionality as the LM536355QRNLTQ1, differing primarily in packaging format. The family targets robust power management in harsh automotive electrical environments.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM536355QRNLTQ1 is a direct functional equivalent with identical electrical specifications. Verify that the tape-and-reel packaging variant meets production line requirements.