LM53601LQDSXRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LM53601LQDSXRQ1 is an automotive-grade synchronous buck converter from Texas Instruments, designed for high-efficiency power management in demanding environments. It operates with a wide input voltage range of 3.5V to 36V and delivers a fixed 5V output at up to 1A. The device features a 2.1MHz switching frequency and low quiescent current of 23µA. It is AEC-Q100 qualified with a junction temperature range of -40°C to +150°C, housed in a compact 10-WSON package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for reliability
• Wide input voltage capability supporting transient loads up to 42V
• High thermal performance allowing operation at junction temperatures up to 150°C
• Compact footprint enabled by integrated synchronous rectification

Voltage Regulators - DC DC Switching Regulators Applications

• Advanced Driver Assistance Systems (ADAS)
• Automotive infotainment systems
• Body electronics modules
• Industrial control systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'LQ' against the manufacturer datasheet to confirm the fixed 5V output configuration. Ensure the component meets the required AEC-Q100 Grade 1 specifications for your target application environment. Cross-reference the 10-WSON package dimensions with your PCB layout constraints before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V rail is required within a 3.5V to 36V input window. The 2.1MHz frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the 150°C junction rating for high-temperature zones where standard 125°C parts may fail. Verify that the 1A continuous current meets the load requirements without excessive thermal derating.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM53601-Q1 family of synchronous buck converters. It shares architectural similarities with other members like the LM53600-Q1 but differs in output configuration and current capabilities. The series is optimized for automotive applications requiring robust performance and small solution size.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for LM53601NQDSXTQ1 if a 3.3V output is needed instead. For adjustable output variants, consider LM53601AQDSXTQ1. Ensure any substitute maintains the same WSON-10 package and AEC-Q100 qualification level.