LM53601MQUDSXRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LM53601MQUDSXRQ1 is a synchronous step-down converter designed for automotive applications. It operates with an input voltage range of 3.5V to 36V, supporting transient voltages up to 42V. The device delivers a maximum output current of 1A at a fixed switching frequency of 2.1MHz. It features low quiescent current of 23µA and shutdown current of 1.8µA. The component is housed in a 10-WSON package and supports adjustable output voltages from 3.3V to 6V. It is qualified under AEC-Q100 standards with a junction temperature range of -40°C to 150°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Supports wide input voltage range up to 36V with 42V transient tolerance
• Integrated synchronous rectification for high efficiency
• Low static power consumption with 23µA quiescent current
• Extended junction temperature rating up to 150°C

Voltage Regulators - DC DC Switching Regulators Applications

• Advanced driver assistance systems (ADAS)
• Automotive infotainment systems
• Body control modules
• Telematics units

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'MQU' against the official Texas Instruments datasheet to confirm pinout and electrical characteristics match the required design specifications. Ensure the ordering part number corresponds to the correct tape and reel packaging configuration as defined in the manufacturer's documentation. Cross-reference the AEC-Q100 qualification level with project requirements.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing automotive DC-DC converters requiring a 1A output capability within a compact footprint. The 2.1MHz switching frequency allows for smaller external passive components compared to lower-frequency alternatives. Consider the 150°C junction temperature rating for high-thermal-stress environments where standard 125°C limits may be insufficient.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM5360x-Q1 family of synchronous buck converters from Texas Instruments. The family shares common architectural features including current-mode control and protection mechanisms. Variants within the series differ primarily in output current ratings and fixed versus adjustable output configurations, all targeting robust automotive power management solutions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM53601AQDSXTQ1

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum transient input voltage supported?

The device supports transient input voltages up to 42V.

Is the output voltage fixed or adjustable?

The LM53601MQ variant supports an adjustable output voltage range from 3.3V to 6V.