LMR23630AFQDDAQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LMR23630AFQDDAQ1 is an automotive-qualified synchronous step-down DC/DC converter from Texas Instruments' SIMPLE SWITCHER family. It operates with an input voltage range of 4 V to 36 V and delivers a maximum output current of 3 A. The device features a fixed switching frequency of 400 kHz and supports adjustable output voltages from 1 V to 28 V. It includes integrated power MOSFETs, a low quiescent current of 75 uA, and thermal shutdown protection. The component is housed in a WSON-12 package and is rated for operation between -40°C and +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive-grade reliability certified under AEC-Q100 standards for robust performance in vehicle environments.
• Integrated synchronous rectification provides high efficiency across wide load and line conditions.
• Fixed 400 kHz switching frequency enables the use of compact external passive components.

Voltage Regulators - DC DC Switching Regulators Applications

• On-board charging (OBC) systems
• Body control modules
• Infotainment power distribution

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'AFQD' against the official datasheet to confirm pinout and thermal pad configuration. Ensure the selected package matches the PCB footprint requirements. Confirm that the AEC-Q100 qualification level meets the specific automotive application grade required by the design specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a 3 A buck converter with automotive certification is required. The 400 kHz frequency balances component size and efficiency. Verify that the 36 V maximum input voltage covers the system's transient spikes. Consider the WSON-12 package for space-constrained layouts requiring efficient heat dissipation.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LMR23630 series, designed for high-efficiency power conversion in automotive applications. It shares architectural similarities with other SIMPLE SWITCHER devices but is optimized for the specific electrical and environmental demands of automotive electronics.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for direct cross-references within the LMR23630 family or compatible TI automotive buck converters. Verify pin-to-pin compatibility before substitution to ensure circuit integrity without redesign.