LMR51635XDDCR

Voltage Regulators - DC DC Switching Regulators Overview

The LMR51635XDDCR is a synchronous step-down DC-DC converter manufactured by Texas Instruments. It operates with an input voltage range of 4.5V to 60V and delivers up to 3.5A of output current. The device integrates a high-side N-channel MOSFET and features adjustable switching frequencies from 100kHz to 2.5MHz. It includes internal compensation, soft-start, and comprehensive protection mechanisms such as overcurrent, overtemperature, and UVLO.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-side N-channel power switch for compact solution size
• Adjustable switching frequency allows optimization for efficiency or component size
• Internal compensation simplifies external component count
• Built-in thermal shutdown and cycle-by-cycle current limit

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial distributed power systems
• Automotive infotainment and body control modules
• Battery-powered equipment requiring wide input ranges
• Point-of-load regulation in telecom infrastructure

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'XDDCR' against the official LM51635 datasheet to confirm package type (PowerSOIC) and tape-and-reel quantity. Ensure the application requires the 60V maximum input rating and 3.5A current capability. Confirm RoHS compliance status matches project requirements before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a wide input voltage range up to 60V is required alongside moderate current delivery. It is suitable for designs prioritizing reduced external component count due to integrated compensation. Consider the thermal performance of the PowerSOIC package for high-duty-cycle applications at elevated ambient temperatures.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM516x family of high-voltage synchronous buck converters. It shares architectural similarities with other members like the LM5163 but offers higher current capacity. The family is designed for robust performance in automotive and industrial environments, featuring AEC-Q100 qualification for automotive-grade reliability.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct pin-to-pin replacements within the same family include the LM51635QDDCRQ1 for automotive-specific qualification requirements. Non-synchronous alternatives or different current ratings may require schematic redesign. Verify that any substitute maintains the 60V input rating and compatible switching frequency range.