LM25115SD/NOPB

Power Supply Controllers, Monitors Overview

The LM25115SD/NOPB is a synchronous buck controller designed for secondary-side post-regulation. It supports an input voltage range of 0V to 42V and delivers up to 2.5A output current. The adjustable output voltage spans from 750mV to 13.5V, with a switching frequency range of 50kHz to 1MHz. Operating temperatures extend from -40°C to +125°C. The device utilizes a 16-pin LLP package.

Power Supply Controllers, Monitors Feature Summary

• Synchronous buck topology optimized for secondary-side post-regulator applications
• Integrated soft-start functionality to manage inrush currents during power-up
• Frequency synchronization capability allows for noise reduction through phase alignment

Power Supply Controllers, Monitors Applications

• Secondary side post regulators in point-of-load architectures
• High input rail synchronous buck converters
• Industrial power supply systems requiring wide input ranges

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm package type and RoHS compliance status. Ensure that ordering information matches the exact part number variant required for the design. Cross-reference datasheet revisions to validate electrical characteristics before finalizing procurement specifications.

Power Supply Controllers, Monitors Selection Notes

Select this component when designing synchronous buck converters requiring secondary-side regulation. The wide input voltage range accommodates high-voltage rails. Verify thermal performance requirements for the LLP-16 package under maximum load conditions. Confirm that the operating temperature range meets the environmental constraints of the target application system.

Power Supply Controllers, Monitors Part Context

This part belongs to the LM25115 family of switching controllers. It shares functional similarities with variants like the LM25115MT/NOPB but differs in physical packaging. The SD suffix indicates the LLP-16 package configuration, distinguishing it from TSSOP-based alternatives within the same product line.

Power Supply Controllers, Monitors Replacement Considerations

LM25115SDX/NOPB is a documented substitute within the same series.