LM25085ASD/NOPB

DC DC Switching Controllers Overview

The LM25085ASD/NOPB is a non-synchronous PFET buck controller from Texas Instruments. It operates with an input voltage range of 4.5V to 42V and supports a switching frequency up to 1MHz. The device features a constant on-time control architecture and delivers a maximum output current of 1.75A. It provides adjustable output voltages from 900mV to 42V with a 0.9V reference. The component functions within a temperature range of -40°C to +125°C and is housed in an 8-WSON (3x3) package.

DC DC Switching Controllers Feature Summary

• Constant on-time control architecture for simplified compensation
• Integrated high-side PFET driver for efficient power conversion
• Wide input voltage range supporting various supply rails
• Built-in cycle-by-cycle current limiting protection

DC DC Switching Controllers Applications

• Industrial point-of-load regulation
• Automotive electronics systems
• Communication infrastructure power supplies
• General-purpose DC-DC step-down converters

DC DC Switching Controllers Procurement Notes

Verify the specific suffix ASD against the official datasheet to confirm the 8-WSON package and pinout configuration. Ensure compatibility with the required thermal performance for the target application environment. Cross-reference the manufacturer part number directly with Texas Instruments documentation to avoid counterfeit components or incorrect variant substitutions.

DC DC Switching Controllers Selection Notes

Select this controller when a non-synchronous solution is preferred for cost or simplicity. The wide input voltage range suits applications requiring robustness against line variations. Consider the 8-WSON package size constraints and thermal dissipation requirements. Verify that the external PFET selection aligns with the controller's drive capabilities and current handling needs.

DC DC Switching Controllers Part Context

This component belongs to the LM25085A family of wide input voltage buck controllers. It shares architectural similarities with other members like the LM25085AMMX but differs in packaging. The series is designed for high-efficiency power management in compact form factors, offering a balance between performance and board space efficiency for modern electronic designs.

DC DC Switching Controllers Replacement Considerations

LM25085MM/NOPB offers similar electrical characteristics in a VSSOP package.