LM25085A - 42V Constant On-Time PFET Buck Switching Controller

Product Overview

National Semiconductor

Part number	LM25085A
Manufacturer	National Semiconductor
File Size	551.63 KB
Description	42V Constant On-Time PFET Buck Switching Controller
Datasheet	LM25085A Datasheet
Additional preview pages of the LM25085A datasheet.

The LM25085A is a functional variant of the LM25085 COT PFET Buck Switching Controller.

Wide 4.5V to 42V input voltage range.
Adjustable current limit using RDS(ON) or a current sense.
resistor Programmable switching frequency to 1MHz No loop compensation required Ultra-Fast transient response Nearly constant operating frequency with line and load variations Adjustable output voltage from 0.9V Precision ±2% feedback reference Capable of 100% duty cycle operation Internal soft-start timer Integrated high voltage b.

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Published: Sep 11, 2009 |