Part Number : LM25085

Function : 42V Constant On-Time PFET Buck Switching Controller

Package : HVSSOP, VSSOP 8 Pin type

Maker : Texas Instruments

Pinouts :
LM25085 datasheet

Description :

The LM25085 is a high efficiency PFET switching regulator controller that can be used to quickly and easily develop a small, efficient buck regulator for a wide range of applications. This high voltage controller contains a PFET gate driver and a high voltage bias regulator which operates over a wide 4.5V to 42V input range. The constant on-time regulation principle requires no loop compensation, simplifies circuit implementation, and results in ultra-fast load transient response.

The operating frequency remains nearly constant with line and load variations due to the inverse relationship between the input voltage and the on-time. The PFET architecture allows 100% duty cycle operation for a low dropout voltage. Either the R DS(ON) of the PFET or an external sense resistor can be used to sense current for over current detection.

Application circuits :

 


Datasheet PDF Download :
LM25085 pdf

Others datasheet of same file :

LM25085-Q1, LM25085MM/NOPB, LM25085MME/NOPB, LM25085MMX/NOPB

2021/06/15 12:06 2021/06/15 12:06

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