LM5576 Step-Down Switching

National Semiconductor

Description

LM5576 SIMPLE SWITCHER® 75V, 3A Step-Down Switching Regulator March 2007 LM5576 SIMPLE SWITCHER® 75V, 3A Step-Down Switching Regulator General Descr.
The LM5576 is an easy to use SIMPLE SWITCHER® buck regulator which allows design engineers to design and optimize a robust power supply using a minimu.

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Datasheet Specifications

Part number: LM5576
Manufacturer: National Semiconductor
File Size: 428.10 KB
Datasheet: LM5576_NationalSemiconductor.pdf
Description: Step-Down Switching

Features

* Integrated 75V, 170mΩ N-channel MOSFET Ultra-wide input voltage range from 6V to 75V Adjustable output voltage as low as 1.225V 1.5% feedback reference accuracy Operating frequency adjustable between 50kHz and 500kHz with single resistor Ma

Applications

* where the output may be precharged before the LM5576 is enabled. An internal precharge MOSFET is turned on for 265ns each cycle just prior to the on-time interval of the buck switch. 6 7 8 9 COMP FB RT RAMP 10 11 AGND SS Analog ground Soft-start 12 13, 14 15, 16 OUT PGND IS Output voltage co

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LM5576 Step-Down Switching National Semiconductor

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