LM5576 - National Semiconductor

LM5576 Step-Down Switching

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 minimum set of components. Operating with an input voltage range of 6 - 75V, the LM5576 delivers 3A of continuous output current with an integrated 170mΩ N-Channel MOSFET. The regulator utilizes an Emulated Current M.

Features

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■ 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 Master or slave frequency synchronization Adjustable soft-start Emulated current mode control architecture Wide bandwidth error amplifier Built-in protection Package
■ TSSOP-20EP (Exposed Pad) Simplified Application Schematic 20189901 WEBENCH® is a registered trademark of National Semiconductor Corporation. © 2007 National Semiconducto.