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LM5001

National Semiconductor
Part Number LM5001
Manufacturer National Semiconductor
Description Regulator
Published Jan 12, 2009
Detailed Description LM5001 High Voltage Switch Mode Regulator August 2007 LM5001 High Voltage Switch Mode Regulator General Description Th...
Datasheet PDF File LM5001 PDF File

LM5001
LM5001

Overview
LM5001 High Voltage Switch Mode Regulator August 2007 LM5001 High Voltage Switch Mode Regulator General Description The LM5001 high voltage switch mode regulator features all of the functions necessary to implement efficient high voltage Boost, Flyback, SEPIC and Forward converters, using few external components.
This easy to use regulator integrates a 75 Volt N-Channel MOSFET with a 1 Amp peak current limit.
Current mode control provides inherently simple loop compensation and line-voltage feed-forward for superior rejection www.
DataSheet4U.
com of input transients.
The switching frequency is set with a single resistor and is programmable up to 1.
5MHz.
The oscillator can also be synchronized to an external clock.
Additional protection features include: current limit, thermal shutdown, under-voltage lockout and remote shutdown capability.
The device is available in both SO-8 and LLP-8 packages.
Features ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ Integrated 75 volt N-Channel MOSFET Ultra-wide input voltage range from 3.
1V to 75V Integrated high voltage bias regulator Adjustable output voltage 1.
5% output voltage accuracy Current mode control with selectable compensation Wide bandwidth error amplifier Integrated current sensing and limiting Integrated slope compensation 85% maximum duty cycle limit Single resistor oscillator programming Oscillator synchronization capability Enable / Undervoltage Lockout (UVLO) pin Thermal shutdown Packages ■ SO-8 ■ LLP-8 (4mm x 4mm) Typical Application Circuit 20215701 Boost Regulator Application Schematic © 2007 National Semiconductor Corporation 202157 www.
national.
com LM5001 Connection Diagrams Top View SO-8 Package Top View LLP-8 Package 20215703 20215702 www.
DataSheet4U.
com Ordering Information Order Number LM5001MA LM5001MAX LM5001SD LM5001SDX LM5001SDE Package Type SO-8 SO-8 LLP-8 LLP-8 LLP-8 NSC Package Drawing M08A M08A SDC08A SDC08A SDC08A Supplied As 95 Units in a Rail 2500 Units on Tape and Reel 1000 Units on Tape and Reel ...


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