LM5001 Datasheet | National Semiconductor

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 ponents. 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 pensation and line-voltage feed-forward for superior rejection .. 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 pensation Wide bandwidth error amplifier Integrated current sensing and limiting Integrated slope pensation 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 Boost Regulator Application Schematic © 2007 National Semiconductor Corporation .national. Connection Diagrams Top View SO-8 Package Top View LLP-8 Package 20215703 20215702 .. 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 4500 Units on Tape and Reel 250 Units on Tape and Reel Pin Descriptions Pin SO 1 2 3 LLP 3 4 5 Name SW VIN VCC Description Switch pin Input supply pin...