Efficient Switch mode Power Supply Start-Up Circuit

Reference Design using part LND150N3 by Microchip Technology

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Manufacturer

Microchip Technology
  • Application Category
    Power Supplies
  • Product Type
    AC to DC Multi-Output Power Supplies

For End Products

  • AC to DC Power Supply
  • Solid state lighting

Description

  • Efficient Switch mode Power Supply Start-Up Circuit. The purpose of this application note is to many advantages of using the Supertex LND150N3 in the start-up circuit for switch mode power supplies. Commonly used low voltage bipolar, CMOS and BiCMOS switch mode power supply PWM ICs usually operate from supply voltages of up to 18V

Key Features

  • Conversion Type
    AC to DC
  • Input Voltage
    120 to 240 (AC) V
  • Output Voltage
    5|12 V
  • Output Current
    0.003 A
  • Output Power
    3.4 W
  • Topology
    Buck

Featured Parts (5)

Featured Parts
Part Number Manufacturer Type Description
LND150N3-G Microchip Technology MOSFETs Trans MOSFET N-CH 500V 0.03A 3-Pin TO-92 Bag Buy
LND150N3-G-P014 Microchip Technology MOSFETs Trans MOSFET N-CH 500V 0.03A 3-Pin TO-92 Ammo Buy
LND150N3-G-P003 Microchip Technology MOSFETs Trans MOSFET N-CH 500V 0.03A 3-Pin TO-92 T/R Buy
LND150N3-G-P002 Microchip Technology MOSFETs Trans MOSFET N-CH 500V 0.03A 3-Pin TO-92 T/R Buy
LND150N3-G-P013 Microchip Technology MOSFETs Trans MOSFET N-CH 500V 0.03A 3-Pin TO-92 Ammo Buy

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