Typical Application Circuit for LTC3890EUH High Efficiency Dual 12V/3.3V Step-Down Converter

Reference Design using part LTC3890EUH by Analog Devices

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Manufacturer

Analog Devices
  • Application Category
    Power Supplies
  • Product Type
    DC to DC Multi-Output Power Supplies

For End Products

  • Automotive Power Supply
  • Battery Powered Systems
  • Distributed Power System

Description

  • Typical Application Circuit for LTC3890EUH High Efficiency Dual 12V/3.3V Step-Down Converter. The LTC3890 is a high performance dual step-down switching regulator DC/DC controller that drives all N-channel synchronous power MOSFET stages. A constant frequency current mode architecture allows a phase lockable frequency of up to 850kHz. Power loss and noise due to the ESR of the input capacitor are minimized by operating the two controller output stages out-of-phase

Key Features

  • Conversion Type
    DC to DC
  • Input Voltage
    12.5 to 60 V
  • Output Voltage
    3.3|12 V
  • Output Current
    3@12V|5@3.3V A
  • Topology
    Buck

Featured Parts (4)

Featured Parts
Part Number Manufacturer Type Description
LTC3890EUH-2#TRPBF Analog Devices DC to DC Controllers DC/DC Cntrlr Dual-OUT Step Down 900kHz 32-Pin QFN EP T/R Buy
LTC3890EUH#TRPBF Analog Devices DC to DC Controllers DC/DC Cntrlr Dual-OUT Step Down 900kHz 32-Pin QFN EP T/R Buy
LTC3890EUH-2#PBF Analog Devices DC to DC Controllers DC/DC Cntrlr Dual-OUT Step Down 900kHz 32-Pin QFN EP Tube Buy
LTC3890EUH#PBF Analog Devices DC to DC Controllers DC/DC Cntrlr Dual-OUT Step Down 900kHz 32-Pin QFN EP Tube Buy

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