DC947A, Demonstration Board using LT3740EDHC wide operating range, valley mode, synchronous step-down controller

Reference Design using part LT3740EDHC by Analog Devices

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Manufacturer

Analog Devices
  • Application Category
    Power Supplies
  • Product Type
    DC to DC Single Output Power Supplies
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Associated Documents

For End Products

  • Backplane Distributed Power
  • Computers and Peripherals
  • Notebook
  • Personal Digital Assistant
  • Portable

Description

  • DC947A, Demonstration Board using LT3740EDHC wide operating range, valley mode, synchronous step-down controller. It produces 1.8VDC for loads up to 10A from an input range of 3-15VDC, switching at a fixed frequency of 300KHz. In order to operate from an input voltage as low as 3V, the circuit must provide adequate voltage to drive the external power MOSFETs. To this end, the LT3740 includes an on-chip step-up converter to provide a bias about 7V above the input voltage to power the top MOSFET gate driver

Key Features

  • Conversion Type
    DC to DC
  • Input Voltage
    3 to 15 V
  • Output Voltage
    1.8 V
  • Output Current
    10 A
  • Topology
    Buck

Featured Parts (2)

Featured Parts
Part Number Manufacturer Type Description
LT3740EDHC#TRPBF Analog Devices DC to DC Controllers DC/DC Cntrlr Single-OUT Step Down 330kHz 16-Pin DFN EP T/R Buy
LT3740EDHC#PBF Analog Devices DC to DC Controllers DC/DC Cntrlr Single-OUT Step Down 330kHz 16-Pin DFN EP Tube Buy

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