DC2114A, Demo Board based on LT8603 42V Quad Output Triple Monolithic Buck Converter and Boost Controller

Reference Design using part LT8603EUJ by Analog Devices

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Manufacturer

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

For End Products

  • Automotive Applications
  • Industrial Applications
  • Transportation Equipment

Description

  • DC2114A, Demonstration Circuit features the LT8603 with triple monolithic buck regulator and a boost controller. The demo circuit is designed for 8V, 5V, 3.3V and 1.8V outputs from a nominal 12V input. The 4th channel is set as a boost converter and is powered from a wide input range with output VOUT4 regulated at 8V if 3V < VIN < 8.5V. It works as diode pass through if the input is above 8.5V. The two high voltage buck regulators are powered from the boost converter. VOUT1 is regulated at 5V with 1.5A maximum output load current, and VOUT2 is at 3.3V with 2.5A maximum output load current. Thanks to the pre-boost converter, they can ride through a cold crank in automotive applications while providing constant output voltages 5V and 3.3V. The low voltage buck is powered from the VOUT2 (3.3V), and the output VOUT3 is regulated at 1.8V with 1.8A maximum load current

Key Features

  • Conversion Type
    DC to DC
  • Input Voltage
    3 to 42 V
  • Output Voltage
    1.8|3.3|5|8 V
  • Output Current
    1.5@8V|1.5@5V|1.8@1.8V|2.5@3.3V A
  • Efficiency
    80 %
  • Topology
    Buck Boost

Featured Parts (2)

Featured Parts
Part Number Manufacturer Type Description
LT8603EUJ#PBF Analog Devices PMIC Solutions DC/DC Cntrlr Quad-OUT Step Down/Step Up 2200kHz 40-Pin QFN EP Tube Buy
LT8603EUJ#TRPBF Analog Devices PMIC Solutions DC/DC Cntrlr Quad-OUT Step Down/Step Up 2200kHz 40-Pin QFN EP T/R Buy

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