DC2040A, Demonstration Board using LTC3355EUF, 20V 1A Buck DC/DC with Integrated SCAP Charger and Backup Regulator

Reference Design using part LTC3355EUF by Analog Devices

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DC2040A Image (Sheet 1 of 4)
Buck Efficiency (Sheet 2 of 4)
Boost Efficiency (Sheet 3 of 4)
DC2040A Schematic (Sheet 4 of 4)
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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

  • Intruder Alarm Motion Detector
  • Power Meter
  • Solid State Drive: Internal/External
  • USB Dying Gasp

Description

  • DC2040A, Demonstration circuit 2040A is a 12V to 4V/1A regulator with an integrated supercap charger and backup boost regulator featuring the LTC3355EUF. The LTC3355 charges up a 3F supercapacitor from the output when the 12V input is available. When the 12V input fails, the backup boost regulator supplies the output until the energy in the supercapacitor is depleted

Key Features

  • Conversion Type
    DC to DC
  • Input Voltage
    11.2 to 13.2 V
  • Output Voltage
    4 V
  • Output Current
    1 A
  • Efficiency
    90 %
  • Topology
    Buck Boost

Featured Parts (2)

Featured Parts
Part Number Manufacturer Type Description
LTC3355EUF#TRPBF Analog Devices DC to DC Converter and Switching Regulator Chip Conv DC-DC 3V to 20V Synchronous Step Down Single-Out 2.7V to 5V 1A 20-Pin QFN EP T/R Buy
LTC3355EUF#PBF Analog Devices DC to DC Converter and Switching Regulator Chip Conv DC-DC 3V to 20V Synchronous Step Down Single-Out 2.7V to 5V 1A 20-Pin QFN EP Tube Buy

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