Typical Application for ADP1621 Constant-Frequency, Current-Mode Step-Up DC/DC Controller

Reference Design using part ADP1621ARMZ by Analog Devices

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ADP1621-EVALZ Schematic (Sheet 1 of 2 )
ADP1621-EVALZ Schematic (Sheet 2 of 2 )
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Manufacturer

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

For End Products

  • LCD Backlighting
  • LED Driver
  • Portable

Description

  • Typical Application for ADP1621 Constant-Frequency, Current-Mode Step-Up DC/DC Controller. The input range for the demo board is 3V to 3.6V and the output voltage is 5V with a maximum load of 2A. The switching frequency fSW is set to 600 kHz with a 36 k-ohm resistor. This design is done in all multilayer ceramic capacitors (MLCC), although other types of capacitors can be used such as the aluminum polymer or aluminum electrolytic capacitors

Key Features

  • Conversion Type
    DC to DC
  • Input Voltage
    2.9 to 5.5 V
  • Output Voltage
    5 V
  • Output Current
    1 A
  • Efficiency
    90 %
  • Topology
    Boost

Featured Parts (1)

Featured Parts
Part Number Manufacturer Type Description
ADP1621ARMZ-R7 Analog Devices DC to DC Controllers DC/DC Cntrlr Single-OUT Step Up 1500kHz 10-Pin MSOP T/R Buy

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