Using a Linear Regulator to Produce a Constant Current Source

Reference Design using part MAX1735 by Analog Devices

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Manufacturer

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

For End Products

  • Cellular Phone
  • Cordless Phone
  • Docking Station
  • Laptop
  • Notebook
  • Personal Digital Assistant
  • Wireless Base Station

Description

  • Low-side constant-current source features the MAX1735 and draws 2.5V/ROUT from RLOAD. This circuit also requires that the voltage for ROUT between the IN and GND terminals is minimally 2.5V

Key Features

  • Conversion Type
    DC to DC
  • Input Voltage
    5.5 V
  • Output Voltage
    2.5 V

Featured Parts (6)

Featured Parts
Part Number Manufacturer Type Description
MAX1735EUK50+T Analog Devices Linear Regulators LDO Regulator Neg -1.25V to -5.5V-5V -0.2A 5-Pin SOT-23 T/R Buy
MAX1735EUK50+ Analog Devices Linear Regulators LDO Regulator Neg -1.25V to -5.5V-5V -0.2A 5-Pin SOT-23 T/R Buy
MAX1735EUK30+T Analog Devices Linear Regulators LDO Regulator Neg -1.25V to -5.5V-3V -0.2A 5-Pin SOT-23 T/R Buy
MAX1735EUK25+T Analog Devices Linear Regulators LDO Regulator Neg -1.25V to -5.5V-2.5V -0.2A 5-Pin SOT-23 T/R Buy
MAX1735EUK25+ Analog Devices Linear Regulators LDO Regulator Neg -1.25V to -5.5V-2.5V -0.2A 5-Pin SOT-23 T/R Buy
MAX1735EUK30+ Analog Devices Linear Regulators LDO Regulator Neg -1.25V to -5.5V-3V -0.2A 5-Pin SOT-23 T/R Buy

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