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Voltage Regulator module 3.3V Step-Down 3.6A D36V28F3

Step-Down converter D36V28F3 with an output voltage of 3.3 V, an input voltage from 4.5 to 50 V and a maximum output current of 4.5 A. Pololu 3781

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ID: 586587

11,72€ gross (23% VAT)
9,53€ net

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Data sheet

Output voltage3,3 V
Output current3,6 A
Converter typeStep-down
Supply voltage min4,5 V
Supply voltages max50 V

More info


Step-Down converter module D36V28F3 with an output voltage of 3.3 V and an input voltage from 4.5 to 50 V. The maximum current load of the module is from 3.2 to 4.5 A and depends on the input voltage. The inverter achieves a standard efficiency of over 80-90%, which is dependent on the input voltage and load. The module is protected against reverse polarity, overheating, overload and short circuit.


  • VIN - power input
  • GND - ground
  • VOUT - output
  • PG - an open drain output that goes low when the regulator's output voltage rises more than 20% above or drops by more than 10% below the nominal voltage
  • EN - converter is enabled by default (100 kΩ pull-up resistor on the board connects EN pin with VIN). The ENABLE pin can be set low to turn off the power and put the board into a low-power state.


  • Input voltage: 4.5 to 50V
  • Output voltage: 3.3V
  • Type. maximum current: from 3.2 to 4.5 A
  • Built-in protection against overheating, overload, short circuit and reverse polarity
  • Type. efficiency: 80-90%
  • Switching frequency: approx. 500 kHz under heavy loads
  • Energy saving mode
  • Typical quiescent current from 2 mA to 3 mA
  • EN input with a precise cut-off threshold to disconnect the load and put the controller into a low-power state
  • Power good output, which indicates when the controller cannot maintain the output voltage adequately
  • The soft-start function limits the inrush current and gradually increases the output voltage
  • Two M2 mounting holes
  • Dimensions: 17.8 x 20.3 x 8.8 mm


Kit contains

  • D36V28F3 converter module
  • Straight 6-pin goldpin connector
  • 5-pin angled goldpin connector