Pololu, Buck Regulator, Vin 4-36V, Vout 3.3V 2.6A

The D24V22Fx family of step-down voltage regulators generates lower output voltages from input voltages as high as 36 V. They are synchronous switching regulators (also called switched-mode power supplies (SMPS) or DC-to-DC converters) with typical efficiencies of 85% to 95% which is much more efficient than linear voltage regulators, especially when the difference between the input and output voltage is large.

These regulators can typically support continuous output currents of over 2 A, though the actual available output current is a function of the input voltage and efficiency (see the Typical efficiency and output current section below). In general, the available output current is a little higher for the lower-voltage versions than it is for the higher-voltage versions, and it decreases as the input voltage increases.

Quick Spec

  • Input voltage: 4 V to 36 V for the version that outputs 3.3 V
  • [output voltage + dropout voltage] to 36 V for output voltages of 5 V and higher (see below for more information on dropout voltage)
  • Fixed 3.3 V output with 4% accuracy
  • Typical maximum continuous output current: >2 A
  • Typical efficiency of 85% to 95%, depending on input voltage, output voltage, and load
  • Switching frequency: ~400 kHz
  • Integrated reverse-voltage protection, over-current protection, over-temperature shutoff, and soft-start
  • 1 mA typical no-load quiescent current; this can be reduced to approximately 5 µA to 10 µA per volt on VIN by disabling the board
  • “Power good” output indicates when the regulator cannot adequately maintain the output voltage
  • Compact size: 0.7″ × 0.7″ × 0.31″ (17.8 mm × 17.8 mm × 8 mm)
  • Two 0.086″ mounting holes for #2 or M2 screws

Shipping List

  • 1 x Voltage regulator 3.3V @2.6A ( 4 - 36V input)


Pololu, Buck Regulator, Vin 4-36V, Vout 3.3V 2.6A

  • Brand: Pololu Electronics
  • Product Code: 2857
  • Weight: 0.004kg
  • Product Status : Active
  • Stock

    Warehouse Stock Status Location
    Centurion Limited Stock UL252
    Stellenbosch Limited Stock B0049

    We ship free of charge between branches to complete your order.

  • R146.00 (Inc Tax: R167.90)


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Tags: regulator