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Stable 3.3V Power for Embedded Builds

The 3.3V, 600mA Step-Down Voltage Regulator D36V6F3 is a compact switching regulator for projects that need a lower and more stable DC rail from a higher input source.

It is a strong fit for robots, control boxes, battery-powered builds, and embedded systems that need efficient power conversion with less heat than a linear regulator.

Important: Choose a regulator based on your full input-voltage range, startup current, thermal limits, and required headroom. Real output current depends on input voltage, airflow, and temperature.

Why you'll love it

  • ESP32 / RP2040 / 3.3V sensor rails powered from 12V/24V
  • Robots & mobile builds where efficiency + heat control matters
  • Battery systems (2S/3S/4S… up to 50V max) needing stable 3.3V
  • Projects that want a shutdown pin for low standby draw
  • Wide input range: handles up to 50V input (buck down to 3.3V)
  • Efficient switching: far less heat than linear regulators when stepping down from 12V/24V

What you can build

Great for powering 5V or 12V rails in robots, controllers, sensor hubs, SBC projects, vehicle electronics, and custom battery systems.

Compare regulator options

Model Topology Output Max current
D36V6F3 Buck 3.3 V
S7V8F3 Buck-Boost 3.3 V
D24V5F3 Buck 3.3 V

Technical specifications

Product 3.3V, 600mA Step-Down Voltage Regulator D36V6F3
Brand Pololu
Model D36V6F3
Category DC-DC Step-Down Regulator
Topology Step-Down (Buck)
Output Voltage 3.3 V
Operating Voltage 4-50 V
Support Official Pololu product search and support resources linked below

Official resources

Find this product on Pololu | Pololu support and resources

What’s in the box

1 × 3.3V, 600mA Step-Down Voltage Regulator D36V6F3

Frequently Asked Questions

Can I power a microcontroller with this?
Yes, if the regulator’s output voltage and current match your controller and all attached loads.
Will it run cool at full load?
It depends on input voltage, airflow, and load current. Check thermal limits in the official Pololu resources.
Is this better than a linear regulator?
For many builds, yes. Switching regulators are usually more efficient and waste less heat.

Build with this board

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Notes from the bench

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Ask the community

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