shop/ buck & boost converters/ pololu 5v 5.5a step-down voltage regulator

5V 5.5A Step-Down (Buck) Voltage Regulator — D36V50F5

Need a stable 5V power rail from a higher-voltage source? The D36V50F5 is a high-efficiency DC-DC buck converter that accepts 5.5V to 50V input and provides a fixed 5V output for 5V microcontrollers, SBCs, sensors, LED strips, and other 5V loads.

  • Wide input range: great for 2S/3S/4S/6S battery packs and 12V/24V systems (within 5.5–50V).
  • High current headroom: delivers up to 5.5A continuous (thermally dependent).
  • Reverse-voltage protection: helps protect against accidental polarity reversal.
  • Low standby draw: max quiescent current around 4mA.

Continuous current depends on airflow, ambient temperature, input voltage, and wiring. For high loads, use thick/short wires and allow airflow.

Common uses

  • Power a clean 5V bus from 12V/24V supplies in robotics and automation builds
  • Run 5V microcontrollers + sensors from higher-voltage battery packs
  • 5V accessories (USB devices, relays, small LED strips) with proper current budgeting

Technical specifications

Input voltage 5.5V to 50V
Output voltage 5V (fixed)
Continuous output current Up to 5.5A (thermally dependent)
Reverse voltage protection Yes
Max quiescent current ~4mA
Dimensions 1″ × 1″ × 0.375″
Weight ~7g


FAQ

Will this ship from Manila?

Yes — all stock ships from our Quezon City warehouse. Order before 4 PM weekdays for same-day cutoff via J&T or LBC.

Do you ship nationwide?

Yes. Metro Manila usually arrives next-day; provincial 1–3 working days.

Can I get this on a school PO or class order?

Yes — we accept Purchase Orders from accredited schools and universities. Contact us with your PO details and we'll process it.

Is this compatible with Arduino, ESP32, or Raspberry Pi?

Most parts work with common maker boards — check the description for specific pinout / voltage notes. If you're unsure, send us a message before ordering.

What's your return policy?

7-day inspection window for DOA units. Email proof of issue and we'll ship a replacement or refund. Used / installed parts are not returnable unless faulty.

Do you offer technical support?

Yes — questions land on our forum or via email, weekday or weekend. We've actually wired up most of what we sell.

Build with this board

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Notes from the bench

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