DC Buck & Boost Converters Philippines: Step-Up, Step-Down & Buck-Boost Regulators | Circuitrocks
DC Buck & Boost Converters — Clean Power for Arduino, ESP32 & Raspberry Pi
Keep your projects safe and stable with our curated DC-DC converters—from buck (step-down) and boost (step-up) to buck-boost, USB boosters, and adjustable regulators. Ideal for powering microcontrollers, LEDs, motors, pumps, radios, and more from a wide range of input sources.
Buck • Boost • Buck-Boost • Adjustable • Fixed 5V/9V/12V • USB Boost • High-Current
Why shop DC-DC here
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Wide range: from tiny boosters to high-current modules
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Easy integration: screw terminals, headers, and clear markings
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PH support: quick advice for Arduino, ESP32 & Pi power issues
Popular builds
- Robots and RC systems powered from Li-ion/LiPo packs
- Stable 5V rails for Raspberry Pi and WiFi/LoRa nodes
- LED strip lighting and addressable LED projects
- Bench power boxes and battery-powered test rigs
Featured converter categories
Tip: Always set the output voltage with a multimeter and check polarity before connecting your board, especially with adjustable buck/boost modules.
Converter chooser (quick guide)
| Need |
Good first choice |
Notes |
| Drop 12V to 5V for logic |
DC-DC buck converter (e.g. LM2596) |
More efficient and cooler than linear 7805 regulators, especially with higher currents. |
| Boost a single 18650 to 5V |
Boost converter or USB step-up module |
Great for power banks, portable WiFi/LoRa nodes, and small LED projects. |
| Input varies above & below target |
Buck-boost (step-up/step-down) converter |
Keeps output steady even when the battery crosses above/below the desired voltage. |
| Powering Raspberry Pi |
5V buck converter rated 3A or higher |
Use thick wires and keep cable short to avoid undervoltage warnings on Pi. |
| Motors, pumps, and servos |
Higher-current buck/boost with heatsink |
Check stall current of motors and leave headroom (30–50%) on converter rating. |
| Bench supply / test rig |
Adjustable buck or buck-boost with display |
Lets you dial in different voltages for quick prototyping on the bench. |
| From car or solar sources |
Wide-input buck or buck-boost |
Look for modules with automotive/solar-friendly input range (e.g. up to 30–40V). |
Values and picks are common starting points; check each product page for exact voltage/current ratings and safe wiring.
Starter bundles
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Portable Node: 18650 holder + boost converter + ESP32 + OLED
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Robot Power Pack: 3S battery + buck converter for logic + dedicated motor supply + motor driver
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Bench Power Box: 12V adapter + adjustable buck-boost with display + binding posts & leads
FAQ
Are these converters safe for Arduino/ESP32/Raspberry Pi?
Yes—just set the correct output voltage and ensure the converter can supply enough current. Double-check polarity before powering your board.
What’s the difference between buck, boost, and buck-boost?
A buck converter steps voltage down, a boost converter steps voltage up, and a buck-boost can do both, keeping the output steady across a wider input range.
Do I still need capacitors and fuses?
Yes—local decoupling capacitors help smooth transients, and an inline fuse or polyfuse is recommended for protection, especially on battery or automotive sources.
Do you ship nationwide?
Yes—fast shipping anywhere in the Philippines. Same-day processing on in-stock orders before cutoff.
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