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Green rectangular circuit board with silver heatsink and terminal blocks, 54 by 29 by 21 mm

JacobsParts Inc.

JacobsParts DCMOD-R 30W buck-boost regulator circuit protection

SKU CH-14RF-E7NPE

Adjustable buck-boost regulator steps 4.5-30 V input to .5-30 V output at up to 3 A, with heatsink, fuse, undervoltage and short-circuit protection in a 54x29x21 mm module

  • TypeSwitching Voltage Regulator
  • Mounting StyleStand Alone
  • Power Rating30 W
  • Buck or boost 4.5-30 V input to stable 0.5-30 V output
  • 30 W continuous power, 60 W with fan cooling
  • Built-in heatsink, fuse, undervoltage and short-circuit protection
  • Dual-stage filtering keeps ripple below 30 mV at 180 kHz
  • Compact 54x29x21 mm module suits microcontroller, LED and automotive projects

Adjustable buck-boost regulator

This switching voltage regulator steps DC voltage up or down to maintain a stable regulated output. It accepts an input range of 4.5-30V DC and provides an adjustable output from .5-30V. The module includes a heatsink, input fuse, undervoltage protection, short-circuit protection, and dual-stage output filtering for clean power delivery. It suits microcontroller, LED, automotive, and computer DC power projects.

30 W continuous capacity with fan headroom

The unit delivers a maximum output current of 3 A and a continuous power rating of 30 W. With an external cooling fan added, the maximum power capacity increases to 60 W. Efficiency ranges from 87-91% in boost mode and 86-90% in buck mode, varying with the voltage difference between input and output. The 180 kHz switching frequency keeps output ripple below 30 mV under load.

Stand-alone module physical limits

The regulator measures 54x29x21 mm and uses a stand-alone mounting style without integrated mounting holes. Thermal performance relies on the included heatsink; sustained operation at higher power levels requires forced airflow from an external fan. The input fuse and undervoltage protection guard against supply faults, while the output short-circuit protection limits damage during wiring errors.

Highlights

  • Buck or boost 4.5-30 V input to stable 0.5-30 V output
  • 30 W continuous power, 60 W with fan cooling
  • Built-in heatsink, fuse, undervoltage and short-circuit protection
  • Dual-stage filtering keeps ripple below 30 mV at 180 kHz
  • Compact 54x29x21 mm module suits microcontroller, LED and automotive projects

Specifications

BrandJacobsParts
ModelDCMOD-R
TypeSwitching Voltage Regulator
Mounting StyleStand Alone
Power Rating30 W

Questions about this item

Can the 30 W buck-boost module accept a 4.5 V input from an older battery pack and still deliver a stable 5 V output?

Yes, the input range starts at 4.5 V and the output can be set from 0.5 V to 30 V, so a 5 V output is within range.

How can I verify the regulator is operating correctly after wiring it?

Measure the output with a multimeter; it should read your set voltage between 0.5 V and 30 V with ripple below 30 mV at up to 3 A load.

What accessories are included and what must I source separately?

The module ships with a heatsink, an input fuse and dual-stage output filtering built in; a cooling fan for 60 W operation and any input power source or wiring are not included.

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