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Small rectangular green circuit board in a translucent plastic shell with USB-A plug, micro-USB port

LORDWORLD

LORDWORLD 15W DC-DC Buck Boost Converter 4.0-13V to .5-30V with Shell

SKU CH-BX6K-J4FTX

Adjustable buck-boost module converts 4.0-13V input to 0.5-30V output at up to 15W with short-circuit, over-current and over-temperature protection

  • Adjustable output .5-30V from 4.0-13V input for flexible power delivery
  • 15W capacity with 0-2A current limit supports diverse low-power devices
  • Three input options: USB-A, Micro-USB and solder pads for versatile connectivity
  • Built-in short-circuit, over-current and over-temperature protection prevents damage
  • Constant-current anti-backflow charging suits most battery types safely

Adjustable DC-DC Converter

The LORDWORLD module steps input voltage up or down across a wide range, delivering 0.5 V to 30 V from a 4.0 V to 13 V source. It suits hobbyists, repair technicians and anyone needing a compact bench supply with constant-current limiting up to 2 A. Short-circuit, over-current and over-temperature protections keep experiments safe. The enclosed shell adds durability for portable use.

Three Input Options

A standard USB-A plug and a micro-USB socket each accept a fixed 5 V feed from common chargers or power banks. For greater flexibility, the IN+ and IN- solder pads accept any DC source between 4.0 V and 13.0 V, letting the board run from lithium packs, solar panels or regulated rails. Correct polarity is essential on the pads and AC must never be applied. No external driver board is required.

Sustained Load Behaviour

Rated at 15 W, the converter maintains its output voltage under continuous draw up to the 2 A current limit. Over-temperature protection throttles the unit before damage occurs, so long runs stay stable without forced airflow. The constant-current mode holds the set limit cleanly during battery charging, preventing current spikes as cells approach full voltage. Efficiency varies with the step ratio, so thermal headroom should be checked for the specific input-output combination.

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Price $24.99
Typical for this category: the median of 5,998 items is $24.99.

Specifications

Product
Brand nameLORDWORLD

Questions about this item

What is the maximum continuous output current before the 15 W limit is reached?

The module is rated for 15 W total power with a current limit adjustable up to 2 A, so the sustained current depends on the chosen output voltage.

Does the converter include a fan or rely on passive cooling during all-day operation?

The unit has no fan; it uses the included shell for passive heat dissipation and provides over-temperature protection.

Which power source must I already have to use the 4.0 V to 13.0 V input range?

You need a DC supply wired to the IN+ and IN- solder pads; the USB-A and Micro-USB inputs only accept 5 V.

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