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Two small green circuit boards each with dual USB ports and screw terminals

LORDWORLD

LORDWORLD Dual USB Buck Converter 10-32V 2.5A 30W QC 3.0 2pcs

SKU CH-7CYT-KA1R2

Dual USB buck converter steps 10-32 V input to 3-12 V output with QC 3.0 fast charging and 2.5 A per port

  • Dual USB ports charge two devices simultaneously
  • Input range 10-32V suits vehicle and solar systems
  • QC 3.0 and multiple fast-charge protocols enable rapid charging
  • Each port delivers up to 2.5A at 30W
  • Built-in fuse and over-voltage protection safeguard connected equipment

LORDWORLD Dual USB Buck Converter

The LORDWORLD Dual USB Buck Converter is a step-down voltage regulator that accepts a DC input between 10 and 32 volts. Each of the two USB ports can deliver up to 2.5 amps at 30 watts, with a default 5 volt output that shifts to 3 to 12 volts when a quick-charge handshake is detected. Built-in over-voltage protection and an input fuse safeguard connected devices.

Suits custom 12 V power projects.

This module suits hobbyists and technicians who need adjustable USB power from a higher-voltage DC source such as a vehicle or bench supply. It is not intended for loads that require a locked 5 volt rail without negotiation, nor for applications demanding more than 2.5 amps per port.

Dual USB QC 3.0 support up to 30 W per port

The single specification that decides fit is the quick-charge protocol stack: QC 2.0, QC 3.0, MTK PE 1.1 and 2.0, AFC, FCP and SFCP are all supported. If your device uses one of these standards it will trigger the higher output voltage automatically; otherwise the ports remain at the default 5 volts.

How it compares

Measured against everything we stock in Tech Gadgets & Accessories, at today’s prices. Recalculated every night.

Price $30.99
Pricier than about 61% of the 5,998 comparable items (median $24.99).

Specifications

Product
Brand nameLORDWORLD

Questions about this item

What input-voltage range and fuse protection does the LORDWORLD buck converter need for safe mounting?

The board accepts 10-32 V DC and includes an input fuse; connect it to a source inside that range and ensure the fuse remains accessible for replacement.

Which step in wiring the dual USB ports commonly causes no output?

Forgetting to trigger the quick-charge handshake — default output is 5 V; the converter only steps up to 3-12 V after a QC 2.0, QC 3.0, MTK PE 1.1/2.0, AFC, FCP or SFCP negotiation.

When should the input fuse be checked or replaced on this 2.5 A 30 W converter?

Inspect the fuse if either USB port stops delivering power or if the supply voltage spikes beyond 32 V; a blown fuse indicates an over-current event that must be cleared before reuse.

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