5V 3A Dual USB Step Down Buck Converter Module
Compact 12–24V to 5V dual-USB buck converter with up to 3A per port, high efficiency, and protection features.
Pinout
- VIN+
Positive DC input to the buck converter terminal block.
Type · PowerVoltage · 12V-24V input, from DFRobot specification. - VIN-
Negative DC input / return for the converter terminal block.
Type · GroundVoltage · Input return for 12V-24V supply. - USB 5V
Regulated 5V output available from each USB output port.
Type · PowerVoltage · 5.1±5%V no-load, 3A maximum output current per DFRobot specification/introduction. - USB GND
USB output ground / return.
Type · Ground
| Pin | Type | Function | Voltage |
|---|---|---|---|
| VIN+ | Power | Positive DC input to the buck converter terminal block. | 12V-24V input, from DFRobot specification. |
| VIN- | Ground | Negative DC input / return for the converter terminal block. | Input return for 12V-24V supply. |
| USB 5V | Power | Regulated 5V output available from each USB output port. | 5.1±5%V no-load, 3A maximum output current per DFRobot specification/introduction. |
| USB GND | Ground | USB output ground / return. |
Pin details
4 connections- VIN+
Positive DC input to the buck converter terminal block.
PowerVoltage · 12V-24V input, from DFRobot specification. - VIN-
Negative DC input / return for the converter terminal block.
GroundVoltage · Input return for 12V-24V supply. - USB 5V
Regulated 5V output available from each USB output port.
PowerVoltage · 5.1±5%V no-load, 3A maximum output current per DFRobot specification/introduction. - USB GND
USB output ground / return.
Ground
Start wiring
3.3 V · 5 V · Module
The family now includes 9 V wall adapters at 650 mA, 1 A and 2.55 A. The voltage class matches, but current headroom, plug region, connec…
Module pins: VIN+, USB 5V, VIN-, USB GND. Schematik maps them to your board in the app.
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