DROK DC Buck Converter 6–55V to 0–50V 5A

DROK's DC buck converter is an adjustable step‑down power module that converts 6–55V DC input to 0–50V output with up to 5A, featuring a color LCD, programmable presets, and active cooling.

This compact regulator combines analog power handling with digital control so you can set precise voltages and currents for bench testing, battery charging, hobby electronics, or prototype power supplies. The front color LCD shows input voltage, output voltage, setpoints, current draw and output power, while built‑in memory stores up to ten preset configurations for quick recall. Safety features include reverse‑polarity protection and short‑circuit protection, and an intelligent fan ramps up when output current exceeds 0.5A to keep the unit within thermal limits.

How precise are the output voltage and current settings?

The DROK module provides fine resolution and repeatable accuracy for controlled powering of circuits and devices. Voltage is adjustable in 0.01V increments and current in 0.001A increments, with measurement accuracy specified by the manufacturer.

• Output voltage range: 0–50.00V, resolution 0.01V
• Output current range: 0–5.000A, resolution 0.001A
• Voltage measurement accuracy: ±(0.5% + 1 digit)
• Current measurement accuracy: ±(0.5% + 2 digits)

What are the input and output electrical limits I must observe?

Follow the stated voltage and wiring limits to avoid damaging the converter. The module accepts DC inputs from 6V up to 55V (55V maximum), and delivers up to 5A or 250W output; always leave headroom below the absolute input maximum.

• Input voltage: DC 6–55V (do not exceed 55V)
• Output voltage: DC 0–50V
• Max output current: 0–5A (max 250W total)
• Important: input voltage must be DC and at least ~1.1× the intended output

How do I wire and protect the converter in my setup?

Wiring is straightforward but crucial for safety — miswiring or applying AC mains will damage the module. Use the labeled IN+ / IN- for source connections and OUT+ / OUT- for the load; the board includes reverse polarity and short‑circuit protection but correct connection is required.

• IN+: input positive; IN-: input negative
• OUT+: output positive; OUT-: output negative
• Do not apply AC mains (e.g., 220V) to the input — DC only
• Do not connect supply to the output terminal; that can destroy the module

What usability features help in repeated tasks or testing?

The converter stores and recalls preset profiles, displays key telemetry on the LCD, and uses an automatic fan for thermal management — features designed for repeated measurements and rapid reconfiguration.

• Stores up to 10 preset voltage/current groups with power‑down retention
• Quick recall for two favorite presets for fast switching
• Color LCD displays setpoint and live input/output readings plus output power
• Automatic ball‑bearing fan engages above 0.5A for consistent cooling

Who is this for: The DROK DC Buck Converter is aimed at electronics hobbyists, lab technicians, and makers who need a compact, programmable step‑down supply with accurate readouts and repeatable presets. It's suitable for prototyping, bench testing, rechargeable battery servicing (follow battery charging best practices), and power management in DIY projects — provided you follow the DC input and wiring guidelines and keep the input voltage safely below the 55V maximum.