This all-in-one DC-DC buck boost regulator board supports both step-up and step-down voltage conversion, output voltage can be lower, equal or higher than input voltage. It adopts CV constant voltage & CC constant current dual working modes, built-in LCD screen to real-time monitor input voltage, output voltage, output current, power and cumulative capacity.
The module accepts wide input voltage 5.5V-30V, adjustable output range 0.5V-30V, max 4A 50W output with matched aluminum heat sink. Multiple safety protections including reverse input protection, short-circuit protection, overheat and over-current limit are integrated for stable operation.
Comes with aluminum heat sink and silicone shock-absorbing pillars, widely used for laboratory test power supply, lithium battery charging, high power LED driving, solar energy voltage regulation and various electronic DIY projects.
kernel parameter
- Input Voltage: 5.5-30V (At 5V input, step-up/step-down is possible, but voltage and current measurements are inaccurate; below 4.7V, undervoltage protection activates)
- Output Voltage: 0.5-30V
- Output Current: Can work stably at 3A long-term, up to 4A with enhanced cooling
- Output Power: 35W natural cooling, 50W enhanced cooling
- Voltage Display Resolution: 0.01V
- Current Display Resolution: 0.002A
- Conversion Efficiency: Around 88%
- Soft Start: Yes (May fail when starting with very high power loads)
- Input Reverse Polarity Protection: Yes
- Output Anti-backflow: Yes
- Short Circuit Protection: Yes
- Operating Frequency: 180KHZ
- Dimensions: LengthWidthHeight 664821mm
- Mounting Holes: Diameter 4mm
- Weight: 46g
Product Highlights
1.1 The LCD can display input/output voltage, output current, and output power;
1.2 Input reverse polarity protection, will not burn out if connected in reverse;
1.3 Capable of step-up and step-down, output voltage adjustable arbitrarily from 0.5-30V, current limit adjustable arbitrarily from 0-4A;
1.4 Output reverse current protection, no need to add an extra anti-backflow diode when charging batteries;
1.5 Button control for output ON/OFF state, and the default state on power-up can be set to ON or OFF;
1.6 Uses a buck-boost chip as the main controller, external 60V 75A MOSFET as the switching tube, dual 60V 5A SS56 Schottky diodes for rectification, 60V voltage rating, superior to the immature XL6009/LM2577 solutions on the market (many components have insufficient voltage ratings; the voltage rating of MOSFETs and Schottky diodes must be greater than the sum of input and output voltages);
1.7 Low output ripple, features LC filtering; typical value: around 100mV.
1.8 Includes a heatsink and comes with module support standoffs.
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At Muren Technology, we prioritize authenticity and traceability. Every batch undergoes strict quality inspection with full lot traceability and customs declaration support. Whether you require samples, small-batch trials, or large-volume orders, our professional team ensures accurate delivery and long-term stable cooperation.
