3A Adjustable DC-DC Buck Step-Down Module MP1584EN
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Prices updated: 13 Oct 2026
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About this product
An adjustable step-down (buck) DC-DC regulator module rated for up to 3A output, based on the MP1584EN controller. It accepts 4.5V to 28V input and can be set to output 0.8V to 20V, making it useful for powering 12V, 5V or 3.3V electronics from a higher-voltage source such as a 24V supply.
Specifications
- Input voltage
- 4.5V – 28V / 4.5 – 28 فولت
- Output voltage (adjustable)
- 0.8V – 20V / 0.8 – 20 فولت
- Maximum output current
- 3A / 3 أمبير
- Switching frequency
- 1.5MHz max, 1MHz typical / 1.5 ميجاهرتز كحد أقصى، 1 ميجاهرتز نموذجي
- Conversion efficiency
- Up to 96% / حتى 96%
- Output ripple
- Less than 30mV / أقل من 30 ملي فولت
Frequently asked questions
How do I set the output voltage?
Connect the input supply, leave the load disconnected, and turn the adjustment potentiometer while measuring the output with a multimeter until you reach the voltage you need. Then connect your load.
Does the input voltage need to be higher than the output?
Yes. As a buck converter, the input must be higher than the output you set, with some headroom. For example, a 24V input can produce a 12V or 5V output.
