Mini DC-DC Buck Step-Down Module 4.5-24V to 1.8-12V 3A
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Prices updated: 13 Oct 2026
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About this product
This mini DC-DC buck step-down module accepts a 4.5 to 24 V input and offers an adjustable output or fixed outputs of 1.8 V, 2.5 V, 5 V, 9 V and 12 V, with a maximum output current of 3 A. Its 20 × 11 × 5 mm size and 0.85 mA quiescent current suit compact battery-powered projects and 12 V vehicle electronics.
Specifications
- Input voltage
- 4.5V to 24V
- Output voltage
- Adjustable, or fixed 1.8V, 2.5V, 5V, 9V, 12V
- Maximum output current
- 3A
- Long-term output current
- 2.1A
- Quiescent current
- 0.85 mA
- Dimensions
- 20 × 11 × 5 mm
Frequently asked questions
Can it run from a 12V car battery?
Yes, the 12V vehicle supply is within the 4.5 to 24V input range. The listing notes it can be connected to a cigarette lighter or ACC line without an extra switch.
How do I get a fixed output voltage?
The listing offers both adjustable and fixed outputs. Check the module's markings or version to confirm the fixed value supplied, and measure the output with a multimeter before connecting your load.
