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Mini DC-DC Converter Adjustable Step Down Power Supply Module
Input voltage: 4.5V - 28V
Output voltage: 0.8-20V
Output current: rated current is 2A, maximum 3A (additional heatsink is required)
Conversion efficiency: Highest 96%
Output ripple: <30mV
Switching frequency: 1.5MHz heighest, 1MHz typical
Work temperature: -45°C ±85°C
Dimension: 22mm x 17mm x 4mm (L x W x H)
This can't be used to step up voltage
1 x Mini step down module