●The DC-DC power module is automatically raised or lowered to support the shut-off function. ●Input voltage: DC3-15V, Output voltage: DC3.3V, max. Output Current: 0.6A, Conversion Efficiency: 75% ●Perfect for powering projects with rechargeable batteries, maintains a constant voltage when the battery discharges. For example: communication equipment, digital radio, industrial motherboards, model airplanes, microcontroller motherboards, household electrical appliances etc. ●To turn on, EN must be connected to VCin+. ●Size: 17 x 13 mm/0.66 x 0.51 inches.