This is a MP1584EN DC-DC power module, 3A step-down module, ultra-small DC to DC step-down module, 24V To 12v 9V 5V 3V fixed output.
Input voltage: 4.5 V to 28 V; Output voltage: 0.8 V to 20 V.
Output current: 3 A (maximum); Conversion efficiency: 92% (maximum).
Operating temperature: -45 ℃ to 85 ℃; Size: 22 mm by 17 mm by 4 mm; Warning: do not reverse the positive and negative terminals to avoid any possible damage; Do not use light load (less than 10% of output power) or without load.
Output ripple: less than 30 mV; Switching frequency: 1.5 MHz (highest), typically 1 MHz.
Package contains:
5x Adjustable Power Step-Down Module
Precautions of use: To avoid possible damage, please do not reserve the positive and negative terminals. Please do not use without load or light load which is less than 10% of the output power.