Mini 360 buck converter input voltage: DC 4.75V-23V, adjustable range 1.0V-17V, max output current 3A (Please enhance heat sink for full load) Mini 360 buck Switching frequency: 340 KHz switching frequency, less than 30mV ripple (no load), MP2307 IC These mini 360 3A dc-dc voltage step down power converter use integrally molded power inductor and synchronous rectifier control chip, smaller and more efficient(96% max) Mini 360 DC buck converter 2A step down module switching frequency: 340 KHz switching frequency, less than 30mV ripple (no load), MP2307 IC The mini 360 module is suitable for DIY supplies, LED lights, micro-controllers, battery chargers, and most low power devices, 340 KHz switching frequency