Features 1、The maximum output current is 4A, and the short-term maximum output current is 5A 2、DC-DC step-down conversion module, the conversion efficiency is 77-93% 3、With thermal shutdown, input undervoltage protection, overcurrent protection and output short circuit protection function 4、Available in six styles specifications for choice 5、Including 2pcs step-down module, fine processing can make sure the stability of the module Specification Item Type: Step-Down Module Specification(optional): 3V: Input DC 5 ~ 18V, output DC 3V 3.3V: Input DC 5 ~ 18V, output DC 3.3V 3.7V: Input DC 5 ~ 18V, output DC 3.7V 4.2V: Input DC 5 ~ 18V, output DC 4.2V 5V: Input DC 6 ~ 18V, output DC 5V 6V: Input DC 7 ~ 18V, output DC 6V Working Frequency: 500KHZ Conversion Efficiency: 77-93% Static Working Current: 216-18mA Operating Temperature: –40℃ to + 85℃ Size: Approx. 27 x 18 x 5mm / 1.1 x 0.7 x 0.2in How to Drive A Motor : 1. Motor drive 2. Positive and negative series diodes Package List 2 x Step-Down Module