Mini DC-DC 12-24V to 5V 3A Step Down Module Board Voltage for Buck Power SupplyMini DC-DC 12-24V To 5V 3A Step Down Power Supply Module Voltage for Buck Converter Adjustable Efficiency 97.5%Feature:Input Voltage: for DC 4.5-24VOutput Voltage: integration adjustable and fixed output,back side can choose fiexd output voltageAdjustable Range: 0.8-17V,fixed voltage (1.8V 2.5V 3.3V 5V 9V 12V)Output Current: 3A (max),actual testing input 12V output 1.5ATransform Efficiency: 97.5%(max) (6.5 to 5V 0.7A)Switch Frequency: 500KHzOutput Ripple Wave: 20mV (12V to 5V 3A) 20m band widthOperating Voltage: -40 Celsius-85 CelsiusOutput Overvoltage Protection: noStatic Current: 0.85MALoad Adjust Rate: 1%Voltage Adjust Rate: 0.5%Dynamic Response Speed: 5% 200uSOutput Short Circuit Protection: yesInput Transposition Protection: noEnable Control: yesConnecting Type: solderingInput Way: solderingOutput Way: solderingpinSoldering Hole Space: 2.54mmPackage Included:1 x Mini DC-DC 12-24V To 5V 3A Adjustable Step Down Power Module for Buck Converter