20pcs 4.5V - 24V To 0.8V-12V DC-DC Buck Step Down Converter Adjustable Power Module

Specification Material Circuit BoardColor RedSize 17mmx10mmInput Voltage 4 5V 24VOutput Adjust Voltage 0 8V 12VOutput Fixed Voltage 3 3V 5V 9V 12V just need to shorting pads Output Current 3A Max Long Time Working Current 2 1AConversion Efficiency 97 5 Maximum 6 5V to 5V 0 7A Switch Frequency 500kHZOutput Ripple 20mV 12V to 5V 3A Welding Hole Spacing 2 54mmLoad Regulation 1 Voltage Regulation rate 0 5 Dynamic Response Speed 5 200uSOutput Short Circuit Protection YESInput Reverse Protection No Enable control high level work the low level not work the high level of 2 5V the low level of about 0V Default internal pull up to the input positive Application areas DIY mobile power monitor power supply embed regulator camera power supply car power communications equipment supply Vehicle mounted power supply Security monitoring Industrial control board Household electrical appliances etc Features The maximum output current 3A a long time running 2 1A the margin is sufficient 3A run for about 20 seconds into the chip to protect against overheating can be cooled by the chip cooling work in 3A current the use of new design circuit design does not require electrolytic capacitors and tantalum capacitors electrolytic capacitor life is short tantalum capacitor explosion risk Using the current high end circuit on the use of large size solid state ceramic capacitors MCC 3pcs The use of non isolated DC synchronous rectification cir