Feature:1. DC-DC step-down conversion module, input 3.3-5.5V to 3.3V, the accuracy is ±2.0%2. Small size and high power, the module has stable performance3. Static current reaches 20UA, maximum conversion efficiency is up to 97%4. With over temperature protection, input under voltage protection, soft start and output short circuit protection5. Adopted of high quality electronic components, and accuracy process, ensure for the durabilitySpecification:Item Type: Step Down ModuleInput: 3.3-5.5V, Output: 3.3V (accuracy ± 2.0%)Maximum Long-term Output Current: 1.8AShort Time Maximum Output Current: 2.2AConversion Efficiency: Up to 97% ( at 4.2V to 3.3V / 500MA)Low Quiescent Operating Current: 20uAMaximum input voltage cannot exceed 6VInput 3.5V / 1.4A; Output 3.3V / 1.5AInput 3.7V / 1.89A; Output 3.3V / 2AInput 4.2V / 1.67A; Output 3.3V / 2AInput 4.5V / 1.46A; Output 3.3V / 2AInput 5V / 1.4A; Output 3.3V / 2AWorking Temperature: -40~+ 85℃Size: Approx. 15 x 11 x 5.7mm / 0.6 x 0.4 x 0.2in(no pin)Optional Style: with Pin, without Pin.Package List:2 x Step Down Moudle Note:This is a voltage step-down conversion module, and the following conditions must be observed when using it:1. The input voltage cannot be higher than the nominal voltage, otherwise the module will be burned2. The input power must be greater than the output power, otherwise the output voltage will be less than the nominal voltage.3. The output load cannot be greater than the nominal load, otherwise the output voltage will be less than the nominal voltage.