Item Type: Buck Convert Power Supply Module_x000D_ Input Voltage: 4.75 to 23V, output 3.3V /5V_x000D_ Long-Term Large Output Current: 1.3A (5V to 3.3V)_x000D_ Short-Term Large Output Current: 2A (5V to 3.3V)_x000D_ Operating Frequency of DC-DC Buck Converter Module: 1.4MHz_x000D_ Efficiency: 78-91%._x000D_ Pin Spacing: Approx. 2.54mm / 0.1in 1Made of high quality material, which can be applied to MCU development board 2Pre?regulator of linear regulator, distributed power system for stable operation 3The operating frequency of the DC?DC buck converter module is 1.4MHz, and the efficiency is as high as 78?91% 4Adopted of high quality electronic components, and accuracy process, ensure for the durability 5With 2.54mm pin spacing, the pin has good contact performance, ensure stable workingThis is a DC?DC voltage converter module, you must pay attention to:_x000D_ 1. The input voltage cannot be greater than the large input_x000D_ 2. The output power cannot be greater than the large load for a long time_x000D_ 3. Due to the power consumption of the module itself, the input power must be greater than the output power1 x Module