Applications:Low-Power Wifi Module:ESP8266Low-power Bluetooth module : HC-05 HC-06Low-power Wireless UART module : HC-11 HC-12Low-power wireless module : CC1101 CC2500 Nrf24l01+Low-power LED DriverDescription:Low Noise, Regulated Charge Pump DCDC Converter2 in 1 DC-DC Step-Down & Step-Up Converter module1. Fixed 3.3V+-4% Output2. Voltage Input Range: 1.8~5V ( You can use two of this module to use the 1.2V NiMH batteries).3. Long time maximum output current 100mA4. Short time maximum output current 150mA5. working frequency 1.2MHz.6. Short-Circuit Protection7. No load input current : 0.65mA8. 2.54mm pin pitch, for Breadboard MCU Development Board friendly9. Excluding Pin Size 11mm x 7.62mm x 4.5mm(small)10. Weight : about 0.5gAttention:This is a DC-DC voltage converter module, must be noted when using:1. Input voltage can not be greater than the maximum input range2. Output power can not be greater than the maximum load for a long time3. Input power must be greater than the output power, because the power consumption of the module itselfPackage includes:10 x Module