3Pcs 3V To 5V 1A USB Charger DC-DC Converter Step Up Boost Module For Phone MP3 MP4

Features Module uses the Taiwan production boost chip high efficiency up to 92 plus built in over current protection chip can be more good to protect the module and use the device after the class Module with undervoltage protection undervoltage protection into state below 2 5V can be more better protect the battery to avoid excessive discharge Module can modify the fixed resistor adjusts the output voltage can be adjusted up to 12V output but to ensure that the output power of less than 5W This module uses multilayer ceramic capacitors as main filter capacitor the output ripple can be as low as 20mV 5V1A output case This module uses a standard USB interface you can use all universal USB charging mobile phones MP3 MP4 and other equipment the perfect support for IPHONE and other mobile phone Specification Module properties Non isolated step up module BOOST Input voltage 2 5 6VOutput voltage 4 12 V Adjustable need to replacing the resistance to adjustable the default 5 v Output current 1000mA Max Efficiency 92 Max the higher the input voltage the higher the efficiency Switching frequency 1MHzOutput ripple 20mV MAX Operating temperature Industrial 40c to 85c Voltage regulation 2 5 Short circuit protection None please use the lithium battery with protection Input IN postive IN negativeOutput USB outputSize 3 x 1 3 x 0 8cmApplication This module can be used for DIY mobile power output enabling single or two ordinary lithium battery