Features: 100% brand new and high quality Low power consumption,Low ESR Cap.Compatible DD0403MA Series LDO Module,Very suitable for lithium battery-powered Long time maximum output current 300mA Short time maximum output current 400mA Applications: 3.3V MCU ARM CPU FPGA/CPLD ,5V 3.7V TO 3.3V lithium battery-powered systems ,3.3V Motor Toy ,WIFI esp8266 Module ,CCTV camera ,Wireless Module:Nrf24l01 CC1101 CC2500 CC2530 Zigbee ,Smart home / home automation ,Battery Charger ,Pre-Regulator for Linear Regulators ,FM radio ,Battery powered equipment ,Audio amplifier Specification: Input voltage :DC 3.5-6v Output voltage :DC 3.3v The maximum output current for a long time is 300mA The maximum output current in short time is 400mA High precision: plus or minus 2% Resting current :8uA Short circuit current :30mA Current protection :500mA Working temperature: 25~ + 85 Weight: Approx.0.5g/0oz Package list: 1 x Buck Regulator Module Attention : This is a DC-DC voltage converter module,Must be noted when using: 1 Input voltage can not be greater than the maximum input range 2 Output power can not be greater than the maximum load for a long time 3 Input power must be greater than the output power, because the power consumption of the module itself