이 칩은 low battery detection, 2A internal switch, synchronous conversion, 높은 효율, 700khz 고주파 동작 등의 멋진 기능을 가지고 있습니다. (특징 섹션 참조)
USB를 통해 전원을 공급하고자 할 경우 USB A 커넥터를 보드에 납땜하셔야 합니다. 터미널 블럭 납땜시에는 3.5mm 2pin을 납땜하셔야 합니다.
특징
Synchronous operation means you can disconnect the output completely by connecting the ENable pin to ground. This will completely turn off the output
2A internal switch (~2.5A peak limiting) means you can get 500mA+ from as low as 1.8V, 750mA+ from 2 NiMH or Alkaline batteries, and at least 1000mA from a 3.7V LiPoly/LiIon battery or 3 NiMH/Alkalines.
Low battery indicator LED lights up red when the voltage dips below 3.2V, optimized for the most common usage of LiPo/LiIon battery usage
On-board 500mA charge-rate 'Apple/iOS' data resistors. Solder in the included USB connector and you can plug in any iPhone or iPod for 500mA charge rate. Not suggested for iPad (which really needs 1A charge rate).
Full breakout for battery in, control pins and power out
90%+ operating efficiency in most cases (see datasheet for efficiency graphs), and low quiescent current: 5mA when enabled and power LED is on, 20uA when disabled (power and low batt LED are off)
