max889max889 icは(200maまで)をするチャージポンプですデバイスは+2.7v~+5.5vのでし-2.5v~-vinのなをします3. MAX889, MAX168x and other have a VERY LIMITED CURRENT, because of their limited power dissipation to 471mW at 70C. This allows for around 40mA with MAX1680.