max889max889は200maまでのにしてをするチャージポンプですデバイスは2.7v~5.5vでし-2.5v~-vinのをします max889はMAX889 includes soft-start, shutdown control, short-cir-cuit, and thermal protection. The oscillator, control circuitry, and four power MOSFET. switches are included on-chip. The charge pump runs. continuously at the operating