max889The MAX889 inverting charge pump delivers a regulated negative output voltage at loads of up to 200mA. The device operates with inputs from 2.7V to 5.5V to produce an adjustable, regulatedmax889 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