max889Download MAX889 Datasheet. File Size: 301.33 Kbytes. Part #: MAX889. Description: Hh-Frequency, Regulated, 200mA, Inverting Charge Pump. Manufacturer: Maxim IntegratedThe 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,