max889Integrated Cellular RF-Section Power-Management IC, MAX8890 Datasheet, MAX8890 circuit, MAX8890 data sheet : MAXIM, , Datasheet, Datasheet search site for ElectronicThe MAX889 IC is an inverting charge pump that deliv-ers a regulated negative output voltage at loads up to 200mA. The device operates from an input of +2.7V to +5.5V to produce a user