max889The 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 userHh PSRR, Low-Dropout, 150mA ar Regulators 2 Maxim Integrated MAX8891MAX8892 ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS (VIN = VOUT + 0.5V,