max889The MAX889 is a hh-frequency, regulated, 200mA, inverting charge pump that produces a negative output voltage from inputs of 2.7V to 5.5V. It features a logic-controlled shutdownMAX889 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