MAX868 Datasheet (Maxim) - Regulated / Adjustable -2x Inverting Charge Pump

MAX868, Regulated / Adjustable -2x Inverting Charge Pump

The MAX868 inverting charge pump provides a low-cost and compact means of generating a regulated negative voltage up to -2 x V IN from a positive input voltage between 1.8V and 5.5V.

It uses a pulse-frequencymodulation (PFM) control scheme to generate the regulated negative output voltage.

PFM opera

MAX868 Features

* o Regulated Negative Output Voltage (up to -2 x VIN) o Ultra-Small, 10-Pin µMAX Package o On-Demand Switching at up to 450kHz o 30µA Quiescent Supply Current o Requires Only Four Small External Capacitors o 1.8V to 5.5V Input Voltage Range o 0.1µA Logic-Controlled Shutdown o Up to 30mA Output Curren