MAX868 Regulated / Adjustable -2x Inverting Charge Pump

Maxim

Description

19-1290; Rev 1; 2/98 Regulated, Adjustable -2x Inverting Charge Pump MAX868 General .
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 inpu.

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Datasheet Specifications

Part number: MAX868
Manufacturer: Maxim
File Size: 152.67 KB
Datasheet: MAX868_MaximIntegratedProducts.pdf
Description: Regulated / Adjustable -2x Inverting Charge Pump

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

Applications

* Small LCD Panels Cell Phones Cordless Phones Camcorders Handy-Terminals, PDAs Medical Instruments Battery-Operated Equipment Typical Operating Circuit Configuration VIN = 1.8V TO 5.5V 1µF TOP VIEW SHDN IN MAX868 GND 1 OUT C1PGND C1+ 2 3 4 5 10 FB 9 SHDN C2+ IN C2C2+ 0.1µF C2PGND GND OUT 2.2µF C

MAX868 Distributors

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MAX868 Regulated Adjustable -2x Inverting Charge Pump Maxim

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