19-1679; Rev 0; 4/00
12VLinear Regulators with POK
, Ultra-Low-IQ, Low-Dropout
General Description
Features
The MAX8880/MAX8881 are ultra-low supply current,low-dropout linear regulators, capable of delivering upo3.5µA Supply Current at 12Vto 200mA. They are designed for battery-poweredoReverse Battery Protectionapplications where reverse battery protection and longbattery life are critical.
o2.5V to 12V Input Voltage RangeThese regulators’ low 3.5µA supply current extendso±1.5% Output Voltage Accuracybattery life in applications with long standby periods.Unlike PNP-based designs, a 2 PMOS device main-o200mA max Output Currenttains ultra-low supply current throughout the entireo2 PMOS Output Device
operating range and in dropout. The parts are internallyprotected from output short circuits, reverse batteryoShort-Circuit and Thermal Overload Protectionconnection, and thermal overload. An internal power-oPOK Output for Out-of-Regulation IndicatorOK (POK) comparator indicates when the output is outof regulation.
oFixed 1.8V, 2.5V, 3.3V, and 5V (MAX8881)Adjustable from 1.25V to 5V (MAX8880)The MAX8880 output is adjustable from 1.25V to 5Vusing an external resistor-divider. The MAX8881 pro-oTiny 6-Pin SOT23 Package
vides only factory-preset output voltages of 1.8V, 2.5V,3.3V, or 5V (see Ordering Information). Both devicesare available in miniature 6-pin SOT23 packages.
________________________Applications
Smoke Detectors
PDAs
Battery-Powered AlarmsHandy Terminals
Remote TransmittersCMOS Backup PowerSmart Battery Packs
Real-Time Clocks
Pin Configuration
For free samples and the latest literature, visit http://doc.xuehai.net or phone 1-800-998-8800.For small orders, phone 1-800-835-8769.
MAX8880/MAX8881
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