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MAX8880：12V, Ultra-Low-IQ, Low-Dropout Linear Regulators with POK

The MAX8880/MAX8881 are ultra-low supply current, low-dropout linear regulators, capable of delivering up to 200mA. They are designed for battery-powered applications where reverse battery protection and long battery life are critical. These regulators' low 3.5µA supply current extends battery life in applications with long standby periods. Unlike PNP-based designs, a 2Ω PMOS device maintains ultra-low supply current throughout the entire operating range and in dropout. The parts are internally protected from output short circuits, reverse battery connection, and thermal overload. An internal power-OK (POK) comparator indicates when the output is out of regulation. The MAX8880 output is adjustable from 1.25V to 5V using an external resistor-divider. The MAX8881 provides only factory-preset output voltages of 1.8V, 2.5V, 3.3V, or 5V (see Ordering Information in the full data sheet). The devices are available in 6-pin SOT23 and 6-pin TDFN packages.

Key Features 3.5µA Supply Current at 12V Reverse Battery Protection 2.5V to 12V Input Voltage Range ±1.5% Output Voltage Accuracy 200mA max Output Current 2Ω PMOS Output Device Short-Circuit and Thermal Overload Protection POK Output for Out-of-Regulation Indicator Fixed 1.8V, 2.5V, 3.3V, and 5V (MAX8881) Adjustable from 1.25V to 5V (MAX8880) Tiny 6-Pin SOT23 Package Thin 6-Pin TDFN Package

MAX8880, MAX8881: Typical Operating Circuit Applications/Uses Battery-Powered Alarms CMOS Backup Power Handy Terminals PDAs Real-Time Clocks Remote Transmitters Smart Battery Packs/Chargers Smoke Detectors

DataSheet

Parametrics

Quality and Environmental Data

• MAX8880.pdf

Ordering Information