MAX8881 Datasheet | Maxim Integrated

Description The MAX8880/MAX8881 are ultra-low supply current, low-dropout linear regulators, capable of delivering up to 200m A. 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) parator 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). Both devices are available in miniature 6-pin SOT23 packages. o 3.5µA Supply Current at 12V o Reverse Battery Protection o 2.5V to 12V Input Voltage Range o ±1.5% Output Voltage Accuracy o 200m A max Output Current o 2Ω PMOS Output Device o Short-Circuit and Thermal Overload Protection o POK Output for Out-of-Regulation Indicator o Fixed 1.8V, 2.5V, 3.3V, and 5V (MAX8881) Adjustable from 1.25V to 5V (MAX8880) o Tiny 6-Pin SOT23 Package Features MAX8880/MAX8881 ________________________Applications Smoke Detectors Battery-Powered Alarms Remote Transmitters Smart Battery Packs PDAs Handy Terminals CMOS Backup Power Real-Time Clocks Typical Operating Circuit Pin Configuration TOP VIEW IN 1 6 POK VIN 2.5V TO 12V 1µF IN OUT FB VOUT 1.25V TO 5V UP TO 200m A 4.7µF ON OFF REGULATION OK SHDN GND POK GND 2 MAX8880 MAX8881 SHDN OUT 3 SOT23-6 Ordering Information PART MAX8880 EUT-T MAX8881 EUT18-T MAX8881EUT25-T MAX8881EUT33-T MAX8881EUT50-T OUTPUT Adjustable 1.8V 2.5V 3.3V 5.0V TEMP. RANGE -40 °C to +85 °C -40 °C to +85 °C -40 °C to +85 °C -40 °C to +85 °C -40 °C to +85 °C PIN-PACKAGE 6...