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 MAX8880ETT 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.
Feature
- 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
Applications
- Battery-Powered Alarms
- CMOS Backup Power
- Handy Terminals
- PDAs
- Real-Time Clocks
- Remote Transmitters
- Smart Battery Packs/Chargers
- Smoke Detectors
