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Part Number: MAX8881
Description: The MAX8880/MAX8881 are ultra-low supply current, low-dropout linear regulators, capable of delivering...
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MAX8881
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General Description
MAX8881 General Description
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 3.5A supply current extends battery life in applications with long standby periods. Unlike PNP-based designs, a 2 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 outof 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.
MAX8881 Maximum Ratings
IN to GND .............................................................-14V to +14V
SHDN to GND.............................................-0.3V to (VIN + 0.3V),
-0.3V to +0.3V when VIN < 0V
OUT, FB to GND............................-0.3V to +6V when VIN > 5.7V,
-0.3V to (VIN + 0.3V) when 0V VIN 5.7V,
-0.3V to +0.3V when VIN < 0V
POK to GND ..........................................................-0.3V to +14V
OUT Continuous Current..................................................200mA
OUT Short Circuit..........................................................Indefinite
Continuous Power Dissipation (TA = +70)
6-Pin SOT23 (derate 8.7mW/ above +70)..................696mW
Operating Temperature Range .............................-40 to +85
Junction Temperature........................................................+150
Storage Temperature...........................................-65 to +165
Lead Temperature (soldering, 10s) ...................................+300
SHDN to GND.............................................-0.3V to (VIN + 0.3V),
-0.3V to +0.3V when VIN < 0V
OUT, FB to GND............................-0.3V to +6V when VIN > 5.7V,
-0.3V to (VIN + 0.3V) when 0V VIN 5.7V,
-0.3V to +0.3V when VIN < 0V
POK to GND ..........................................................-0.3V to +14V
OUT Continuous Current..................................................200mA
OUT Short Circuit..........................................................Indefinite
Continuous Power Dissipation (TA = +70)
6-Pin SOT23 (derate 8.7mW/ above +70)..................696mW
Operating Temperature Range .............................-40 to +85
Junction Temperature........................................................+150
Storage Temperature...........................................-65 to +165
Lead Temperature (soldering, 10s) ...................................+300
MAX8881 Features
`3.5A Supply Current at 12V
`Reverse Battery Protection
`2.5V to 12V Input Voltage Range
`±1.5% Output Voltage Accuracy
`200mA max Output Current
`2 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
`Reverse Battery Protection
`2.5V to 12V Input Voltage Range
`±1.5% Output Voltage Accuracy
`200mA max Output Current
`2 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
MAX8881 Typical Application
·Smoke Detectors
·Battery-Powered Alarms
·Remote Transmitters
·Smart Battery Packs
·PDAs
·Handy Terminals
·CMOS Backup Power
·Real-Time Clocks
·Battery-Powered Alarms
·Remote Transmitters
·Smart Battery Packs
·PDAs
·Handy Terminals
·CMOS Backup Power
·Real-Time Clocks
MAX8881 Connection Diagram
MAX8881
PDF/DataSheet Download
- Datasheet: MAX8881
- File Size: 209173 KB
- Manufacturer: Maxim
- Click here to Download
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