MAX8880

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


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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 3.5µA 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.
MAX8880, MAX8881: Typical Operating Circuit MAX8880, MAX8881: Typical Operating Circuit Enlarge+

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

Applications/Uses

  • Battery-Powered Alarms
  • CMOS Backup Power
  • Handy Terminals
  • PDAs
  • Real-Time Clocks
  • Remote Transmitters
  • Smart Battery Packs/Chargers
  • Smoke Detectors
Part NumberRegulatorsVIN
(V)
VIN
(V)
Preset VOUT
(V)
Adj. VOUT
(V)
Adj. VOUT
(V)
VDROPOUT @Rated ILOAD
(V)
Rated ILOAD
(mA)
Rated ILOAD
(mA)
ICC
(µA)
Output Voltage Noise
(µV RMS)
Ref. BypassLow Batt./ Pwr. Fail OutPOK/Reset Thresh.
(V)
WatchdogReverse Batt. Protect.Oper. Temp.
(°C)
Package/PinsBudgetary
Price
minmaxminmaxtypmaxtypnomSee Notes
MAX8880 12.512-1.2550.3620020010300NoNoVout-9.5%NoYes-40 to +85
SOT-23/6
SOT/6
TDFN-EP/6
$0.86 @1k
MAX8881 
1.8
2.5
3.3
5
--
SOT-23/6
SOT/6
See All Linear Regulators (144)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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