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

Product Details

Key Features

Applications/Uses

Parametric specs for Linear Regulators
VIN (V) (min) 2.5
VIN (V) (max) 12
Adj. VOUT (V) (min) 1.25
Adj. VOUT (V) (max) 5
Rated ILOAD (mA) 200
# Regulators 1
VDROPOUT @Rated ILOAD (V) (typ) 0.36
ICC (µA) (max) 10
Output Voltage Noise (µV RMS) (typ) 300
Ref. Bypass No
Low Batt./ Pwr. Fail Out No
POK/Reset Thresh. (V) (nom) Vout-9.5%
Watchdog No
Reverse Batt. Protect. Yes
Oper. Temp. (°C) -40 to +85
Package/Pins SOT23/6
TDFN/6
Budgetary
Price (See Notes)
0.9
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Simplified Block Diagram

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Parameters

Parametric specs for Linear Regulators
VIN (V) (min) 2.5
VIN (V) (max) 12
Adj. VOUT (V) (min) 1.25
Adj. VOUT (V) (max) 5
Rated ILOAD (mA) 200
# Regulators 1
VDROPOUT @Rated ILOAD (V) (typ) 0.36
ICC (µA) (max) 10
Output Voltage Noise (µV RMS) (typ) 300
Ref. Bypass No
Low Batt./ Pwr. Fail Out No
POK/Reset Thresh. (V) (nom) Vout-9.5%
Watchdog No
Reverse Batt. Protect. Yes
Oper. Temp. (°C) -40 to +85
Package/Pins SOT23/6
TDFN/6
Budgetary
Price (See Notes)
0.9

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

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.

Simplified Block Diagram

MAX8880, MAX8881: Typical Operating Circuit MAX8880, MAX8881: Typical Operating Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .