MAX8880 Maxim, MAX8880 Datasheet
MAX8880
Manufacturer Part Number
MAX8880
Description
12V / Ultra-Low-IQ / Low-Dropout Linear Regulators with POK
Manufacturer
Maxim
Datasheet
1.MAX8880.pdf
(8 pages)
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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 main-
tains 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 pro-
vides 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.
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
19-1679; Rev 0; 4/00
________________________Applications
MAX8880EUT-T
MAX8881EUT18-T
MAX8881EUT25-T
MAX8881EUT33-T
MAX8881EUT50-T
Smoke Detectors
Battery-Powered Alarms
Remote Transmitters
Smart Battery Packs
TOP VIEW
PART
GND
OUT
IN
________________________________________________________________ Maxim Integrated Products
1
2
3
General Description
SOT23-6
MAX8880
MAX8881
Pin Configuration
PDAs
Handy Terminals
CMOS Backup Power
Real-Time Clocks
Adjustable
OUTPUT
1.8V
2.5V
3.3V
5.0V
6
5
4
POK
SHDN
FB
12V, Ultra-Low-I
Linear Regulators with POK
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
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 200mA 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)
o Tiny 6-Pin SOT23 Package
Adjustable from 1.25V to 5V (MAX8880)
2.5V TO 12V
OFF
V
IN
1µF
PIN-PACKAGE
ON
6 SOT23-6
6 SOT23-6
6 SOT23-6
6 SOT23-6
6 SOT23-6
Typical Operating Circuit
Q
IN
SHDN
, Low-Dropout
Ordering Information
MAX8881
GND
OUT
POK
FB
REGULATION OK
TOP MARK
Features
AAHR
AAHS
AAHT
AAHU
AAHV
4.7µF
V
1.25V TO 5V
UP TO 200mA
OUT
1
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