19-0275; Rev 0; 12/94
5 V/3 .3 V o r Ad ju s t a b le , Lo w -Dro p o u t ,
Lo w I , 2 0 0 m A Lin e a r Re g u la t o rs
Q
23/MAX84
_______________Ge n e ra l De s c rip t io n
____________________________Fe a t u re s
The MAX882/MAX883/MAX884 linear regulators maxi-
mize battery life by combining ultra-low supply currents
and low dropout voltages. They feature 200mA output
current capability at up to +125°C junction temperature
and come in a 1.5W SOIC package. The 1.5W package
(c omp a re d to 0.47W for s ta nd a rd SOIC p a c ka g e s )
allows a wider operating range for the input voltage and
output current. The MAX882/MAX883/MAX884 use a P-
channel MOSFET pass transistor to maintain a low 11µA
(15µA ma x) s up p ly c urre nt from no-loa d to the full
200mA output. Unlike earlier bipolar regulators, there are
no PNP base current losses that increase with output
current. And, in dropout, the MOSFET does not suffer
from excessive base currents that occur when PNP tran-
sistors go into saturation. Typical dropout voltages are
220mV at 5V and 200mA, or 320mV at 3.3V and 200mA.
♦ Guaranteed 200mA Output Current at
T = +125°C, with Foldback Current Limiting
J
♦ High-Power (1.5W) 8-Pin SO Package
♦ Dual Mode™ Operation: Fixed or Adjustable
Output from 1.25V to 11V
♦ Large Input Range (2.7V to 11.5V)
♦ Internal 1.1Ω P-Channel Pass Transistor
Draws No Base Current
♦ Low 220mV Dropout Voltage at 200mA
Output Current
♦ 11µA Typical Quiescent Current
♦ 1µA (max) Shutdown Mode or 7µA (typ)
The MAX882 features a 7µA standby mode that disables
the output but keeps the reference, low-battery compara-
tor, and biasing circuitry alive. The MAX883/MAX884 fea-
ture a shutdown (OFF) mode that turns off all circuitry,
re d uc ing s up p ly c urre nt to le s s tha n 1µA. All thre e
devices include a low-battery-detection comparator, fold-
back current limiting, reverse-current protection, and
thermal overload protection.
Standby Mode
♦ Low-Battery Detection Comparator
♦ Reverse-Current Protection
♦ Thermal Overload Protection
______________Ord e rin g In fo rm a t io n
The output is preset at 3.3V for the MAX882/MAX884
and 5V for the MAX883. In addition, all devices employ
Dual Mode™ operation, allowing user-adjustable outputs
from 1.25V to 11V using external resistors. The input volt-
age supply range is 2.7V to 11.5V.
PART
TEMP. RANGE
0°C to +70°C
PIN-PACKAGE
8 Plastic DIP
8 SO
MAX882CPA
MAX882CSA
MAX882C/D
MAX882EPA
MAX882ESA
MAX882MJA
0°C to +70°C
0°C to +70°C
Dice*
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
8 Plastic DIP
8 SO
For low-dropout linear regulators with output currents up
to 500mA, refer to the MAX603/MAX604 data sheet.
8 CERDIP**
________________________Ap p lic a t io n s
Ordering Information continued at end of data sheet.
* Dice are tested at T = +25°C, DC parameters only.
J
** Contact factory for availability.
Pagers and Cellular Phones
3.3V and 5V Regulators
1.25V to 11V Adjustable Regulators
High-Efficiency Linear Regulators
Battery-Powered Devices
Portable Instruments
__________Typ ic a l Op e ra t in g Circ u it
ON/OFF
OFF (STBY)
Solar-Powered Instruments
__________________P in Co n fig u ra t io n
OUTPUT
VOLTAGE
MAX882
MAX883
MAX884
IN
OUT
TOP VIEW
INPUT
VOLTAGE
LBI
1
2
3
4
8
7
6
5
LBI
LBO
SET
C
C
OUT
IN
O.1µF
2.2µF
OFF (STBY)
SET
GND
MAX882
MAX883
MAX884
BATTERY
GND
OUT
GND
IN
( ) ARE FOR MAX882
( ) ARE FOR MAX882
DIP/SO
™Dual-Mode is a trademark of Maxim Integrated Products.
________________________________________________________________ Maxim Integrated Products
1
Ca ll t o ll fre e 1 -8 0 0 -9 9 8 -8 8 0 0 fo r fre e s a m p le s o r lit e ra t u re .