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參數資料
| 型號： | MAX882 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 3.3V or Adjustable, Low-Dropout, Low IQ, 200mA Linear Regulators(3.3V/可調,250mA,具有維持方式,P溝道低壓差線性穩壓器) |
| 中文描述： | 5V/3.3V或可調、低壓差、低IQ、200mA線性穩壓器，具有待機模式 |
| 文件頁數： | 1/16頁 |
| 文件大小： | 176K |
| 代理商： | MAX882 |
_______________General Desc ription
T
he 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
(compared to 0.47W for standard SOIC packages)
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 max) supply current from no-load 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.
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,
reducing supply current to less than 1μA. All three
devices include a low-battery-detection comparator, fold-
back current limiting, reverse-current protection, and
thermal overload protection.
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.
For low-dropout linear regulators with output currents up
to 500mA, refer to the MAX603/MAX604 data sheet.
________________________Applic ations
Pagers and Cellular Phones
3.3V and 5V Regulators
1.25V to 11V Adjustable Regulators
High-Efficiency Linear Regulators
Battery-Powered Devices
Portable Instruments
Solar-Powered Instruments
__________________Pin Configuration
____________________________Features
o
Guaranteed 200mA Output Current at
T
J
= +125°C, with Foldback Current Limiting
o
High-Power (1.5W) 8-Pin SO Package
o
Dual Mode Operation: Fixed or Adjustable
Output from 1.25V to 11V
o
Large Input Range (2.7V to 11.5V)
o
Internal 1.1
P-Channel Pass Transistor
Draws No Base Current
o
Low 220mV Dropout Voltage at 200mA
Output Current
o
11μA Typical Quiescent Current
o
1μA (max) Shutdown Mode or 7μA (typ)
Standby Mode
o
Low-Battery Detection Comparator
o
Reverse-Current Protection
o
Thermal Overload Protection
______________Ordering Information
M
5V /3.3V or Adjustable, Low-Dropout,
Low I
Q
, 200mA Linear Regulators
________________________________________________________________ Maxim Integrated Products
Call toll free 1-800-998-8800 for free samples or literature.
1
__________Typic al Operating Circ uit
19-0275; Rev 0; 12/94
PART
MAX882
CPA
MAX882CSA
MAX882C/D
MAX882EPA
MAX882ESA
MAX882MJ A
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
0°C to +70°C
0°C to +70°C
TEMP. RANGE
PIN-PACKAGE
8 Plastic DIP
8 SO
Dice*
8 Plastic DIP
8 SO
8 CERDIP**
Ordering Information continued at end of data sheet.
*Dice are tested at T
J
= +25°C, DC parameters only.
**Contact factory for availability.
Dual-Mode is a trademark of Maxim Integrated Products.
MAX882
MAX883
MAX884
C
IN
O.1
μ
F
C
OUT
2.2
μ
F
OUTPUT
VOLTAGE
INPUT
VOLTAGE
BATTERY
LBI
OFF (STBY)
( ) ARE FOR MAX882
IN
OUT
GND
SET
ON/OFF
LBI
OFF (STBY)
( ) ARE FOR MAX882
GND
IN
OUT
GND
SET
LBO
DIP/SO
TOP VIEW
1
2
3
4
8
7
6
5
MAX882
MAX883
MAX884
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