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MAX883C

更新时间： 2024-09-12 11:14:31
品牌 Logo 应用领域
美信 - MAXIM 稳压器
页数 文件大小 规格书
17页 364K
描述
5V/3.3V or Adjustable, Low-Dropout, Low IQ, 200mA Linear Regulators

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MAX883C 数据手册

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19-0275; Rev 4; 7/09  
5V/3.3V or Adjustable, Low-Dropout,  
Low I , 200mA Linear Regulators  
Q
23/MAX84  
General Description  
Features  
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  
(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. In dropout, the MOSFET does not suffer from  
excessive base currents that occur when PNP transistors  
go into saturation. Typical dropout voltages are 220mV  
at 5V and 200mA, or 320mV at 3.3V and 200mA.  
o 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 1.1Ω p-Channel Pass Transistor  
Draws No Base Current  
o Low 220mV Dropout Voltage at 200mA  
Output Current  
o 11µA (typ) Quiescent Current  
o 1µA (max) Shutdown Mode or 7µA (typ)  
Standby Mode  
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.  
o Low-Battery Detection Comparator  
o Reverse-Current Protection  
o Thermal-Overload Protection  
Ordering Information  
PIN-  
PACKAGE  
PART  
TEMP RANGE  
MAX882CPA  
MAX882CSA  
MAX882C/D  
MAX882EPA  
MAX882ESA  
0°C to +70°C  
0°C to +70°C  
0°C to +70°C  
-40°C to +85°C  
-40°C to +85°C  
8 PDIP  
8 SO  
Dice*  
8 PDIP  
8 SO  
For low-dropout linear regulators with output currents up  
to 500mA, refer to the MAX603/MAX604 data sheet.  
Applications  
Ordering Information continued at end of data sheet.  
*Dice are tested at T = +25°C, DC parameters only.  
J
Pagers and Cellular Phones  
3.3V and 5V Regulators  
**Contact factory for availability.  
1.25V to 11V Adjustable Regulators  
High-Efficiency Linear Regulators  
Battery-Powered Devices  
Portable Instruments  
Typical Operating Circuit  
ON/OFF  
OFF (STBY)  
Solar-Powered Instruments  
Pin Configuration  
OUTPUT  
VOLTAGE  
MAX882  
MAX883  
MAX884  
TOP VIEW  
IN  
OUT  
INPUT  
VOLTAGE  
LBI  
1
2
3
4
8
7
6
5
LBI  
LBO  
SET  
C
C
OUT  
IN  
OFF (STBY)  
O.1μF  
2.2μF  
MAX882  
MAX883  
MAX884  
SET  
GND  
BATTERY  
GND  
OUT  
GND  
IN  
( ) ARE FOR MAX882.  
( ) ARE FOR MAX882.  
DIP/SO  
Dual Mode is a trademark of Maxim Integrated Products, Inc.  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,  
or visit Maxim's website at www.maxim-ic.com.  
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