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MAX682

更新时间： 2024-11-18 22:55:15
品牌 Logo 应用领域
美信 - MAXIM 泵
页数 文件大小 规格书
12页 155K
描述
3.3V-Input to Regulated 5V-Output Charge Pumps

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MAX682 数据手册

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19-0177; Rev 1; 8/98  
3 .3 V-In p u t t o Re g u la t e d 5 V-Ou t p u t  
Ch a rg e P u m p s  
23/MAX684  
Ge n e ra l De s c rip t io n  
Fe a t u re s  
The MAX682/MAX683/MAX684 charge-pump regula-  
tors generate 5V from a 2.7V to 5.5V input. They are  
specifically designed to serve as high-efficiency auxil-  
iary supplies in applications that demand a compact  
design. The MAX682, MAX683, and MAX684 deliver  
250mA, 100mA, and 50mA output current, respectively.  
♦ Ultra-Small: 1µF Capacitors per 100mA of Output  
Current  
♦ No Inductors Required  
♦ 1.1mm Height in µMAX Package (MAX683/MAX684)  
♦ Up to 250mA Output Current (MAX682)  
♦ Regulated ±4% Output Voltage  
These complete 5V regulators require only one resistor  
and three external capacitors—no inductors are need-  
ed. High switching frequencies (externally adjustable  
up to 2MHz) and a unique regulation scheme allow the  
use of capacitors as small as 1µF per 100mA of output  
current. The MAX683/MAX684 are offered in a space-  
saving 8-pin µMAX package that is only 1.1mm high,  
while the MAX682 is available in an 8-pin SO.  
♦ 50kHz to 2MHz Adjustable Switching Frequency  
♦ 2.7V to 5.5V Input Voltage  
♦ 100µA Quiescent Current in Pulse-Skipping Mode  
♦ 0.1µA Shutdown Current  
Ap p lic a t io n s  
Flash Memory Supplies  
Ord e rin g In fo rm a t io n  
Battery-Powered Applications  
Miniature Equipment  
PART  
MAX682ESA  
MAX683EUA  
MAX684EUA  
TEMP. RANGE  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
PIN-PACKAGE  
8 SO  
PCMCIA Cards  
8 µMAX  
3.3V to 5V Local Conversion Applications  
Backup-Battery Boost Converters  
3V to 5V GSM SIMM Cards  
8 µMAX  
Typ ic a l Op e ra t in g Circ u it  
P in Co n fig u ra t io n s  
TOP VIEW  
CXN  
CXP  
SKIP  
SHDN  
IN  
1
2
3
4
8
7
6
5
OUT  
CXP SHDN  
CXN IN  
PGND GND  
SKIP  
1
2
3
4
8
7
6
5
OUT  
CXP  
MAX682  
INPUT  
2.7V TO 5.5V  
OUTPUT  
5V/250mA  
IN  
SKIP  
OUT  
MAX682  
MAX683  
MAX684  
CXN  
PGND  
R
EXT  
GND  
SHDN  
GND  
PGND  
SO  
µMAX  
________________________________________________________________ Maxim Integrated Products  
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.  
For small orders, phone 408-737-7600 ext. 3468.  
1234567...12

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