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SC1563ISK-3.1 PDF预览

SC1563ISK-3.1

更新时间: 2024-11-20 22:32:39
品牌 Logo 应用领域
商升特 - SEMTECH 稳压器
页数 文件大小 规格书
8页 99K
描述
VERY LOW DROPOUT, LOW QUIESCENT 500mA REGULATOR

SC1563ISK-3.1 数据手册

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VERY LOW DROPOUT, LOW  
QUIESCENT 500mA REGULATOR  
SC1563  
PRELIMINARY - September 11, 2000  
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com  
DESCRIPTION  
FEATURES  
= 450mV dropout @ 500mA  
The SC1563 is a high performance positive voltage  
regulator designed for use in applications requiring  
very low dropout voltage at up to 500 milliamps. Since  
it has superior dropout characteristics compared to  
regular LDOs, it can be used to supply 2.5V on  
motherboards or 2.8V on peripheral cards from the  
3.3V supply with no heatsink. Additionally, the SC1563  
has a shutdown pin, to further reduce power  
dissipation while shut down. The SC1563 provides  
excellent regulation over variations in line, load and  
temperature.  
= Designed to operate with ceramic capacitors  
= Adjustable output from 1.200V to 3.3V  
= Multiple output voltage options (all parts also  
adjustable externally using resistors)  
= Over current and over temperature protection  
= Enable pin  
= 1µA quiescent current in shutdown  
= Low reverse leakage (output to input)  
= Full industrial temperature range  
APPLICATIONS  
= Battery powered systems  
= Motherboards  
= Peripheral cards  
= PCMCIA cards  
The SC1563 is available as a five terminal fixed or  
adjustable output voltage device with enable. The  
device is available in a 5-pin SOT-23 package and an  
8-pin MSOP package for higher power dissipation/  
lower junction temperature.  
ORDERING INFORMATION  
DEVICE(1)(2)(3)  
SC1563ISK-X.XTR  
SC1563IMS-X.XTR  
PACKAGE  
SOT-23-5L  
MSOP-8  
Notes:  
(1) Where -X.X denotes voltage options. Available  
voltages are: 1.8V, 2.5V, 2.8V, 3.0V, 3.1V and 3.3V.  
(2) Output voltage can be adjusted using external re-  
sistors, see Pin Description.  
(3) Only available in tape and reel packaging. A reel  
contains 2500 devices (MSOP-8) or 3000 devices  
(SOT-23-5L).  
TYPICAL APPLICATION  
Internally Preset Output Voltage  
Externally Set Output Voltage  
U1  
SC1563ISK-X.X  
VO  
U1  
SC1563ISK-X.X  
VO  
5
1
4
5
1
4
VIN  
VO (X.XV)  
VIN  
VO  
VIN  
VIN  
R1  
R2  
SHDN  
SHDN  
GND ADJ  
GND ADJ  
SHDN  
SHDN  
2
3
2
3
C1  
C2  
C1  
C2  
1.200 (R1 + R2)  
VO  
=
Volts  
R2  
1
© 2000 SEMTECH CORP.  
652 MITCHELL ROAD NEWBURY PARK CA 91320  

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