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SC1545CSTR PDF预览

SC1545CSTR

更新时间: 2024-11-09 12:58:27
品牌 Logo 应用领域
商升特 - SEMTECH /
页数 文件大小 规格书
8页 86K
描述
Fixed Positive LDO Regulator, 2.525V, PDSO8, SO-8

SC1545CSTR 技术参数

生命周期:Obsolete零件包装代码:SOIC
包装说明:SOP,针数:8
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.55
最大输入电压:5.3 V最小输入电压:4.7 V
JESD-30 代码:R-PDSO-G8长度:4.9 mm
功能数量:1端子数量:8
工作温度TJ-Max:125 °C工作温度TJ-Min:
最大输出电流 1:0.5 A最大输出电压 1:2.5881 V
最小输出电压 1:2.4618 V标称输出电压 1:2.525 V
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
认证状态:Not Qualified调节器类型:FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
座面最大高度:1.75 mm表面贴装:YES
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL宽度:3.9 mm
Base Number Matches:1

SC1545CSTR 数据手册

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500mA SmartLDOTM With Power Up  
Signal Sequencing  
SC1545  
PRELIMINARY - January 17, 2000  
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com  
DESCRIPTION  
FEATURES  
The SC1545 was designed for instantly available moth-  
erboard applications. As part of the Semtech family of  
SmartLDO’s it provides additional control functions not  
available in a standard LDO.  
500mA LDO with Over Current Protection (OCP)  
±2.5% LDO regulation over line, load and  
temperature  
Power sequencing for three supplies  
The device provides the capability to control three sep-  
arate supplies. There is an on-board 500mA, 2.5V  
LDO with current limit protection, and drive pins for an  
N-channel MOSFET and a P-channel MOSFET. Inter-  
nal logic circuitry ensures that the system starts up in a  
controlled manner, and that the correct outputs are en-  
abled during specific sequences of BF_CUT and SLP.  
APPLICATIONS  
Instantly available motherboards  
Embedded systems  
Desktop computers  
The LDO draws its power from the 5V standby supply,  
and the N-channel MOSFET drive is derived from the  
12V supply.  
ORDERING INFORMATION  
Part Number(1)  
The SC1545 is available in the surface mount SO-8  
package.  
Package  
SC1545CS  
SO-8  
Note:  
(1) Add suffix ‘TR’ for tape and reel packaging.  
TYPICAL APPLICATION CIRCUIT  
2.5V IN  
3.3V IN  
Q1  
Q2  
3.3V OUT  
2.5V OUT  
Si4410  
IRLMS6802  
C1  
2 x 100uF  
C2  
100uF  
C3  
2 x 100uF  
C4  
100uF  
U1  
1
2
3
4
8
7
6
5
VO  
5VSTBY  
5V STANDBY  
12V IN  
2.5V OUT  
GND  
PDR  
NDR  
12VIN  
BF_CUT  
SLP  
BF_CUT  
SLP  
C5  
10uF  
C6  
1uF  
C7  
0.1uF  
SC1545  
1
© 2000 SEMTECH CORP.  
652 MITCHELL ROAD NEWBURY PARK CA 91320  

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