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SC1109CSTR PDF预览

SC1109CSTR

更新时间: 2024-09-20 22:40:23
品牌 Logo 应用领域
商升特 - SEMTECH 稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数 文件大小 规格书
17页 222K
描述
SYNCHRONOUS PWM CONTROLLER WITH DUAL LOW DROPOUT REGULATOR CONTROLLERS

SC1109CSTR 技术参数

生命周期:Not Recommended零件包装代码:SOIC
包装说明:SOIC-16针数:16
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.75
Is Samacsys:N模拟集成电路 - 其他类型:SWITCHING CONTROLLER
控制模式:VOLTAGE-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:5.25 V最小输入电压:4.4 V
标称输入电压:5 VJESD-30 代码:R-PDSO-G16
长度:9.9 mm功能数量:1
端子数量:16最高工作温度:70 °C
最低工作温度:最大输出电流:0.5 A
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP16,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE认证状态:Not Qualified
座面最大高度:1.75 mm子类别:Switching Regulator or Controllers
表面贴装:YES切换器配置:PUSH-PULL
最大切换频率:225 kHz温度等级:COMMERCIAL
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

SC1109CSTR 数据手册

 浏览型号SC1109CSTR的Datasheet PDF文件第2页浏览型号SC1109CSTR的Datasheet PDF文件第3页浏览型号SC1109CSTR的Datasheet PDF文件第4页浏览型号SC1109CSTR的Datasheet PDF文件第5页浏览型号SC1109CSTR的Datasheet PDF文件第6页浏览型号SC1109CSTR的Datasheet PDF文件第7页 
SYNCHRONOUS PWM CONTROLLER WITH  
DUAL LOW DROPOUT REGULATOR  
CONTROLLERS  
SC1109  
PRELIMINARY - October 16, 2000  
DESCRIPTION  
FEATURES  
The SC1109 was designed for the latest high  
speed motherboards. It combines a synchronous  
voltage mode controller (switching section) with  
two low-dropout linear regulator controllers. The  
voltage mode controller provides the power  
supply for the system AGTL bus. The 1.8V and  
2.5V linear controllers power the Chipset and  
clock circuitry.  
·
·
1.8V, 2.5V linear controllers  
LDOs track input voltage within 200mV until  
regulation  
Integrated drivers  
Power Good Signal  
Soft Start  
·
·
·
·
Lossless Current Sense  
APPLICATIONS  
The SC1109 switching section features lossless  
current sensing and latched driver outputs for  
enhanced noise immunity. It operates at a fixed  
frequency of 200kHz, the output voltage is  
internally fixed at 1.2V  
·
·
Pentium® III Motherboards  
Triple power supplies  
ORDERING INFORMATION  
The SC1109 linear sections are low dropout  
regulators designed to track the 3.3V power  
supply when it turns on or off.  
Linear  
Voltage  
Temp.  
Range (TJ)  
Part Number(1)  
Package  
SC1109CSTR  
SC1109EVB  
Note:  
SO-16 1.8V/2.5V 0° to 125°C  
Evaluation Board  
(1) Only available in tape and reel packaging. A reel  
contains 1000 devices.  
TYPICAL APPLICATION CIRCUIT  
12V IN  
5V STBY  
5V IN  
C1  
0.1uF  
C2  
2x1500uF  
C3  
0.1uF  
C4  
0.1uF  
U4  
SC1109CS  
+
11  
4
3
VCC  
STBY  
C5  
0.1uF  
10  
9
BCAP+  
BST  
DH  
Q1  
R1 2.2  
R2 2.2  
C6  
0.1uF  
5
L1 4uH  
1.2V 6A  
7
BCAP-  
SS/EN  
PWRGD  
PHASE  
VTT  
14  
12  
13  
15  
16  
C7  
3x1500uF  
C8  
0.1uF  
Q2  
+
8
POWER GOOD  
DL  
6
2
1
VOSENSE GND  
C9  
0.1uF  
GATE2  
LDOS2  
GATE1  
LDOS1  
3.3V IN  
Q3  
Q4  
C10  
330uF  
+
2.5V  
1.8V  
C11  
330uF  
C12  
330uF  
+
+
1
Pentium is a registered trademark of Intel Corporation  
© 2000 SEMTECH CORP.  
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com  

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