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SC1112STRT PDF预览

SC1112STRT

更新时间: 2024-01-29 03:00:36
品牌 Logo 应用领域
商升特 - SEMTECH 稳压器控制器
页数 文件大小 规格书
23页 354K
描述
Triple Low Dropout Regulator Controllers

SC1112STRT 技术参数

是否无铅:不含铅是否Rohs认证:符合
生命周期:Obsolete零件包装代码:TSSOP
包装说明:TSSOP-16针数:16
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.7
Is Samacsys:N其他特性:ALSO CONTAINS A CHARGE PUMP
模拟集成电路 - 其他类型:DUAL SWITCHING CONTROLLER最大输入电压:5.25 V
最小输入电压:4.75 V标称输入电压:5 V
JESD-30 代码:R-PDSO-G16JESD-609代码:e3
长度:5 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:封装主体材料:PLASTIC/EPOXY
封装代码:TSSOP封装等效代码:TSSOP16,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):NOT SPECIFIED电源:5 V
认证状态:Not Qualified座面最大高度:1.2 mm
子类别:Power Management Circuits最大供电电流 (Isup):12 mA
标称供电电压 (Vsup):5 V表面贴装:YES
切换器配置:PUSH-PULL温度等级:COMMERCIAL
端子面层:MATTE TIN端子形式:GULL WING
端子节距:0.65 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:4.4 mm
Base Number Matches:1

SC1112STRT 数据手册

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SC1112  
Triple Low Dropout  
Regulator Controllers  
POWER MANAGEMENT  
Features  
Description  
The SC1112 was designed for the latest high speed  
motherboards. It includes three low dropout regulator con-  
trollers. The controllers provide the power for the system  
AGTL bus Termination Voltage, Chipset, and clock circuitry.  
‹ Triple linear controllers  
‹ Selectable and adjustable output voltages  
‹ LDOs track input voltage within 200mV (Function of  
the MOSFETs used) until regulation  
‹ Integrated charge pump  
An adjustable controller with a 1.2V reference is available,  
while two selectable outputs are provided for the VTT  
(1.25 V or 1.5V, SC1112) or (1.2V or 1.5V, SC1112A)  
and the AGP (1.5V or 3.3V). The SC1112 low dropout  
regulators are designed to track the 3.3V power supply  
as the VTTIN supply is cycled On and Off. A latched short  
circuit protection is also available for the VTT output.  
‹ Programmable power good delay signal  
‹ Latched over current protection (VTT)  
‹ Pb-free package available, fully WEEE and RoHS  
compliant  
Applications  
‹ Pentium® III Motherboards  
‹ Triple power supplies  
Other features include an integrated charge pump that  
provides adequate gate drives for the external MOSFETs,  
and a capacitive programable delay for the power good  
signal.  
Typical Application Circuit  
+3.3V  
VTT  
+5V STBY  
1K  
R1  
C1  
10u  
C3  
SC1112/A  
POWER GOOD  
0.1u  
C6  
5VSTBY  
ADJGATE  
ADJSEN  
CAP-  
GND  
AGPGATE  
AGPSEN  
VTTGATE  
VTTSEN  
AGPSEL  
VTTSEL  
VTTIN  
330u  
Q2  
Q3  
C14  
330u  
AGP  
VTT  
ADJ  
0.1u  
C11  
C2 C18  
330u  
Q1  
C16  
C17  
0.1u  
330u  
CAP+  
RA  
RB  
1u  
C10  
C5  
FC  
DELAY  
PWRGD  
22n  
C19  
C8  
330u  
C9  
C13  
0.1u  
C12  
330u  
330u  
0.1u  
VTT SELECT Signal  
AGP SELECT Signal  
1
www.semtech.com  
Revision: August 30, 2006  

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