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SC431LC5SK25TRT PDF预览

SC431LC5SK25TRT

更新时间： 2024-09-14 06:10:15
品牌 Logo 应用领域
商升特 - SEMTECH 稳压器电源电路参考电压源光电二极管输出元件
页数 文件大小 规格书
10页 209K
描述
Low Voltage Adjustable Shunt Regulator

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中文翻译

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SC431LC5SK25TRT 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：SOT-23
包装说明：LSSOP, TSOP5/6,.11,37针数：5
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.66
Is Samacsys：N其他特性：OUTPUT VOLTAGE ADJUSTABLE FROM 1.24V TO 20V
模拟集成电路 - 其他类型：TWO TERMINAL VOLTAGE REFERENCEJESD-30 代码：R-PDSO-G5
JESD-609代码：e3长度：2.925 mm
功能数量：1输出次数：1
端子数量：5最高工作温度：70 °C
最低工作温度：最大输出电流：0.01 A
最大输出电压：1.256 V最小输出电压：1.224 V
标称输出电压：1.24 V封装主体材料：PLASTIC/EPOXY
封装代码：LSSOP封装等效代码：TSOP5/6,.11,37
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：NOT SPECIFIED认证状态：Not Qualified
座面最大高度：1.3 mm子类别：Voltage References
表面贴装：YES技术：BIPOLAR
最大电压温度系数：288.018 ppm/ °C温度等级：COMMERCIAL
端子面层：MATTE TIN端子形式：GULL WING
端子节距：0.95 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED微调/可调输出：YES
宽度：1.625 mmBase Number Matches：1

SC431LC5SK25TRT 数据手册

 浏览型号SC431LC5SK25TRT的Datasheet PDF文件第2页浏览型号SC431LC5SK25TRT的Datasheet PDF文件第3页浏览型号SC431LC5SK25TRT的Datasheet PDF文件第4页浏览型号SC431LC5SK25TRT的Datasheet PDF文件第5页浏览型号SC431LC5SK25TRT的Datasheet PDF文件第6页浏览型号SC431LC5SK25TRT的Datasheet PDF文件第7页 
SC431L  
Low Voltage Adjustable  
Shunt Regulator  
POWER MANAGEMENT  
Description  
Features  
The SC431L is a three terminal adjustable shunt  
regulator with thermal stability guaranteed over  
temperature. The output voltage can be adjusted to any  
value from 1.24V (VREF) to 20V with two external  
resistors. The SC431L has a typical dynamic output  
impedance of 0.05Ω. Active output circuitry provides a  
very sharp turn on characteristic, making the SC431L an  
excellent replacement for zener diodes.  
‹ Low voltage operation (down to 1.24V)  
‹ Wide operating current range 100µA to 100mA  
‹ Low dynamic output impedance 0.05 Ω typ.  
‹ Trimmed bandgap design ± 0.25%  
‹ Upgrade for TLV431A  
‹ SOT-23-3 and SOT-23-5 packages. Also available in  
Lead-free package, fully WEEE and RoHS compliant  
Applications  
‹ Linear Regulators  
‹ Adjustable Supplies  
‹ Switching Power Supplies  
‹ Battery Operated Computers  
‹ Instrumentation  
The SC431L shunt regulator is available with four volt-  
age tolerances (0.25%, 0.5%, 1.0% and 2.0%), two  
operating temperature ranges (commercial and indus-  
trial) and two package options (SOT-23-3 and SOT-23-  
5). This allows the designer the opportunity to select the  
optimum combination of cost and performance for their  
application.  
‹ Computer Disk Drives  
Typical Application Circuit(1)(2)  
Notes:  
1) Set VOUT according to the following equation:  
R1  
R2  
VOUT = VREF 1+  
+IREF R1  
2) Choose the value for R as follows:  
• The maximum limit for R should be such that the  
cathode current, IZ, is greater than the minimum  
operating current (100µA) at VIN(MIN)  
.
• The minimum limit for R should be such that IZ does  
not exceed 100mA under all load conditions, and the  
instantaneous turn-on value for IZ does not exceed  
150mA. Both of the following conditions must be met:  
VIN(max)  
150 mA  
R min  
≥
≥
(to limit instantaneous turn-on IZ)  
VIN(max) − VOUT  
IOUT (min) +100 mA  
Rmin  
(to limit IZ under normal  
operating conditions)  
Revision: May 16, 2008  
1
www.semtech.com  
1234567...10

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