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LT1521CST-3.3 PDF预览

LT1521CST-3.3

更新时间： 2024-11-21 22:55:51
品牌 Logo 应用领域
凌特 - Linear 线性稳压器IC调节器电源电路光电二极管输出元件
页数 文件大小 规格书
16页 298K
描述
300mA Low Dropout Regulators with Micropower Quiescent Current and Shutdown

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LT1521CST-3.3 技术参数

是否Rohs认证：不符合生命周期：Transferred
零件包装代码：SOT包装说明：PLASTIC, SOT-223, 4 PIN
针数：3Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.06Is Samacsys：N
可调性：FIXED最大回动电压 1：0.75 V
标称回动电压 1：0.5 V最大绝对输入电压：20 V
最大输入电压：20 V最小输入电压：4.3 V
JESD-30 代码：R-PDSO-G4JESD-609代码：e0
长度：6.505 mm最大电网调整率：0.02%
最大负载调整率：0.055%湿度敏感等级：1
功能数量：1输出次数：1
端子数量：4工作温度TJ-Max：125 °C
工作温度TJ-Min：最大输出电流 1：0.3 A
最大输出电压 1：3.4 V最小输出电压 1：3.2 V
标称输出电压 1：3.3 V封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装等效代码：SOT-223
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：235认证状态：Not Qualified
调节器类型：FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR座面最大高度：1.8 mm
子类别：Other Regulators表面贴装：YES
技术：BIPOLAR端子面层：Tin/Lead (Sn/Pb)
端子形式：GULL WING端子节距：2.3 mm
端子位置：DUAL处于峰值回流温度下的最长时间：20
最大电压容差：3%宽度：3.505 mm
Base Number Matches：1

LT1521CST-3.3 数据手册

 浏览型号LT1521CST-3.3的Datasheet PDF文件第2页浏览型号LT1521CST-3.3的Datasheet PDF文件第3页浏览型号LT1521CST-3.3的Datasheet PDF文件第4页浏览型号LT1521CST-3.3的Datasheet PDF文件第5页浏览型号LT1521CST-3.3的Datasheet PDF文件第6页浏览型号LT1521CST-3.3的Datasheet PDF文件第7页 
LT1521/LT1521-3  
LT1521-3.3/LT1521-5  
300mA Low Dropout  
Regulators with Micropower  
Quiescent Current and Shutdown  
U
FEATURES  
DESCRIPTION  
The LT®1521/LT1521-3/LT1521-3.3/LT1521-5 are low  
dropout regulators with micropower quiescent current  
and shutdown. These devices are capable of supplying  
300mA of output current with a dropout voltage of 0.5V.  
Designed for use in battery-powered systems, the low  
quiescent current, 12µA operating and 6µA in  
shutdown, makes them an ideal choice. The quiescent  
current is well controlled; it does not rise in dropout as it  
does with many other low dropout PNP regulators.  
■
Dropout Voltage: 0.5V  
Output Current: 300mA  
Quiescent Current: 12µA  
■
■
■
■
■
■
■
■
■
■
No Protection Diodes Needed  
Adjustable Output from 3.8V to 20V  
Fixed Output Voltages: 3V, 3.3V, 5V  
Controlled Quiescent Current in Dropout  
Shutdown IQ = 6µA  
Reverse Battery Protection  
No Reverse Current  
Other features of the LT1521/LT1521-3/LT1521-3.3/  
LT1521-5 include the ability to operate with very small  
output capacitors. They are stable with only 1.5µF on the  
outputwhilemostolderdevicesrequirebetween10µFand  
100µF for stability. Small ceramic capacitors can be used,  
enhancing manufacturability. Also, the input may be con-  
nectedtovoltageslowerthantheoutputvoltage,including  
negative voltages, without reverse current flow from out-  
puttoinput.ThismakestheLT1521seriesidealforbackup  
power situations where the output is held high and the  
input is low or reversed. Under these conditions only 5µA  
will flow from the output pin to ground.  
Thermal Limiting  
U
APPLICATIONS  
■
Low Current Regulator  
■
Regulator for Battery-Powered Systems  
■
Post Regulator for Switching Supplies  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
U
TYPICAL APPLICATION  
Dropout Voltage  
5V Battery-Powered Supply with Shutdown  
0.6  
5V  
300mA  
8
1
IN  
OUT  
0.5  
+
6V  
1µF  
1.5µF  
LT1521-5  
0.4  
5
2
SHDN  
SENSE  
GND  
3
0.3  
0.2  
0.1  
V
(PIN 5) OUTPUT  
SHDN  
<0.25  
>2.80  
NC  
OFF  
ON  
ON  
LT1521 • TA01  
0
0
100  
150  
200  
250  
300  
50  
OUTPUT CURRENT (mA)  
LT1521 • TA02  
1
1234567...16

中文翻译

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LT1521CST-3.3 替代型号

型号 品牌 替代类型 描述 数据表
LT1521IST-3.3 Linear

完全替代

 300mA Low Dropout Regulators with Micropower Quiescent Current and Shutdown
LT1121IST-3.3 Linear

完全替代

 Micropower Low Dropout Regulators with Shutdown

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