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LT1121ACS8-3.3#TR PDF预览

LT1121ACS8-3.3#TR

更新时间： 2024-11-22 19:30:35
品牌 Logo 应用领域
凌特 - Linear 光电二极管输出元件调节器
页数 文件大小 规格书
16页 158K
描述
LT1121 - Micropower Low Dropout Regulators with Shutdown; Package: SO; Pins: 8; Temperature Range: 0°C to 70°C

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LT1121ACS8-3.3#TR 技术参数

是否Rohs认证： 不符合生命周期：Transferred
零件包装代码：SOIC包装说明：SOP, SOP8,.25
针数：8Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.13可调性：FIXED
最大回动电压 1：0.7 V标称回动电压 1：0.42 V
最大绝对输入电压：30 V最大输入电压：20 V
最小输入电压：4.3 VJESD-30 代码：R-PDSO-G8
JESD-609代码：e0长度：4.93 mm
最大电网调整率：0.01%最大负载调整率：0.04%
湿度敏感等级：1功能数量：1
输出次数：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 1：0.15 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：SOP8,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE包装方法：TR
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：1.75 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：1.27 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：3.9 mm
Base Number Matches：1

LT1121ACS8-3.3#TR 数据手册

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LT1121/LT1121-3.3/LT1121-5  
Micropower Low Dropout  
Regulators with Shutdown  
FEATURES  
DESCRIPTION  
The LT®1121/LT1121-3.3/LT1121-5 are micropower low  
dropout regulators with shutdown. These devices are ca-  
pableofsupplying150mAofoutputcurrentwithadropout  
voltage of 0.4V. Designed for use in battery-powered sys-  
tems, thelowquiescentcurrent, 30μAoperatingand16μA  
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.  
n
0.4V Dropout Voltage  
n
150mA Output Current  
n
30μA Quiescent Current  
No Protection Diodes Needed  
n
n
Adjustable Output from 3.75V to 30V  
n
3.3V and 5V Fixed Output Voltages  
n
Controlled Quiescent Current in Dropout  
n
Shutdown  
n
16μA Quiescent Current in Shutdown  
OtherfeaturesoftheLT1121/LT1121-3.3/LT1121-5include  
theabilitytooperatewithverysmalloutputcapacitors.They  
are stable with only 0.33μF on the output while most older  
devices require between 1μF and 100μF for stability. Small  
ceramic capacitors can be used, enhancing manufactur-  
ability. Also the input may be connected to ground or a  
reverse voltage without reverse current flow from output  
to input. This makes the LT1121 series ideal for backup  
power situations where the output is held high and the  
inputisatgroundorreversed.Undertheseconditionsonly  
16μA will flow from the output pin to ground.  
n
Stable with 0.33μF Output Capacitor  
n
Reverse Battery Protection  
n
No Reverse Current with Input Low  
n
Thermal Limiting  
n
Available in the 8-Lead SO, 8-Lead PDIP, 3-Lead  
SOT-23 and 3-Lead TO-92 Packages  
APPLICATIONS  
n
Low Current Regulator  
n
Regulator for Battery-Powered Systems  
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
n
Post Regulator for Switching Supplies  
TYPICAL APPLICATION  
5V Battery-Powered Supply with Shutdown  
Dropout Voltage  
0.5  
8
1
3.3V  
OUT  
IN  
OUT  
LT1121-3.3  
150mA  
0.4  
0.3  
0.2  
0.1  
0
+
1μF  
5V  
SOLID TANTALUM  
5
SHDN  
GND  
3
V
(PIN 5) OUTPUT  
SHDN  
<0.25  
>2.8  
NC  
OFF  
ON  
ON  
LT1121 • TA01  
80  
OUTPUT CURRENT (mA)  
0
20 40 60  
100 120 140 160  
LT1121 • TA02  
1121ff  
1
1234567...16

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