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LP3961ESX-3.3 PDF预览

LP3961ESX-3.3

更新时间： 2024-11-26 00:01:07
品牌 Logo 应用领域
美国国家半导体 - NSC 稳压器
页数 文件大小 规格书
21页 365K
描述
800mA Fast Ultra Low Dropout Linear Regulators

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LP3961ESX-3.3 技术参数

是否Rohs认证： 不符合生命周期：Transferred
包装说明：TO-263, 5 PINReach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.11可调性：FIXED
最大回动电压 1：0.35 V标称回动电压 1：0.24 V
最大绝对输入电压：7.5 V最大输入电压：7 V
最小输入电压：3.65 VJESD-30 代码：R-PSSO-G5
JESD-609代码：e0长度：10.16 mm
湿度敏感等级：3功能数量：1
输出次数：1端子数量：5
工作温度TJ-Max：125 °C工作温度TJ-Min：-40 °C
最大输出电流 1：0.8 A最大输出电压 1：3.399 V
最小输出电压 1：3.201 V标称输出电压 1：3.3 V
封装主体材料：PLASTIC/EPOXY封装代码：TO-263
封装等效代码：SMSIP5H,.6,67TB封装形状：RECTANGULAR
封装形式：SMALL OUTLINE包装方法：TAPE AND REEL
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：4.8 mm
子类别：Other Regulators表面贴装：YES
技术：CMOS端子面层：Tin/Lead (Sn/Pb)
端子形式：GULL WING端子节距：1.7 mm
端子位置：SINGLE处于峰值回流温度下的最长时间：30
最大电压容差：3%宽度：8.64 mm
Base Number Matches：1

LP3961ESX-3.3 数据手册

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May 2000  
LP3961/LP3964  
800mA Fast Ultra Low Dropout Linear Regulators  
General Description  
Features  
n Ultra low dropout voltage  
n Low ground pin current  
The LP3961/LP3964 series of fast ultra low-dropout linear  
regulators operate from a +2.5V to +7.0V input supply. Wide  
range of preset output voltage options are available. These  
ultra low dropout linear regulators respond very fast to step  
changes in load which makes them suitable for low voltage  
microprocessor applications. The LP3961/LP3964 are de-  
veloped on a CMOS process which allows low quiescent  
current operation independent of output load current. This  
CMOS process also allows the LP3961/LP3964 to operate  
under extremely low dropout conditions.  
n Load regulation of 0.02%  
n 15µA quiescent current in shutdown mode  
n Guaranteed output current of 0.8A DC  
n Available in SOT-223,TO-263 and TO-220 packages  
n Output voltage accuracy 1.5%  
n Error flag indicates output status (LP3961)  
n Sense option improves better load regulation (LP3964)  
n Extremely low output capacitor requirements  
n Overtemperature/overcurrent protection  
±
Dropout Voltage: Ultra low dropout voltage; typically 24mV  
at 80mA load current and 240mV at 800mA load current.  
n −40˚C to +125˚C junction temperature range  
Ground Pin Current: Typically 4mA at 800mA load current.  
Shutdown Mode: Typically 15µA quiescent current when  
the shutdown pin is pulled low.  
Applications  
n Microprocessor power supplies  
n GTL, GTL+, BTL, and SSTL bus terminators  
n Power supplies for DSPs  
n SCSI terminator  
Error Flag: Error flag goes low when the output voltage  
drops 10% below nominal value (for LP3961).  
SENSE: Sense pin improves regulation at remote loads.  
(For LP3964)  
n Post regulators  
Precision Output Voltage: Multiple output voltage options  
n High efficiency linear regulators  
n Battery chargers  
are available ranging from 1.2V to 5.0V and adjustable, with  
±
a guaranteed accuracy of 1.5% at room temperature, and  
±
3.0% over all conditions ( varying line, load, and tempera-  
n Other battery powered applications  
ture).  
Typical Application Circuits  
DS101129-1  
# Minimum output capacitance is 10 µF to ensure stability over full load current range. More capacitance provides superior dynamic performance and additional  
stability margin.  
*SD and ERROR pins must be pulled high through a 10kΩ pull-up resistor. Connect the ERROR pin to ground if this function is not used. See applications sec-  
tion for more information.  
© 2000 National Semiconductor Corporation  
DS101129  
www.national.com  
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