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LP38843T-1.2/NOPB PDF预览

LP38843T-1.2/NOPB

更新时间： 2024-11-15 01:12:59
品牌 Logo 应用领域
德州仪器 - TI 局域网输出元件调节器
页数 文件大小 规格书
17页 962K
描述
3A Ultra Low Dropout Linear Regulators Stable with Ceramic Output Capacitors

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LP38843T-1.2/NOPB 技术参数

是否无铅：不含铅是否Rohs认证：符合
生命周期：Active零件包装代码：SFM
包装说明：SFM, ZIP5,.15,.17,67TB针数：3
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：1.75Is Samacsys：N
可调性：FIXED最大回动电压 1：0.5 V
标称回动电压 1：0.21 V最大绝对输入电压：6 V
最大输入电压：5.5 V最小输入电压：1.7 V
JESD-30 代码：R-PSFM-T5JESD-609代码：e3
长度：10.16 mm最大负载调整率：0.0216%
湿度敏感等级：1功能数量：1
输出次数：1端子数量：5
工作温度TJ-Max：150 °C工作温度TJ-Min：-40 °C
最高工作温度：125 °C最低工作温度：-40 °C
最大输出电流 1：3 A最大输出电压 1：1.236 V
最小输出电压 1：1.164 V标称输出电压 1：1.2 V
封装主体材料：PLASTIC/EPOXY封装代码：SFM
封装等效代码：ZIP5,.15,.17,67TB封装形状：RECTANGULAR
封装形式：FLANGE MOUNT包装方法：TUBE
峰值回流温度（摄氏度）：NOT APPLICABLE认证状态：Not Qualified
调节器类型：FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR座面最大高度：4.7 mm
子类别：Other Regulators表面贴装：NO
技术：CMOS端子面层：Matte Tin (Sn)
端子形式：THROUGH-HOLE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：NOT SPECIFIED
最大电压容差：3%宽度：8.51 mm
Base Number Matches：1

LP38843T-1.2/NOPB 数据手册

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LP38843  
www.ti.com  
SNVS290C –DECEMBER 2004–REVISED APRIL 2013  
LP38843 3A Ultra Low Dropout Linear Regulators  
Stable with Ceramic Output Capacitors  
Check for Samples: LP38843  
1
FEATURES  
DESCRIPTION  
The LP38843 is  
a
high-current, fast-response  
2
•
•
Ideal for Conversion From 1.8V or 1.5V Inputs  
regulator which can maintain output voltage  
regulation with minimum input to output voltage drop.  
Fabricated on a CMOS process, the device operates  
from two input voltages: Vbias provides voltage to  
drive the gate of the N-MOS power transistor, while  
Vin is the input voltage which supplies power to the  
load. The use of an external bias rail allows the part  
to operate from ultra low Vin voltages. Unlike bipolar  
regulators, the CMOS architecture consumes  
extremely low quiescent current at any output load  
current. The use of an N-MOS power transistor  
results in wide bandwidth, yet minimum external  
capacitance is required to maintain loop stability.  
Designed for use with low ESR Ceramic  
Capacitors  
•
0.8V, 1.2V and 1.5V Standard Voltages  
Available  
•
•
•
•
•
•
•
Ultra Low Dropout Voltage (210mV at 3A typ)  
1.5% Initial Output Accuracy  
Load Regulation of 0.1%/A (Typical)  
30nA Quiescent Current in Shutdown (Typical)  
Low Ground Pin Current at all Loads  
Over Temperature/Over Current Protection  
Available in 5 Lead TO-220 and DDPAK/TO-263  
Packages  
The fast transient response of these devices makes  
them suitable for use in powering DSP,  
Microcontroller Core voltages and Switch Mode  
Power Supply post regulators. The parts are available  
in TO-220 and DDPAK/TO-263 packages.  
•
−40°C to +125°C Junction Temperature Range  
APPLICATIONS  
Dropout Voltage: 210 mV (typ) at 3A load current.  
Quiescent Current: 30 mA (typ) at full load.  
•
ASIC Power Supplies In:  
–
Desktops, Notebooks, and Graphics Cards,  
Servers  
Shutdown Current: 30 nA (typ) when S/D pin is low.  
–
Gaming Set Top Boxes, Printers and  
Copiers  
Precision Output Voltage: 1.5% room temperature  
accuracy.  
•
•
•
Server Core and I/O Supplies  
DSP and FPGA Power Supplies  
SMPS Post-Regulator  
TYPICAL APPLICATION CIRCUIT  
LP38843  
IN  
OUT  
S/D  
IN  
OUT  
10 mF  
Ceramic  
4.7 mF*  
BIAS  
5V ± 10%  
BIAS  
S/D  
GND  
0.1 mF  
GND  
GND  
* Minimum value required if Tantalum capacitor is used (see Application Hints).  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
All trademarks are the property of their respective owners.  
2
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2004–2013, Texas Instruments Incorporated  
1234567...17

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LP38843T-1.2/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LP38856T-1.2/NOPB TI

类似代替

 3A Fast-Response High-Accuracy LDO Linear Regulator With Enable
LP38843T-1.2 TI

类似代替

 1.2V FIXED POSITIVE LDO REGULATOR, 0.5V DROPOUT, SFM5, TO-220, 5 PIN

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