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LP3893ESX-1.8/NOPB PDF预览

LP3893ESX-1.8/NOPB

更新时间： 2024-11-14 19:51:39
品牌 Logo 应用领域
德州仪器 - TI 输出元件调节器
页数 文件大小 规格书
16页 1060K
描述
1.8V FIXED POSITIVE LDO REGULATOR, 1V DROPOUT, PSSO5, MOLDED, TO-263, 5 PIN

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LP3893ESX-1.8/NOPB 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：D2PAK
包装说明：TO-263,针数：4
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.17
最大回动电压 1：1 V最大输入电压：5.5 V
最小输入电压：2.8 VJESD-30 代码：R-PSSO-G5
JESD-609代码：e3长度：10.16 mm
湿度敏感等级：3功能数量：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 1：3 A
最大输出电压 1：1.854 V最小输出电压 1：1.746 V
标称输出电压 1：1.8 V封装主体材料：PLASTIC/EPOXY
封装代码：TO-263封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：245
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表面贴装：YES
技术：CMOS端子面层：TIN
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
宽度：8.64 mmBase Number Matches：1

LP3893ESX-1.8/NOPB 数据手册

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LP3893  
www.ti.com  
SNVS237B –SEPTEMBER 2003–REVISED APRIL 2013  
LP3893 3A Fast-Response Ultra Low Dropout Linear Regulators  
Check for Samples: LP3893  
1
FEATURES  
DESCRIPTION  
The LP3893 is a high-current, fast-response 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.  
2
•
•
•
•
•
•
•
•
Ultra Low Dropout Voltage (270 mV at 3A typ)  
Low Ground Pin Current  
Load Regulation of 0.04%/A  
60 nA Typical Quiescent Current in Shutdown  
1.5% Output Accuracy (25°C)  
TO-220, DDPAK/TO-263 Packages  
Over Temperature/Over Current Protection  
−40°C to +125°C Junction Temperature Range  
APPLICATIONS  
•
•
•
•
•
•
•
DSP Power Supplies  
Server Core and I/O Supplies  
Linear Power Supplies for PC Add-in-Cards  
Set-Top Box Power Supplies  
Microprocessor Power Supplies  
High Efficiency Linear Power Supplies  
SMPS Post-Regulators  
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.  
Dropout Voltage: 270 mV (typ) at 3A load current.  
Ground Pin Current: 3 mA (typ) at full load.  
Shutdown Current: 60 nA (typ) when S/D pin is low.  
Precision Output Voltage: 1.5% room temperature  
accuracy.  
TYPICAL APPLICATION CIRCUIT  
At least 10 µF of input and output capacitance is required for stability.  
*Tantalum capacitors are recommended. Aluminum electrolytic capacitors may be used for restricted temperature  
range. See application hints.  
CONNECTION DIAGRAM  
Figure 1. TO-220, Top View  
Figure 2. DDPAK/TO-263, Top View  
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 © 2003–2013, Texas Instruments Incorporated  
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