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LP3853ES-3.3/NOPB PDF预览

LP3853ES-3.3/NOPB

更新时间： 2024-11-10 11:12:51
品牌 Logo 应用领域
德州仪器 - TI 输出元件稳压器调节器
页数 文件大小 规格书
26页 1796K
描述
具有电源正常指示和使能功能的 3A、7V、超低压降稳压器 | KTT | 5 | -40 to 125

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LP3853ES-3.3/NOPB 数据手册

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LP3853, LP3856  
www.ti.com  
SNVS173G –FEBRUARY 2003–REVISED APRIL 2013  
LP3853/LP3856 3A Fast Response Ultra Low Dropout Linear Regulators  
Check for Samples: LP3853, LP3856  
1
FEATURES  
DESCRIPTION  
The LP3853/LP3856 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 quickly to step changes in  
load, which makes them suitable for low voltage  
microprocessor applications. The LP3853/LP3856 are  
developed on a CMOS process which allows low  
quiescent current operation independent of output  
load current. This CMOS process also allows the  
LP3853/LP3856 to operate under extremely low  
dropout conditions.  
2
•
•
•
•
•
•
•
•
•
•
•
•
Ultra Low Dropout Voltage  
Stable with Selected Ceramic Capacitors  
Low Ground Pin Current  
Load Regulation of 0.08%  
10nA Quiescent Current in Shutdown Mode  
Ensured Output Current of 3A DC  
Available in TO-263 and TO-220 Packages  
Output Voltage Accuracy ± 1.5%  
Error Flag Indicates Output Status  
Sense Option Improves Load Regulation  
Overtemperature/overcurrent Protection  
−40°C to +125°C Junction Temperature Range  
Dropout Voltage: Ultra low dropout voltage; typically  
39mV at 300mA load current and 390mV at 3A load  
current.  
Ground Pin Current: Typically 4mA at 3A load  
current.  
APPLICATIONS  
•
•
•
•
•
•
•
•
•
Microprocessor Power Supplies  
Stable with Ceramic Output Capacitors  
GTL, GTL+, BTL, and SSTL Bus Terminators  
Power Supplies for DSPs  
Shutdown Mode: Typically 10nA quiescent current  
when the shutdown pin is pulled low.  
Error Flag:Error flag goes low when the output  
voltage drops 10% below nominal value.  
SCSI Terminator  
SENSE: Sense pin improves regulation at remote  
loads.  
Post Regulators  
High Efficiency Linear Regulators  
Battery Chargers  
Precision Output Voltage: Multiple output voltage  
options are available ranging from 1.8V to 5.0V with a  
ensured accuracy of ±1.5% at room temperature, and  
±3.0% over all conditions (varying line, load, and  
temperature).  
Other Battery Powered Applications  
Typical Application Circuits  
V
INPUT  
3.3V ± 10%  
OUT  
V
V
OUT  
IN  
1.8V, 3.0A  
C
*
C *  
OUT  
10 mF  
IN  
10 mF  
LP3853-1.8  
SD  
ERROR  
GND  
ERROR**  
SD**  
* TANTALUM OR  
CERAMIC  
**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 Application Hints for more information.  
V
INPUT  
3.3V ± 10%  
OUT  
1.8V, 3.0A  
V
V
OUT  
IN  
C
*
C *  
OUT  
10 mF  
IN  
10 mF  
LP3856-1.8  
SD  
SENSE  
GND  
SD**  
* TANTALUM OR  
CERAMIC  
**SD pin must be pulled high through a 10kΩ pull-up resistor. See Application Hints for more information.  
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  
1234567...26

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LP3853ES-3.3/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LP3853ESX-3.3/NOPB TI

类似代替

 具有电源正常指示和使能功能的 3A、7V、超低压降稳压器 | KTT | 5 | -40
LP3853ES-3.3 TI

类似代替

 具有电源正常指示和使能功能的 3A、7V、超低压降稳压器 | KTT | 5 | -40

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 		具有电源正常指示和使能功能的 3A、7V、超低压降稳压器 | KTT | 5 | -40

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