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LP38690SD-1.8/NOPB PDF预览

LP38690SD-1.8/NOPB

更新时间： 2024-11-15 12:09:55
品牌 Logo 应用领域
德州仪器 - TI 稳压器电容器
页数 文件大小 规格书
28页 1951K
描述
1A Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors

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LP38690SD-1.8/NOPB 数据手册

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LP38690, LP38692  
www.ti.com  
SNVS322J –DECEMBER 2004–REVISED APRIL 2013  
LP38690  
LP38692 1A Low Dropout CMOS Linear Regulators  
Stable with Ceramic Output Capacitors  
Check for Samples: LP38690, LP38692  
1
FEATURES  
DESCRIPTION  
The LP38690/2 low dropout CMOS linear regulators  
2
•
•
2.5% Output Accuracy (25°C)  
provide tight output tolerance (2.5% typical),  
extremely low dropout voltage (450mV @ 1A load  
current, VOUT = 5V), and excellent AC performance  
utilizing ultra low ESR ceramic output capacitors.  
Low Dropout Voltage: 450mV @ 1A (typ, 5V  
out)  
•
•
•
•
•
•
•
•
Wide Input Voltage Range (2.7V to 10V)  
Precision (Trimmed) Bandgap Reference  
Ensured Specs for -40°C to +125°C  
1µA Off-State Quiescent Current  
Thermal Overload Protection  
The low thermal resistance of the WSON, SOT-223  
and PFM packages allow the full operating current to  
be used even in high ambient temperature  
environments.  
The use of a PMOS power transistor means that no  
DC base drive current is required to bias it allowing  
ground pin current to remain below 100 µA  
regardless of load current, input voltage, or operating  
temperature.  
Foldback Current Limiting  
PFM, SOT-223 and 6-Lead WSON Packages  
Enable Pin (LP38692)  
APPLICATIONS  
Dropout Voltage: 450 mV (typ) @ 1A (typ. 5V out).  
Ground Pin Current: 55 µA (typ) at full load.  
Precision Output Voltage: 2.5% (25°C) accuracy.  
•
•
•
•
Hard Disk Drives  
Notebook Computers  
Battery Powered Devices  
Portable Instrumentation  
Typical Application Circuits  
V
IN  
V
OUT  
V
V
IN  
OUT  
LP38690  
SNS**  
GND  
1 mF *  
1 mF *  
V
V
OUT  
IN  
V
V
IN  
OUT  
LP38692  
V
EN  
SNS**  
V
EN  
GND  
1 mF *  
1 mF *  
* Minimum value required for stability.  
**WSON package devices only.  
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  
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LP38690SD-1.8/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LP38690SD-1.8 TI

完全替代

 1A Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors
LP38690SDX-1.8/NOPB TI

类似代替

 1A Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors
LP38690SDX-1.8 TI

类似代替

 1A Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors

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