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LP38691DT-2.5/NOPB PDF预览

LP38691DT-2.5/NOPB

更新时间: 2024-11-16 11:06:31
品牌 Logo 应用领域
德州仪器 - TI 输出元件电源电路线性稳压器IC调节器
页数 文件大小 规格书
27页 1868K
描述
500mA、10V、低压降稳压器 | NDP | 3 | -40 to 125

LP38691DT-2.5/NOPB 数据手册

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LP38691, LP38693  
www.ti.com  
SNVS321K JANUARY 2005REVISED APRIL 2013  
LP38691  
LP38693 500mA Low Dropout CMOS Linear Regulators  
Stable with Ceramic Output Capacitors  
Check for Samples: LP38691, LP38693  
1
FEATURES  
DESCRIPTION  
The LP38691/3 low dropout CMOS linear regulators  
provide tight output tolerance (2.0% typical),  
extremely low dropout voltage (250 mV @ 500mA  
2
All WSON Options are Available as AEC-Q100  
Grade 1  
2.0% Output Accuracy (25°C)  
load current, VOUT  
=
5V), and excellent AC  
Low Dropout Voltage: 250 mV @ 500mA (typ,  
5V out)  
performance utilizing ultra low ESR ceramic output  
capacitors.  
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 (LP38693)  
Dropout Voltage: 250 mV (typ) @ 500mA (typ. 5V  
out).  
APPLICATIONS  
Hard Disk Drives  
Ground Pin Current: 55 µA (typ) at full load.  
Notebook Computers  
Battery Powered Devices  
Portable Instrumentation  
Precision Output Voltage: 2.0% (25°C) accuracy.  
Typical Application Circuits  
V
IN  
V
OUT  
V
V
IN  
OUT  
LP38691  
**  
SNS  
GND  
1 mF *  
1 mF *  
V
V
OUT  
IN  
V
V
IN  
OUT  
**  
LP38693  
V
EN  
V
EN  
SNS  
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 © 2005–2013, Texas Instruments Incorporated  

LP38691DT-2.5/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LP8345IDTX-2.5/NOPB TI

完全替代

2.5V FIXED POSITIVE LDO REGULATOR, 0.65V DROPOUT, PSSO2, DPAK-3
LP8345CDTX-2.5/NOPB TI

完全替代

2.5V FIXED POSITIVE LDO REGULATOR, 0.65V DROPOUT, PSSO2, DPAK-3

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