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TPS2148IDGNRG4 PDF预览

TPS2148IDGNRG4

更新时间： 2024-09-21 21:10:19
品牌 Logo 应用领域
德州仪器 - TI 开关光电二极管
页数 文件大小 规格书
18页 251K
描述
IC,POWER SUPPLY SWITCHING CIRCUIT,TSSOP,8PIN,PLASTIC

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TPS2148IDGNRG4 技术参数

是否Rohs认证： 符合生命周期：Obsolete
包装说明：TSSOP, TSSOP8,.19Reach Compliance Code：unknown
风险等级：5.84JESD-30 代码：R-PDSO-G8
端子数量：8最高工作温度：85 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：TSSOP封装等效代码：TSSOP8,.19
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
电源：3/5 V认证状态：Not Qualified
子类别：Power Management Circuits表面贴装：YES
温度等级：INDUSTRIAL端子形式：GULL WING
端子节距：0.635 mm端子位置：DUAL
Base Number Matches：1

TPS2148IDGNRG4 数据手册

 浏览型号TPS2148IDGNRG4的Datasheet PDF文件第2页浏览型号TPS2148IDGNRG4的Datasheet PDF文件第3页浏览型号TPS2148IDGNRG4的Datasheet PDF文件第4页浏览型号TPS2148IDGNRG4的Datasheet PDF文件第5页浏览型号TPS2148IDGNRG4的Datasheet PDF文件第6页浏览型号TPS2148IDGNRG4的Datasheet PDF文件第7页 
TPS2148  
TPS2158  
SLVS373 – AUGUST 2001  
3.3-V LDO AND DUAL SWITCH  
FOR USB PERIPHERAL POWER MANAGEMENT  
FEATURES  
DESCRIPTION  
Complete Power Management Solution for  
USB Bus-Powered Peripherals  
The TPS2148 incorporates two power distribution  
switches and an LDO in one small package, providing  
a USB peripheral power management solution that  
saves up to 60% in board space over typical  
implementations.  
3.3-V 200 mA Low-Dropout Voltage Regulator  
With Enable  
3.3-V 340-mΩ (Typ) High-Side MOSFET  
5-V 340-mΩ (Typ) High-Side MOSFET  
The TPS2148 meets USB 2.0 bus-powered peripheral  
requirements. An integrated LDO regulates the 5-V bus  
power down to 3.3 V for the USB controller, and a  
MOSFET switch that is internally connected to the  
output of the LDO simplifies meeting the suspend and  
enumeration current requirements imposed by the USB  
specification.  
Independent Thermal- and Short-Circuit  
Protection for LDO and Each Switch  
2.9-V to 5.5-V Operating Range  
CMOS- and TTL-Compatible Enable Inputs  
75-µA (Typ) Supply Current  
Available in 8-Pin MSOP (PowerPAD )  
–40°C to 85°C Ambient Temperature Range  
A second switch is available to support a downstream  
port, stage power to a second voltage regulator, or  
disable power to selected circuitry in power-save  
modes.  
APPLICATIONS  
Each power-distribution switch is capable of supplying  
200 mA of continuous current, and the independent  
logic enables are compatible with 5-V logic and 3-V  
logic. The switches and the LDO are designed with  
controlled rise times and fall times to minimize current  
surges.  
USB Peripherals  
– Digital Cameras  
– Zip Drives  
– Speakers and Headsets  
The TPS2148 has active-low enables while the  
TPS2158 has active-high enables.  
LDO and dual switch family selection guide and schematics  
TPS2149/59  
MSOP–8  
TPS2148/58  
MSOP–8  
TPS2145/55  
TSSOP–14  
TPS2147/57  
MSOP–10  
LDO_OUT  
LDO_ADJ  
VIN/SW1  
VIN  
LDO  
LDO_OUT  
VIN/SW1  
LDO_EN  
VIN/SW1  
LDO_OUT  
LDO_OUT  
LDO  
LDO  
LDO  
LDO_EN  
EN2  
OC1  
OC1  
OUT2  
OUT1  
OC  
OUT1  
OUT1  
EN1  
EN1  
EN1  
OUT1  
OUT2  
OUT2  
OC2  
OUT2  
OC2  
SW2  
SW2  
EN1  
GND  
EN2  
GND  
EN2  
EN2  
GND  
GND  
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.  
PowerPAD is a trademark of Texas Instruments.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
Copyright 2001, Texas Instruments Incorporated  
1
www.ti.com  
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