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TPS27082L

更新时间： 2024-11-19 12:25:11
品牌 Logo 应用领域
德州仪器 - TI 开关
页数 文件大小 规格书
19页 1094K
描述
1.2V - 8V, 3A PFET Load Switch with Adjustable Slew Rate, Fast Transient Isolation and Hysteretic Control

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TPS27082L 数据手册

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TPS27082L  
www.ti.com  
SLVSBR5 –DECEMBER 2012  
1.2V - 8V, 3A PFET Load Switch with Adjustable Slew Rate, Fast Transient Isolation and  
Hysteretic Control  
Check for Samples: TPS27082L  
1
FEATURES  
APPLICATIONS  
•
Low ON Resistance, High Current PFET  
•
•
•
•
•
High Side Load Switch  
Inrush-current Control  
–
–
–
–
–
RDS(ON) = 32mΩ (Typical) at VGS = –4.5V  
RDS(ON) = 44mΩ (Typical) at VGS = –3.0V  
RDS(ON) = 85mΩ (Typical) at VGS = –1.8V  
RDS(ON) = 97mΩ (Typical) at VGS = –1.5V  
RDS(ON) = 155mΩ (Typical) at VGS = –1.2V  
Power Sequencing and Control  
Stand-by Power Isolation  
Portable Power Switch  
DESCRIPTION  
•
Adjustable Turn-ON and Turn-OFF Slew Rate  
The TPS27082L IC is a high side load switch that  
integrates a Power PFET and a control circuit in a  
tiny TSOT-23 package. TPS27082L requires very low  
ON-state quiescent current and offers very low OFF-  
state leakage thus optimizing system power  
efficiency.  
–
10µsec Default Minimum Output Rise Time  
at VIN=5V  
•
•
•
Adjustable Turn-ON and Turn-OFF Slew Rate  
Supports a Wide Range of VIN 1.2V up to 8V  
Excellent OFF Isolation Even Under Fast Input  
Transients  
TPS27082L ON/OFF logic interface features  
hysteresis, thus providing a robust logic interface  
even under very noisy operating conditions.  
TPS27082L ON/OFF interface supports direct  
interfacing to low voltage GPIOs down to 1V. The  
TPS27082L level shifts ON/OFF logic signal to VIN  
levels without requiring an external level shifter.  
•
•
1.0V up to 8V NMOS Control Logic Interface  
With Adjustable Hystersis  
Fully Protected Against ESD (All Pins)  
–
HBM 2kV, CDM 500V  
•
•
•
Very Low ON-state Quiescent Current (Down  
to 1.2µA)  
TPS27082L features a novel OFF isolation circuit that  
prevents PMOS from turning ON in applications that  
may have fast transients, at the VIN pin when the  
load switch is in the OFF-state.  
Very Low OFF-state Leakage Current (Typ  
100nA)  
Available in 2.9mm x 1.6mm x 0.75mm SOT-23  
(DDC) Package  
TPS27082L  
TPS27082LDDC  
(TOP VIEW)  
VIN  
VOUT  
Q1  
(4)  
(2, 3)  
1
2
3
GND  
R1/C1  
ON/OFF  
VIN  
6
5
4
R1  
ESD  
ESD  
VOUT  
VOUT  
C1  
(6)  
(5)  
R1/C1  
2.9mm x 1.6mm x 0.75mm  
TSOT-23(DDC)  
ESD  
TPS27082L Package (DDC)  
Q2  
ON/OFF  
Logic &  
Control  
Component Table (Typical Application)  
ESD  
RS=12.5kΩ  
(1)  
Component  
Description  
Level Shift Pull-up Resistor  
Optional(1)  
R1  
C1  
GND  
Simplified Block & Application Diagram  
(1) Required for load inrush current (slew rate) control.  
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.  
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 © 2012, Texas Instruments Incorporated  
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