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TPS22908

更新时间： 2024-09-28 11:58:27
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 693K
描述
Ultra Small, Low-Input Voltage, Low RON Load Switch

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TPS22908 数据手册

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TPS22908  
www.ti.com  
SLVSBI7A –JULY 2012–REVISED AUGUST 2012  
Ultra Small, Low-Input Voltage, Low R Load Switch  
ON  
Check for Samples: TPS22908  
1
FEATURES  
APPLICATIONS  
•
•
Low Input Voltage: 1.0 V to 3.6 V  
•
•
•
•
•
•
•
•
•
Battery Powered Equipment  
Portable Industrial Equipment  
Portable Medical Equipment  
Portable Media Players  
Point of Sales Terminal  
GPS Devices  
Ultra-Low ON-State Resistance (RON  
)
–
–
–
–
RON = 28 mΩ at VIN = 3.6 V  
RON = 33 mΩ at VIN = 2.5 V  
RON = 42 mΩ at VIN = 1.8 V  
RON = 70 mΩ at VIN = 1.2 V  
•
•
•
•
1-A Maximum Continuous Switch Current  
Quiescent Current <1 µA  
Digital Cameras  
Portable Instrumentation  
Smartphones / Tablets  
Shutdown Current <1 µA  
Low Control Input Thresholds Enable Use of  
Low-Voltage Logic  
VIN  
VOUT  
Power  
Supply  
ON  
•
•
Controlled Slew Rate to Avoid Inrush Currents  
CIN  
ON  
CL  
RL  
OFF  
Ultra Small CSP-4 Package 0.9 mm × 0.9 mm,  
0.5-mm Pitch, 0.5-mm Height  
GND  
TPS22908  
GND  
•
Quick Output Discharge (QOD)  
Figure 1. Typical Application  
DESCRIPTION  
The TPS22908 is an ultra small, low RON load switch with controlled turn on. The device contains a P-channel  
MOSFET that operates over an input voltage range of 1.0 V to 3.6 V. The switch is controlled by an on/off input  
(ON), which is capable of interfacing directly with low-voltage control signals.  
The TPS22908 is available in a space-saving 4-terminal WCSP with 0.5-mm pitch (YZT). The device is  
characterized for operation over the free-air temperature range of –40°C to 85°C.  
FEATURE LIST  
RON (typical)  
AT 3.6 V  
RISE TIME (typical)  
AT 3.6 V  
QUICK OUTPUT  
DISCHARGE(1)  
MAXIMUM  
CURRENT  
DEVICE  
ENABLE  
TPS22908  
28 mΩ  
105 µs  
Yes  
1000 mA  
Active high  
(1) This feature discharges the output of the switch to ground through an 80-Ω resistor, preventing the output from floating.  
ORDERING INFORMATION  
TA  
PACKAGE  
Reel of 250  
Tape of 3000  
ORDERABLE PART NUMBER  
TOP MARKING  
AT  
TPS22908YZTT  
–40°C to 85°C  
4-YZT  
TPS22908YZTR  
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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TPS22908 替代型号

型号 品牌 替代类型 描述 数据表
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