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ST890 Fiches technique(PDF) 1 Page - STMicroelectronics

No de pièce ST890
Description  1.2 A current limited high side power switch with thermal shutdown
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST890 Fiches technique(HTML) 1 Page - STMicroelectronics

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March 2009
Rev 8
1/20
20
ST890
1.2 A current limited high side power switch
with thermal shutdown
Features
2.7 V to 5.5 V input range
Programmable current limit up to 1.2 A
Low quiescent current
Thermal shutdown
Active low FAULT indicator output
90 m
Ω (typ.) ON resistance
SO-8 and DFN8L (3 x 3 mm) packages
Applications
PCMCIA slots
Access bus slots
Portable equipment
Description
The ST890 is a low voltage, P-channel MOSFET
power switch intended for high side load switching
applications.
The switch operates with inputs from 2.7 V to
5.5 V, making it ideal for both 3 V and 5 V
systems.
The internal current limiting circuitry protects the
input supply against overload. The thermal
overload protection limits power dissipation and
junction temperatures.
The maximum current limit is 1.2 A. The current
limit through the switch is programmed with a
resistor from SET to ground. The devices are
available in SO-8 and DFN8L (3 x 3 mm)
packages.
DFN8L
(3x3mm)
SO-8
Table 1.
Device summary
Order code
Package
Packaging
ST890BDR
SO-8
2500 parts per reel
ST890CDR
SO-8
2500 parts per reel
ST890DTR
DFN8L (3 x 3 mm)
3000 parts per reel
www.st.com


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