LM34904 Datasheet, PDF (1/9 Pages) Texas Instruments – 500mA Current Limited Power Switch

LM34904
500mA Current Limited Power Switch
General Description
The LM34904 is a 0.5A PFET switch used to control the input
voltage of electronic devices. It is easily integrated into system
designs that have a 2.8V to 5.3V voltage rail. Besides the
0.4Ω PFET switch, the LM34904 can be enabled or disabled
by a logic signal. The IC monitors the presence of a down-
stream electronic device via a dedicated pin to decide whether
to turn on the PFET switch. A power good signal generated
by the IC can be used by system control to determine the sta-
tus of the switch. The LM34904 also provides over-current
and over-temperature protection. The IC comes in a tiny 6-
bump thin micro SMD package.
Typical Application Circuit
Features
● ^{Input voltage of 2.8V to 5.3V}
● ^{0.5A maximum switch current}
● 0.4Ω typical total on-resistance
● ^{Load detection}
● ^{Enable/disable}
● ^{Switch on indicator}
● ^{Peak current limit}
● ^{Thermal shutdown}
● ^{6-bump thin micro SMD package}
Applications
● ^{Handsets, tablets, notebooks}
● ^{Portable devices}
30194201
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.
301942 SNVS803D
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