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April 2008 Rev L
  SP619 High Current Power Switch ?2008 EXAR Corporation
DESCRIPTION
FEATURES
APPLICATIONS
SP619
High Current Power Switch
" Max RDS(ON) .377 Ohms
" Overcurrent deactivation 800mA
" Max leakage current less than 2礎
  while deactivated
" Small 6 pin SOT-23 package
" Built-in Over-temperature Protection
" 4.5V to 5.5V input voltage range
" Ultra low cost handsets
" PDA, DSC, MP3 players
" Cell phones
" Power Distribution Switch
" Battery-Charger Circuit
The SP619 is a low RDS(ON) high current switch designed with precision current lim-
iting to protect connected devices from damage due to a short circuit condition or
against current surges that may cause the supply voltages to fall out of regula-
tion. This switch is functional over an input voltage range of 2.5V to 7V, but is targeted
at 5V applications. The SP619 is also protected from thermal overload which
limits power dissipation. In shutdown mode, the supply current drops to 2?/SPAN>A.
6
5
4
1
2
3
SP619
SOT23-6
TYPICAL APPLICATION CIRCUIT
Vin
Vin
Cin .1礔
EN
80K
ON/OFF
GND
SP619
Vout
100K
Cout
.1礔
LOAD
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