SIP4280 Datasheet, PDF (1/9 Pages) Vishay Siliconix – Slew Rate Controlled Load Switch

SiP4280
Vishay Siliconix
Slew Rate Controlled Load Switch
FEATURES
D 1.8 V to 5.5 V Input Voltage range
D Very Low R_DS(ON), typically 80 m (5 V)
D Slew rate limited turn–on time options
D SiP4280–1: 1 ms
D SiP4280–3: 100 ms
D Fast shutdown load discharge option
D Low quiescent current
D 4 kV ESD Rating
D 8 pin SC70JW package
DESCRIPTION
The SiP4280 is a P–channel MOSFET power switch designed
for high–side load switching applications. The output pass
transistor is a P–channel MOSFET transistor with typically 80
mΩ R_DS(ON). The SiP4280 is available in two different versions
of turn–on times. The SiP4280–1 version has a slew rate
limited turn–on time typically of 1 ms. The SiP4280–3 version
has a slew rate limited turn–on time typically of 100 ms and
additionally offers a shutdown load discharge circuit to rapidly
turn off a load circuit when the switch is disabled.
Both SiP4280 load switch versions operate with an input
voltage ranging from 1.8 V to 5.5 V, making them ideal for both
3 V and 5 V applications. The SiP4280 also features an
under–voltage lock out which turns the switch off when an
TYPICAL APPLICATION CIRCUIT
APPLICATIONS
D Cellular telephones
D Digital still cameras
D Personal digital assistants (PDA)
D Hot swap supplies
D Notebook computers
D Personal communication devices
input undervoltage condition exists. Input logic levels are TTL
and 2.5 volt to 5.0 volt CMOS compatible. The quiescent
supply current is very low, typically 2.5 mA. In shutdown mode,
the supply current decreases to less than 1.0 mA.
The SiP4280 is available in a 8 pin SC70JW package and is
specified over –40 _C to 85 _C temperature range.
Document Number: 73476
S–52468—Rev. B, 28-Nov-05
www.vishay.com
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