SIP4280A Datasheet, PDF (1/9 Pages) Vishay Siliconix – Slew Rate Controlled Load Switch

Slew Rate Controlled Load Switch
SiP4280A
Vishay Siliconix
FEATURES
• 1.5 V to 5.5 V Input Voltage range
• Very Low R_DS(ON), typically 80 mΩ (5 V)
• Slew rate limited turn-on time options
- SiP4280A-1: 1 ms
- SiP4280A-3: 100 µs
• Fast shutdown load discharge option
• Low quiescent current
< 25 nA (typ)
• 4 kV ESD Rating
• 6 pin SOT23 package
DESCRIPTION
The SiP4280A is a P-Channel MOSFET power switch
designed for high-side load switching applications. The
output pass transistor is a P-Channel MOSFET tran-
sistor with typically 80 mΩ R_DS(ON). The SiP4280A is
available in two different versions of turn-on times. The
SiP4280A-1 version has a slew rate limited turn-on
time typically of 1 ms. The SiP4280A-3 version has a
slew rate limited turn-on time typically of 100 µs and
additionally offers a shutdown load discharge circuit to
rapidly turn off a load circuit when the switch is dis-
abled.
TYPICAL APPLICATION CIRCUIT
APPLICATIONS
• Cellular telephones
• Digital still cameras
• Personal digital assistants (PDA)
• Hot swap supplies
• Notebook computers
• Personal communication devices
Both SiP4280A load switch versions operate with an
input voltage ranging from 1.5 V to 5.5 V, making them
ideal for both 3 V and 5 V applications. The SiP4280A
also features an under-voltage lock out which turns the
switch off when an input undervoltage condition exists.
Input logic levels are TTL and 2.5 V to 5.0 V CMOS
compatible. The quiescent supply current is very low,
typically 25 nA. In shutdown mode, the supply current
decreases to less than 1.0 µA.
The SiP4280A is available in a 6 pin SOT23 package
and is specified over - 40 °C to 85 °C temperature
range.
SiP4280A
1 µF
0.1 µF
Document Number: 73602
S-61772–Rev. C, 11-Sep-06
www.vishay.com
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