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SiP4280A
Vishay Siliconix
Slew Rate Controlled Load Switch
FEATURES • 1.5 V to 5.5 V Input Voltage...
www.DataSheet4U.com
SiP4280A
Vishay Siliconix
Slew Rate Controlled Load Switch
FEATURES 1.5 V to 5.5 V Input Voltage range Very Low RDS(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
transistor with typically 80 mΩ RDS(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 disabled. 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,...