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SIP4280ADT-3-T1-E3 Datasheet(PDF) 1 Page - Vishay Siliconix |
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SIP4280ADT-3-T1-E3 Datasheet(HTML) 1 Page - Vishay Siliconix |
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1 / 9 page  Vishay Siliconix SiP4280A Document Number: 73602 S-61772–Rev. C, 11-Sep-06 www.vishay.com 1 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 APPLICATIONS • Cellular telephones • Digital still cameras • Personal digital assistants (PDA) • Hot swap supplies • Notebook computers • Personal communication devices 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 m Ω 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. 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. TYPICAL APPLICATION CIRCUIT SiP4280A 1 µF 0.1 µF |
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