SP2026
DESCRIPTION
The SP2026 is a dual +2.7V to +5.5V supervisory power control switch that is current limited to 1.25A and has thermal shutdown to protect itself and the load. A device is disabled in thermal shutdown until the excessive current load is removed, the appropriate enable pins are toggled, or the die temperature cools to 120°C. The undervoltage lockout feature disables the output switches until a valid input voltage, VIN = 2.4V, is present. Once a valid input voltage is present and the SP2026 is enabled, a 1ms soft start prevents momentary voltage drops caused by charging a capacitive load. The SP2026 has a low on resistance, 100mΩ, and supplies a 500m A minimum output current per switch. In overcurrent and thermal shutdown, error flags may be asserted for overtemperature.
ENA FLGA FLGB ENB
1 2 3 4
®
8 7
OUTA IN GND OUTB
6 5
Rev. 1/23/02
SP2026 +2.7V to +5.5V USB Power Control Switch
© Copyright 2002 Sipex Corporation
ABSOLUTE MAXIMUM RATINGS
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