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Description

FULL DATA SHEET (PDF, 744kB) Download   E-Mail The MAX890L smart, low-voltage, P-channel, MOSFET power switch is intended for high-side load-switching applications. This switch operates with inputs from +2.7V to +5.5V, making it ideal for both +3V and +5V systems. Internal current-limiting circuitry protects the input supply against overload. Thermal-overload protection limits power dissipation and junction temperatures. The MAX890L's maximum current limit is 1.2A. The current limit through the switch is programmed with a resistor from SET to ground. The quiescent supply current is a low 10µA. When the switch is off, the supply current decreases to 0.1µA. The MAX890L is available in an 8-pin SO package.

Key Features		Applications/Uses
+2.7V to +5.5V Input Range Programmable Current Limit Low Quiescent Current 10µA (typ) at VIN = 3.3V 0.1µA (typ) with Switch Off Thermal Shutdown Active-Low FAULT Indicator Output 0.09Ω (typ) On-Resistance		Access Bus Slots PCMCIA Slots Portable Equipment

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