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MAX893L - 1.2A / Current-Limited / High-Side P-Channel Switch

General Description

The MAX893L 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.

Key Features

  • o +2.7V to +5.5V Input Range o Programmable Current Limit 0.2A to 1.2A Range ±20% Accuracy o 1.2A Continuous Load Current o 1.8A Short-Circuit Current o Low Quiescent Current 13µA at VIN = 3.3V 0.1µA with Switch Off o Thermal Shutdown o FAULT Indicator Output o 0.07Ω On-Resistance MAX893L ________________________.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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19-1450; Rev 0; 7/99 1.2A, Current-Limited, High-Side P-Channel Switch with Thermal Shutdown General Description The MAX893L 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 temperature. The MAX893L’s maximum programmed current limit is 1.2A. The typical short-circuit current is 1.5 times the programmed current; therefore, a 1.2A programmed limit will result in a 1.8A short-circuit current limit. The current limit through the switch is programmed with a resistor from SET to ground.