MAX893L

PRODUCTION

1.2A, Current-Limited, High-Side P-Channel Switch with Thermal Shutdown

1.2A Current-Limited, High-Side P-Channel Switch with Thermal Shutdown

Data Sheet (Rev. 0) Product Selection Table
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Overview

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

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. The quiescent supply current is a low 13µA. When the switch is off, the supply current decreases to 0.1µA.

The MAX893L is available in an 8-pin SO package.

Applications

  • Access Bus Slots
  • PCMCIA Slots
  • Portable Equipment
  • USB Hubs
  • USB Ports
MAX893L
1.2A, Current-Limited, High-Side P-Channel Switch with Thermal Shutdown
MAX893L: Typical Operating Circuit
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Documentation

Data Sheet 1

Reliability Data 1

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
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