1. Products
  2. Power Monitor, Control, and Protection
  3. USB Power Switches
  4. MAX893L


Features and Benefits

  • +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

Product Details

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.


  • Access Bus Slots
  • PCMCIA Slots
  • Portable Equipment
  • USB Hubs
  • USB Ports

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Product Recommendations

MAX893L Companion Parts

Recommended Related Parts

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
MAX893LESA+ Material Declaration Reliability Data Small-Outline IC, Narrow (0.15in)
MAX893LESA+T Material Declaration Reliability Data Small-Outline IC, Narrow (0.15in)
Wafer Fabrication Data MAX893L Reliability Data

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Sample & Buy

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Buy Now Pricing

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List Pricing

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Lead Times

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