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MP5018 - 1A-5A Current Limit Switch

Description

The MP5018 is a protection device designed to protect circuitry on the output from transients on input (VCC).

It also protects VCC from undesired shorts and transients coming from the output.

At startup, inrush current is limited by the slew rate at the output.

Features

  • SAS Disable to support DEVSLP or POWER_DOWN.
  • 4.5V to 5.5V Continued Operating Input Range.
  • 16V Absolute Maximum Input Voltage.
  • 5.8V Fast OVP Response.
  • Reverse Current Blocking.
  • Integrated 45mΩ Power FET.
  • Adjustable Current-Limit or Fixed Current Limit when floating ILIMIT pin.
  • 210μA Typical Low Quiescent Current.
  • Adjustable Soft Start time.
  • Fault Indication.
  • Latch-off Thermal Protection.

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Full PDF Text Transcription

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The Future of Analog IC Technology DESCRIPTION The MP5018 is a protection device designed to protect circuitry on the output from transients on input (VCC). It also protects VCC from undesired shorts and transients coming from the output. At startup, inrush current is limited by the slew rate at the output. The slew rate is controlled by a small capacitor at the SS pin. Floating the SS pin provides 13ms soft-start time. The maximum load at the output is current limited. The magnitude of the current limit is controlled by an external resistor from ILIMIT to GND. Floating ILIMIT pin provides 3A fixed current limit. By controlling the gate voltage of a pair of N-channel MOSFETs, any current flowing from output to input is blocked.
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