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MIC2039 - Adjustable Current Limit Power Switch

General Description

The MIC2039 is a high-side MOSFET power distribution switch providing increased system reliability by using 5% current-limit accuracy.

The MIC2039 has an operating input voltage range from 2.5V to 5.5V, is internally current limited, and has thermal shutdown to protect the device and system.

Key Features

  • ±5% current limit accuracy.
  • Input supply range from 2.5V to 5.5V.
  • Low quiescent current: 100µA typical (switch ON).
  • 75mΩ typical RDS(ON) at 5.0V.
  • 0.2A to 2.5A adjustable output current.
  • Kickstart.
  • momentary secondary current-limit threshold (120ms period).
  • Soft-start functionality.
  • Undervoltage lockout (UVLO).
  • Fast 10µs short-circuit response time (non-Kickstart options).
  • Fault status output flag.

📥 Download Datasheet

Datasheet Details

Part number MIC2039
Manufacturer Micrel Semiconductor
File Size 1.20 MB
Description Adjustable Current Limit Power Switch
Datasheet download datasheet MIC2039 Datasheet

Full PDF Text Transcription for MIC2039 (Reference)

Note: Below is a high-fidelity text extraction (approx. 800 characters) for MIC2039. For precise diagrams, and layout, please refer to the original PDF.

MIC2039 High-Accuracy, High-Side, Adjustable Current Limit Power Switch General Description The MIC2039 is a high-side MOSFET power distribution switch providing increase...

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039 is a high-side MOSFET power distribution switch providing increased system reliability by using 5% current-limit accuracy. The MIC2039 has an operating input voltage range from 2.5V to 5.5V, is internally current limited, and has thermal shutdown to protect the device and system. The MIC2039 is offered with either active-high or active-low logic level enable input controls. It has an open drain fault status output flag with a built-in 32ms delay that asserts low during overcurrent or thermal-shutdown conditions. The MIC2039 switches feature an adjustable output current limit that is resistor programmable from 0.2A to 2