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MIC2012 - USB Power Controller

Description

The MIC2012 is a dual channel USB power switch designed to support the power distribution requirements for USB Wakeup from the ACPI S3 state.

The MIC2012 will directly switch its two outputs between a 5V main supply and a 5V auxiliary supply normally provided in ATX style power supplies.

Features

  • Compliant to USB power distribution speciļ¬cations.
  • UL Recognized Component.
  • Two completely independent switches.
  • Integrated switching matrix supports ACPI S0/S3 state transitions without external FET circuits.
  • Make-before-break switching ensures glitch-free transitions.
  • No back-feed of auxiliary supply onto main supply dur- ing standby mode.
  • Bi-level current-limit preserves auxiliary supply voltage regulation in standby mode.

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Datasheet Details

Part number MIC2012
Manufacturer Micrel Semiconductor
File Size 686.55 KB
Description USB Power Controller
Datasheet download datasheet MIC2012 Datasheet

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Full PDF Text Transcription

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MIC2012 MIC2012/MIC2072 USB Power Controller Micrel General Description The MIC2012 is a dual channel USB power switch designed to support the power distribution requirements for USB Wakeup from the ACPI S3 state. The MIC2012 will directly switch its two outputs between a 5V main supply and a 5V auxiliary supply normally provided in ATX style power supplies. The MIC2012 will adjust its current-limit threshold according to the ACPI state it is in. In the normal active S0 state the current-limit is set at 500mA minimum per channel satisfying the USB continuous output current speciļ¬cation.
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