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CMPWR280 - Dual Input SmartOR Power Switch

Description

The ON Semiconductor’s SmartORt CMPWR280 is a fully protected Dual Input low dropout CMOS regulator that also provides the necessary control signal for driving an external auxiliary P

channel MOSFET switch.

Features

  • Selects from 3 Input Voltages and Provides 3.3 V Output.
  • Automatic Selection of VCC, VSBY or VAUX.
  • Drive Control Signal for External VAUX Switch.
  • Glitch.
  • Free 3.3 V Output During Supply Transitions.
  • Built.
  • In Hysteresis for Supply Selection.
  • VCC Regulates Up to 1.5 A Output Current.
  • VSBY Regulates Up to 375 mA Output Current.
  • Foldback Current Limiting.
  • Thermal Shutdown with Hysteresis.
  • Standard 5.
  • lead TO.
  • 263 Package.

📥 Download Datasheet

Datasheet Details

Part number CMPWR280
Manufacturer onsemi
File Size 509.15 KB
Description Dual Input SmartOR Power Switch
Datasheet download datasheet CMPWR280 Datasheet

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Full PDF Text Transcription

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CMPWR280 Dual Input SmartORt Power Switch Product Description The ON Semiconductor’s SmartORt CMPWR280 is a fully protected Dual−Input low−dropout CMOS regulator that also provides the necessary control signal for driving an external auxiliary P−channel MOSFET switch. The SmartORt device automatically selects one of three possible inputs on a priority basis: VCC (1.5 A), VSBY (375 mA) or VAUX via the drive signal used to control an external switch. VCC is given first priority. In the event of the VCC supply being powered down, the device will automatically deselect the VCC prior to regulator dropout and immediately select VSBY (second priority) as its power source.
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