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CMPWR025 Datasheet(PDF) 1 Page - ON Semiconductor |
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CMPWR025 Datasheet(HTML) 1 Page - ON Semiconductor |
1 / 8 page Semiconductor Components Industries, LLC, 2011 April, 2011 − Rev. 4 1 Publication Order Number: CMPWR025/D CMPWR025 Dual Input SmartORt Power Switch Product Description The SmartOR t CMPWR025 is a dual input power switch that selects between two different power inputs and delivers it to one output. The device integrates two very low impedance power switches and automatically implements an OR function that selects the higher of the two inputs. Hysteresis is built in (and is user selectable) to prevent switch chatter. The CMPWR025 is a much−improved solution over simply ORing two diodes, due to the greatly reduced losses of the CMPWR025 when compared to low forward drop Schottky diodes. The CMPWR025 is designed to operate above the 1 W (375 mA at 3.3 V) sleep mode rating stated in the PCI Rev 2.2 spec. In fact the CMPWR025 current rating is dependent upon the power dissipation resulting from the voltage drop across the internal switch elements. See the Typical DC Characteristics section in this data sheet for details. For IAPC (Instantly Available Personal Computer) applications see ON Semiconductor Application Note “Instantly Available PCI Card Power Management”. The CMPWR025 is housed in a 8−lead MSOP package and is available with RoHS compliant lead−free finishing. Features Implements Logical “Input VCC1 OR Input VCC2” Integrated Low Impedance Switches (0.2 W TYP) Operating Supply Range from 2.8 V to 5.5 V Provides Up to 600 mA Output Current Glitch−Free Output During Supply Switching Transitions Low Operating Supply Current of 20 mA (TYP) User−Selectable Hysteresis for Supply Selection 8−Pin MSOP Package These Devices are Pb−Free and are RoHS Compliant Applications PCI Cards for Wake−On−LAN/Wake−On−Ring Dual Power Systems Systems with Standby Capabilities Battery Backup Systems See also Application Note AP−211 USB Enabled Mobile Electronics such as MP3 Players, PDAs, Digital Cameras and Wireless Handsets MARKING DIAGRAM Device Package Shipping† ORDERING INFORMATION http://onsemi.com CMPWR025R MSOP 8 (Pb−Free) 4000/Tape & Reel †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD8011/D. R025 = CMPWR025R R025 MSOP 8 R SUFFIX CASE 846AD |
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