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NCP5380AMNR2G Datasheet(PDF) 1 Page - ON Semiconductor |
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NCP5380AMNR2G Datasheet(HTML) 1 Page - ON Semiconductor |
1 / 28 page © Semiconductor Components Industries, LLC, 2011 April, 2011 − Rev. 3 1 Publication Order Number: NCP5380/D NCP5380, NCP5380A 7-Bit, Programmable, Single-Phase, Synchronous Buck Switching Regulator Controller General Description The NCP5380/A is a highly efficient, single−phase, synchronous buck switching regulator controller. With its integrated drivers, the NCP5380/A is optimized for converting the silver box voltage to the supply voltage required by high performance Intel chipsets. An internal 7−bit DAC is used to read a VID code directly from the chipset. The NCP5380/A uses a multimode architecture. It provides programmable switching frequency that can be optimized for efficiency depending on the output current requirement. In addition, the NCP5380/A includes a programmable load line slope function to adjust the output voltage as a function of the load current so that the core voltage is always optimally positioned for a load transient. The NCP5380/A also provides accurate and reliable current overload protection and a delayed power−good output. The IC supports On−The−Fly(OTF) output voltage changes requested by the chipset. The NCP5380 is specified over the temperature range of 0 °C to 85 °C, while the NCP5380A extends the temperature range to −40°C to 100 °C. The NCP5380/A is available in a 32−lead QFN. Features • Single−chip Solution • Fully Compatible with the Intel VR11 CPU Chipset Voltage Regulator Specifications • Integrated MOSFET Drivers • ±8 mV Worst−case Differentially Sensed Core Voltage Error over Temperature • Automatic Power−saving Modes Maximize Efficiency During Light Load Operation • Soft Transient Control Reduces Inrush Current and Audio Noise • Independent Current Limit and Load Line Setting Inputs for Additional Design Flexibility • Built−in Power−good Masking Supports Voltage Identification (VID) OTF Transients • 7−bit, Digitally Programmable DAC • Short−circuit Protection with Programmable Latchoff Delay • Current Monitor Output Signal • 32−lead QFN • This is a Pb−Free Device Applications • Desktop Power Supplies for Next−generation Intel Chipsets http://onsemi.com MARKING DIAGRAM Device Package Shipping† ORDERING INFORMATION †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. QFN32, 5x5 CASE 488AM MN SUFFIX NCP5380MNR2G QFN−32 (Pb−Free) 5000 / Tape & Reel 32 1 NCP5380 AWLYYWWG G 1 NCP5380 = Specific Device Code A = Assembly Location WL = Wafer Lot YY = Year WW = Work Week G = Pb Free Package VCC BST DRVH SW PVCC DRVL PGND GND PWRGD IMON N/C FBRTN FB COMP GND ILIM NCP5380 (Top View) PIN CONFIGURATION 1 (Note: Microdot may be in either location) NCP5380AMNR2G QFN−32 (Pb−Free) 5000 / Tape & Reel |
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