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NCP5380

Part Number	NCP5380
Manufacturer	ON Semiconductor
Description	Synchronous Buck Switching Regulator Controller
Published	May 14, 2010
Detailed Description	NCP5380 7-Bit, Programmable, Single-Phase, Synchronous Buck Switching Regulator Controller General Description http://on...
Datasheet	NCP5380 PDF File

Overview

NCP5380 7-Bit, Programmable, Single-Phase, Synchronous Buck Switching Regulator Controller General Description http://onsemi.
com MARKING DIAGRAM 1 The NCP5380 is a highly efficient, single−phase, synchronous buck switching regulator controller.
With its integrated drivers, the NCP5380 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.
www.
DataSheet4U.
com The NCP5380 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 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 also provides accurate and reliable current overload protection and a delayed power−good output.
The IC supports on−the−fly output voltage changes requested by the chipset.
The NCP5380 is specified over the extended commercial temperature range of 0°C to 85°C and is available in a 32−lead QFN.
Features 1 32 QFN32, 5x5 CASE 488AM MN SUFFIX NCP5380 AWLYYWWG G NCP5380 = Specific Device Code A = Assembly Location WL = Wafer Lot YY = Year WW = Work Week G = Pb Free Package (Note: Microdot may be in either location) PIN CONFIGURATION EN VID1 VID2 VID3 VID4 VID5 VID6 VID7 PWRGD IMON N/C FBRTN FB COMP GND ILIM 1 NCP5380 (Top View) VCC BST DRVH SW PVCC DRVL PGND GND • 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 ...

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