General Description
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.
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)
On−the−fly Transients
• 7−bit, Digitally Programmable DAC
• Short−circuit Protection with Programmable Latch−off Delay
• Current Monitor Output Signal
• 32−lead QFN
• This is a Pb−Free Device
APPLICATIONs
• Desktop Power Supplies for Next−generation Intel Chipsets