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NCP5316FTR2ONN/a50avaiFour/Five/Six-Phase Buck CPU Controller


NCP5316FTR2 ,Four/Five/Six-Phase Buck CPU ControllerFeatures♦ Programmable Pulse−by−Pulse Current Limit for Each PhaseORDERING INFORMATION♦ “111110” an ..
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NCP5316FTR2
Four/Five/Six-Phase Buck CPU Controller
NCP5316
Four/Five/Six-Phase
Buck CPU Controller
The NCP5316 provides full−featured and flexible control for the
latest high−performance CPUs. The IC can be programmed as a four−,
five− or six−phase buck controller, and the per−phase switching
frequency can be as high as 1.0 MHz. Combined with external gate
drivers and power components, the controller implements a compact,
highly integrated multi−phase buck converter.
Enhanced V2  control inherently compensates for variations in
both line and load, and achieves current sharing between phases. This
control scheme provides fast transient response, reducing the need for
large banks of output capacitors and higher switching frequency.
The controller meets VR(M)10.x specifications with all the required
functions and protection features.
Features
Switching Regulator Controller Programmable 4/5/6 Phase Operation Lossless Current Sensing Programmable Up to 1.0 MHz Switching Frequency Per Phase 0 to 100% Adjustment of Duty Cycle Programmable Adaptive Voltage Positioning Reduces Output
Capacitor Requirements Programmable Soft Start Current Sharing Differential Current Sense Pins for Each Phase Current Sharing Within 10% Between Phases Protection Features Programmable Pulse−by−Pulse Current Limit for Each Phase “111110” and “111111” DAC Code Fault Latching Off Overvoltage Protection Programmable Latch Overcurrent Protection Undervoltage Lockout Reference Undervoltage Lockout MOSFET Driver Control through Driver−On Signal System Power Management 6−Bit DAC with 0.5% Tolerance Programmable Lower Power Good Threshold Power Good Output External Enable Control 3.3 V Reference Voltage Output
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