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NCP5314ONN/a848avaiTwo/Three/Four-Phase Buck CPU Controller
NCP5314FTR2ONN/a1872avaiTwo/Three/Four-Phase Buck CPU Controller


NCP5314FTR2 ,Two/Three/Four-Phase Buck CPU ControllerELECTRICAL CHARACTERISTICS (0°C < T < 70°C; V = 12 V; C = 100 pF, C = 0.01 μF,A CC GATEx COMPC = ..
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NCP5314-NCP5314FTR2
Two/Three/Four-Phase Buck CPU Controller
NCP5314
Two/Three/Four-Phase
Buck CPU Controller
The NCP5314 provides full−featured and flexible control for the
latest high−performance CPUs. The IC can be programmed as a two−,
three− or four−phase buck controller, and the per−phase switching
frequency can be as high as 1.2 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 the industry’s fastest 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 2/3/4 Phase Operation Lossless Current Sensing Enhanced V2 Control Method Provides Fast Transient Response Programmable Up to 1.2 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 Latching Overcurrent Protection Undervoltage Lockout External Enable Control Three−State MOSFET Driver Control through Driver−On Signal System Power Management 6−Bit DAC with 0.5% Tolerance Compatible with VR(M)10.x
Specification Programmable Lower Power Good Threshold Power Good Output
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