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NCP5387

Part Number	NCP5387
Manufacturer	ON Semiconductor
Description	2/3/4 Phase Controller
Published	Jan 24, 2015
Detailed Description	NCP5387 2/3/4 Phase Controller for CPU Applications The NCP5387 is a two−, three−, or four−phase buck controller which ...
Datasheet	NCP5387 PDF File

Overview

NCP5387 2/3/4 Phase Controller for CPU Applications The NCP5387 is a two−, three−, or four−phase buck controller which combines differential voltage and current sensing, and adaptive voltage positioning to power both AMD and Intel processors.
Dual−edge pulse−width modulation (PWM) combined with inductor current sensing reduces system cost by providing the fastest initial response to transient load events.
Dual−edge multi−phase modulation reduces total bulk and ceramic output capacitance required to satisfy transient load−line regulation.
A high performance operational error amplifier is provided, which allows easy compensation of the system.
The proprietary method of Dynamic Reference Injection (Patented) makes the error amplifier compensation virtually independent of the system response to VID changes, eliminating tradeoffs between overshoot and dynamic VID performance.
Features • Meets Intel’s VR 10.
0 and 11.
0 and AMD Specifications • Dual−Edge PWM for Fastest Initial Response to Transient Loading • High Performance Operational Error Amplifier • Supports both VR11 and Legacy Soft−Start Modes • Dynamic Reference Injection (Patented) • DAC Range from 0.
5 V to 1.
6 V • "0.
5% System Voltage Accuracy from 1.
0 V to 1.
6 V • True Differential Remote Voltage Sensing Amplifier • Phase−to−Phase Current Balancing • “Lossless” Differential Inductor Current Sensing • Differential Current Sense Amplifiers for each Phase • Adaptive Voltage Positioning (AVP) • Frequency Range: 100 kHz – 1.
0 MHz • OVP with Resettable, 8 Event Delayed Latch • Threshold Sensitive Enable Pin for VTT Sensing • Power Good Output with Internal Delays • Programmable Soft−Start Time • This is a Pb−Free Device* Applications • Desktop Processors http://onsemi.
com MARKING DIAGRAM 1 40 40 PIN QFN, 6x6 MN SUFFIX CASE 488AR 1 NCP5387 AAWLYYWW G NCP5387 = Specific Device Code AA = Assembly Location WL = Wafer Lot YY = Year WW = Work Week G/G = Pb−Free Package *Pin 41 is the thermal pad on the bottom of the d...

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