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NCP5386

ON Semiconductor
Part Number NCP5386
Manufacturer ON Semiconductor
Description 1/2 Phase Controller
Published May 14, 2010
Detailed Description NCP5386, NCP5386A, NCP5386B 1/2 Phase Controller for CPU and Chipset Applications The NCP5386 is a one− or two−phase buc...
Datasheet PDF File NCP5386 PDF File

NCP5386
NCP5386

Overview
NCP5386, NCP5386A, NCP5386B 1/2 Phase Controller for CPU and Chipset Applications The NCP5386 is a one− or two−phase buck controller which combines differential voltage and current sensing, and adaptive voltage positioning to power both AMD and Intel processors and chipsets.
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 www.
DataSheet4U.
com 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 http://onsemi.
com MARKING DIAGRAMS 1 1 32 NCP5386x AWLYYWWG QFN32, 5 x 5* MN SUFFIX CASE 485AF *Pin 33 is the thermal pad on the bottom of the device.
NCP5386 = Specific Device Code x = Blank, A or B A = Assembly Location WL = Wafer Lot YY = Year WW = Work Week G = Pb−Free Package • Meets Intel’s VR 10.
0 and 11.
0, and AMD Specifications • No load Intel VR Offset of −19 mV (NCP5386), +20 mV • • • • • • • • • • • • • • • • • (NCP5386A), and 0 mV (NCP5386B) 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 (Patent# 7057381) 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 Threshol...


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