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NCP5382

ON Semiconductor
Part Number NCP5382
Manufacturer ON Semiconductor
Description 2/3/4/5/6 Phase Buck Controller
Published Jun 29, 2007
Detailed Description NCP5382 2/3/4/5/6 Phase Buck Controller for VR10 and VR11 Pentium IV Processor Applications The NCP5382 is a two−, three...
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NCP5382
NCP5382

Overview
NCP5382 2/3/4/5/6 Phase Buck Controller for VR10 and VR11 Pentium IV Processor Applications The NCP5382 is a two−, three−, four−, five−, or six−phase buck controller which combines differential voltage and current sensing, and adaptive voltage positioning to power Intel’s most demanding Pentium ® IV Processors and low voltage, high current power supplies.
Dual−edge pulse−width modulation (PWM) combined with inductor current sensing reduces system cost by providing the fastest initial response to transient loads thereby requiring less bulk and ceramic output capacitors to satisfy transient load−line requirements.
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 the need for tradeoffs between load transients and Dynamic VID performance.
Features http://onsemi.
com MARKING DIAGRAM 1 1 48 48 PIN QFN, 7x7 MN SUFFIX CASE 485K A WL YY WW G NCP5382 AWLYYWWG www.
DataSheet4U.
com • • • • • • • • • • • • • • • • • • • • • • • • • • Meets Intel’s VR 10.
0, 10.
1, 10.
2, and 11.
0 Specifications Dual−Edge PWM for Fastest Initial Response to Transient Loading High Performance Operational Error Amplifier Supports both VR11 and Legacy VR10 Soft−Start Modes Dynamic Reference Injection (Patent# 7057381) 8−Bit DAC per Intel’s VR11 Specifications DAC Range from 0.
5 V to 1.
6 V "0.
5% System Voltage Accuracy Remote Temperature Sensing per VR11 2, 3, 4, 5 or 6−Phase Operation 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) Fixed No−Load Voltage Positioning at –19 mV Frequency Range: 100 kHz–1.
0 MHz Threshold Sensitive Enable Pin for VTT Sensing Power Good Output with Internal Delays Programmab...


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