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NCP5388ONN/a5145avai2/3/4 Phase Buck Controller


NCP5388 ,2/3/4 Phase Buck ControllerFeaturesWL = Wafer Lot€ Meets Intel’s VR 10.0, 10.1, 10.2, and 11.0 SpecificationsYY = Year€ Dualï ..
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NCP5392P ,2/3/4 Phase Controller for CPU ApplicationsFeaturesx MeetsIntel’sVR11.1Specifications *Pin41isthethermalpadonthebottomofthedevice.x MeetsAMD6B ..
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NCP5388
2/3/4 Phase Buck Controller
NCP5388
2/3/4 Phase Buck Controller
for VR10 and VR11 Pentium
IV Processor Applications
The NCP5388 is a twoï, threeï, or fourïphase 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. Dualïedge pulseïwidth 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 loadïline requirements.
A high performance operational error amplifier is provided, which
allows for easy compensation of the system. The proprietary method
of Dynamic Reference Injection 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 Meets Intel’s VR 10.0, 10.1, 10.2, and 11.0 Specifications DualïEdge PWM for Fastest Initial Response to Transient Loading High Performance Operational Error Amplifier Supports both VR11 and Legacy VR10 SoftïStart Modes Dynamic Reference Injection 8ïBit DAC per Intel’s VR11 Specifications DAC Range from 0.5 V to 1.6 V 0.75% System Voltage Accuracy Remote Temperature Sensing per VR11 2, 3, or 4ïPhase Operation True Differential Remote Voltage Sensing Amplifier PhaseïtoïPhase Current Balancing “Lossless” Differential Inductor Current Sensing Differential Current Sense Amplifiers for each Phase Adaptive Voltage Positioning (A VP) Fixed NoïLoad V oltage Positioning at –19 mV Frequency Range: 100 kHz–1.0 MHz Latched Overvoltage Protection (OVP) Threshold Sensitive Enable Pin for VTT Sensing Power Good Output with Internal Delays Programmable SoftïStart Time Operates from 12 V This is a PbïFree Device*
Applications Pentium IV Processors VRM Modules Graphics Cards Low Voltage, High Current Power Supplies
40 PIN QFN, 7x7
MN SUFFIX
CASE 488AG
Device Package Shipping†
ORDERING INFORMATION
NCP5388MNR2G QFNï40
(PbïFree)
2500 / Tape & Reel
MARKING
DIAGRAM1
http://
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
*For additional information on our PbïFree strategy
and soldering details, please download the
ON Semiconductor Soldering and Mounting
Techniques Reference Manual, SOLDERRM/D.
*Pin 41 is the thermal pad on the bottom of the device.
NCP5388 = Specific Device Code = Assembly Location = Wafer Lot = Year = Work Week
/G = PbïFree Package
NCP5388
AAWLYYWWG
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