|
NCP5387 Datasheet, PDF (1/37 Pages) ON Semiconductor – 2/3/4 Phase Controller for CPU Applications | |||
|
NCP5387
2/3/4 Phase Controller for
CPU Applications
The NCP5387 is a twoâ, threeâ, or fourâphase buck controller
which combines differential voltage and current sensing, and
adaptive voltage positioning to power both AMD and Intel
processors. Dualâedge pulseâwidth modulation (PWM) combined
with inductor current sensing reduces system cost by providing the
fastest initial response to transient load events. Dualâedge
multiâphase modulation reduces total bulk and ceramic output
capacitance required to satisfy transient loadâline 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 Intelâs VR 10.0 and 11.0 and AMD Specifications
⢠DualâEdge PWM for Fastest Initial Response to Transient Loading
⢠High Performance Operational Error Amplifier
⢠Supports both VR11 and Legacy SoftâStart 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
⢠PhaseâtoâPhase Current Balancing
⢠âLosslessâ Differential Inductor Current Sensing
⢠Differential Current Sense Amplifiers for each Phase
⢠Adaptive Voltage Positioning (AVP)
⢠Frequency Range: 100 kHz â 1.0 MHz
⢠OVP with Resettable, 8 Event Delayed Latch
⢠Threshold Sensitive Enable Pin for VTT Sensing
⢠Power Good Output with Internal Delays
⢠Programmable SoftâStart Time
⢠This is a PbâFree 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
= PbâFree Package
*Pin 41 is the thermal pad on the bottom of the device.
ORDERING INFORMATION
Device
Package
Shippingâ
NCP5387MNR2G* QFNâ40 2500 / Tape & Reel
(PbâFree)
*Temperature Range: 0°C to 85°C
â 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 PbâFree strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques Reference
Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2007
1
April, 2007 â Rev. 3
Publication Order Number:
NCP5387/D
|
▷ |