Semiconductor Components Industries, LLC, 2010
November, 2010 -- Rev . 1
1 Publication Order Number:
NCP5392Q/D
NCP5392Q
2/3/4--Phase Controller for
CPU Applications
The NCP5392Q provides up to a four--phase buck solution which
combines differential voltage sensing, differential phase current sensing,
and adaptive voltage pos ition ing to provid e accurately regulated pow er
for Intel processors. Dual--edge pulse--width modulation (P WM)
combined with inductor current sensing reduces system cost by
providing the fastest initial respons e to dynamic load events. Dual--edge
multiphase modulation reduces the total bulk and ceramic output
capacitance required to meet trans ien t regulation specif ication s .
A high performance operational error amplifier is provided to
simplify compe nsation of the system. Dynamic Reference Injection
further simplifies loop compensation by eliminating the need to
compromise between closed--loop t r ansient response and Dynamic
VID performance.
In addition, NCP5392Q provides an automatic power saving
feature (Auto--PSI). When Auto--PSI function is enable d, NCP5392Q
will automatically detect the VID transitions and direct the Vcore
regulator in or out of low power states. As a result, the best efficiency
scheme is al wa ys chose n.
Features
Meets Intel’s VR11.1 Specifications
Dual--edge PWM for Fastest Initial Response to Transient Loading
High Performance Operational Error Amplifier
Internal Soft Start
Dynamic Reference Injecti on
DAC Range from 0.375 V to 1.6 V
DAC Feed Forward Function
0.5% DAC 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)
Oscillator Frequency Range of 100 kHz – 1 MHz
Latched Over Voltage Protection (OVP)
Guaranteed Startup into Pre--Charged Loads
Threshold Sensitive Enable Pin for VTT Sensing
Power Good Output with Internal Delays
Thermally Compensated Current Monitoring
Automatic Power Saving (AUTO PSI Mode)
Compatible to PSI Power Saving Requirements
This is a Pb--Free Device
Applications
Desktop Processors
40 PIN QFN, 6x6
MN SUFFIX
CASE 488AR
Device Package Shipping
†
ORDERING INFORMATION
NCP5392QMNR2G* QFN--40
(Pb--Free)
2500/Tape & Reel
MARKING
DIAGRAM
NCP5392Q = Specific Device Code
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
G = Pb--Free Package
NCP5392Q
AWLYYWWG
1
http://onsemi.com
†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.
*Pin 41 is the thermal pad on the bottom of the device.
*Temperature Range: 0Cto85C
401
