NCP5392P Datasheet, PDF (1/32 Pages) ON Semiconductor – 2/3/4-Phase Controller for CPU Applications

NCP5392P
2/3/4-Phase Controller for
CPU Applications
The NCP5392P provides up to a four-phase buck solution which
combines differential voltage sensing, differential phase current
sensing, and adaptive voltage positioning to provide accurately
regulated power for both Intel and AMD processors. Dual-edge
pulse-width modulation (PWM) combined with inductor current
sensing reduces system cost by providing the fastest initial response
to dynamic load events. Dual-edge multiphase modulation reduces
the total bulk and ceramic output capacitance required to meet
transient regulation specifications.
A high performance operational error amplifier is provided to
simplify compensation of the system. Dynamic Reference Injection
further simplifies loop compensation by eliminating the need to
compromise between closed-loop transient response and Dynamic
VID performance.
In addition, NCP5392P provides an automatic power saving
feature (Auto-PSI). When Auto-PSI function is enabled, NCP5392P
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 always chosen.
Features
•ăMeets Intel's VR11.1 Specifications
•ăMeets AMD 6 Bit Code Specifications
•ăDual-edge PWM for Fastest Initial Response to Transient Loading
•ăHigh Performance Operational Error Amplifier
•ăInternal Soft Start
•ăDynamic Reference Injection (Patent #US07057381)
•ăDAC Range from 0.375 V to 1.6 V
•ăDAC Feed Forward Function (Patent Pending)
•ă±0.5% DAC Voltage Accuracy from 1.0 V to 1.6 V
•ăTrue Differential Remote Voltage Sensing Amplifier
•ăPhase-to-Phase Current Balancing
•ă“Lossless” Differential Inductor Current Sensing
•ăDifferential Current Sense Amplifiers for each Phase
•ăAdaptive Voltage Positioning (AVP)
•ăOscillator Frequency Range of 100 kHz – 1 MHz
•ăLatched Over Voltage Protection (OVP)
•ăGuaranteed Startup into Pre-Charged Loads
•ăThreshold Sensitive Enable Pin for VTT Sensing
•ăPower Good Output with Internal Delays
•ăThermally Compensated Current Monitoring
•ăAutomatic Power Saving (AUTO PSI Mode)
•ăCompatible to PSI Power Saving Requirements
•ăThis is a Pb-Free Device
Applications
•ăDesktop Processors
http://onsemi.com
MARKING
DIAGRAM
1 40
40 PIN QFN, 6x6
MN SUFFIX
CASE 488AR
1
NCP5392P
AWLYYWWG
NCP5392P = Specific Device
Code
A
= Assembly Location
WL
= Wafer Lot
YY
= Year
WW
= Work Week
G
= Pb-Free Package
*Pin 41 is the thermal pad on the bottom of the device.
ORDERING INFORMATION
Device
Package
Shipping^†
NCP5392PMNR2G* QFN-40 2500/Tape & Reel
(Pb-Free)
*Temperature Range: 0°C to 85°C
†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.
©Ă Semiconductor Components Industries, LLC, 2008
1
April, 2008 - Rev. 0
Publication Order Number:
NCP5392P/D