NCP5393
2/3/4-Phase Controller for
CPU Applications
The NCP5393 controls up to four V
phases and one V
DDNB
DD
phase to provide a buck regulator solution for current and
next-generation AMD processors. The NCP5393 incorporates
differential voltage sensing, differential phase current sensing,
http://onsemi.com
optional load-line voltage positioning, and programmable V and
V
DD
offsets to provide accurately regulated power parallel- and
DDNB
MARKING
DIAGRAM
serial-VID AMD processors. Dual-edge multiphase modulation
provides the fastest initial response to dynamic load events. This
reduces system cost by requiring less bulk and ceramic output
capacitance to meet transient regulation specifications.
1
High performance operational error amplifiers are provided to
regulators. Dynamic
NCP5393
AWLYYWWG
simplify compensation of the V and V
DD
DDNB
1
48
Reference Injection further simplifies loop compensation by
eliminating the need to compromise between response to load
transients and response to VID code changes.
QFN48, 7x7
CASE 485AJ
A
= Assembly Location
= Wafer Lot
= Year
Features
WL
YY
WW
G
•ꢀMeets AMD's Parallel, Serial (SVI) and Hybrid VR Specifications
= Work Week
= Pb-Free Package
•ꢀUp to Four V Phases
DD
•ꢀSingle-Phase V
Controller
DDNB
•ꢀDual-Edge PWM for Fastest Initial Response to Transient Loading
•ꢀHigh Performance Operational Error Amplifiers
•ꢀInternal Soft Start and Slew Rate Limiting
ORDERING INFORMATION
†
Device
NCP5393MNR2G
Package
Shipping
•ꢀDynamic Reference Injection (Patent #US07057381)
•ꢀDAC Range from 12.5 mV to 1.55 V
QFN48
(Pb-Free)
2500 / Tape & Reel
•ꢀ$0.5% DAC Accuracy fro 0.8 V to 1.55 V
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
•ꢀV and V Offset Ranges 0 mV - 800 mV
DD
DD
•ꢀTrue Differential Remote Voltage Sense Amplifiers
•ꢀPhase-to-Phase I Current Balancing
DD
•ꢀDifferential Current Sense Amplifiers for Each Phase of Each Output
•ꢀ“Lossless” Inductor Current Sensing for V and V
Outputs
DD
DDNB
•ꢀSupports Load Lines (Droop) for V and V
Outputs
DD
DDNB
•ꢀOscillator Range of 100 kHz - 1 MHz
•ꢀTracking Over Voltage Protection
•ꢀOutput Inductor DCR-Based Over Current Protection for V and
DD
V
DDNB
Outputs
•ꢀGuaranteed Startup into Precharged Loads
•ꢀTemperature Range: 0°C to 70°C
•ꢀThis is a Pb-Free Device*
Applications
•ꢀDesktop Processors
•ꢀServer Processors
•ꢀHigh-End Notebook PCs
*For additional information on our Pb-Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
©ꢀ Semiconductor Components Industries, LLC, 2008
February, 2008 - Rev. 0
1
Publication Order Number:
NCP5393/D