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ON Semiconductor - 2/3/4-Phase Controller

Numéro de référence NCP5395G
Description 2/3/4-Phase Controller
Fabricant ON Semiconductor 
Logo ON Semiconductor 





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NCP5395G fiche technique
NCP5395G
2/3/4-Phase Controller with
On Board Gate Drivers for
CPU Applications
The NCP5395G provides up to a fourphase 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. It also receives
power saving command (PSI) from CPU, and operates in a single
phase emulation diode mode to obtain a high efficiency at light load.
Dualedge pulsewidth modulation (PWM) combined with precise
inductor current sensing provides the fastest initial response to
dynamic load events both in power saving and normal modes.
Dualedge multiphase modulation reduces the total bulk and ceramic
output capacitance required therefore reducing the system cost to meet
transient regulation specifications.
The on board gate drivers includes adaptive non overlap and power
saving operation. A high performance operational error amplifier is
provided to simplify compensation of the system. Patented Dynamic
Reference Injection further simplifies loop compensation by
eliminating the need to compromise between closedloop transient
response and Dynamic VID performance.
Features
Meets Intel’s VR11.1 and AMD’s 6 Bit Code Specifications
Enhanced Power Saving Function
Internal Soft Start
Dualedge PWM for Fastest Initial Response to Transient Loading
High Performance Operational Error Amplifier
Dynamic Reference Injection (Patent #US07057381)
DAC Range from 0.5 V to 1.6 V
DAC Feed Forward Function (Patient Pending)
±0.5% DAC Voltage Accuracy from 1.0 V to 1.6 V
True Differential Remote Voltage Sensing Amplifier
PhasetoPhase Current Balancing
“Lossless” Differential Inductor Current Sensing
Accurate Current Monitoring (IMON)
Differential Current Sense Amplifiers for Each Phase
Adaptive Voltage Positioning (AVP)
Oscillator Frequency Range of 125 kHz 1 MHz
Latched Over Voltage Protection (OVP)
Guaranteed Startup into PreCharged Loads
Threshold Sensitive Enable Pin for VTT Sensing
Power Good Output with Internal Delays
Output Disable Control Turn Off of Both Phase Pair MOSFETs
Thermally Compensated Current Monitoring
AdaptiveNonOverlap Gate Drive Circuit
Thermal Shutdown Protection This is a PbFree Device
http://onsemi.com
QFN48, 7x7
CASE 485AJ
1 48
MARKING DIAGRAM
48
1
NCP5395G
AWLYYWWG
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
G = PbFree Package
148
BPGS3I
VID0
VVVIIIDDD321
VID7/VVVAIIIMDDDD654
ROSC
ILIM
AGND
Downbonded to
Exposed Flag
EVGBNRG4R1 DY
CCCSSS211NPN
CS2P
CCCCSSSS4433PNPN
ORDERING INFORMATION
Device
Package
Shipping
NCP5395GMNR2G QFN48 2500/Tape & Reel
(PbFree)
†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.
Applications
Graphic Cards, Desktop Processors
© Semiconductor Components Industries, LLC, 2012
February, 2012 Rev. 2
1
Publication Order Number:
NCP5395G/D

PagesPages 25
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