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ON Semiconductor - VR11.1 Digital Programmable Multi-Phase Synchronous Buck Converter

Numéro de référence NCP4206
Description VR11.1 Digital Programmable Multi-Phase Synchronous Buck Converter
Fabricant ON Semiconductor 
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NCP4206 fiche technique
NCP4206
VR11.1 Digital
Programmable Multi-Phase
Synchronous Buck
Converter with SMBus
The NCP4206 is an integrated power control IC with a SMBus
interface. The NCP4206 is a highly efficient, multiphase, synchronous
buck switching regulator controller, which aids design of High
Efficiency and High Density solutions. The NCP4206 can be
programmed for 1, 2, 3, 4, 5or 6 phase operation, allowing for
the construction of up to 6 complementary buck switching stages.
The NCP4206 supports PSI, which is a power state indicator and
can be used to reduce the number of operating phases at light loads.
The SMBus interface enables digital programming of key system
parameters to optimize system performance and provide feedback to
the system.
The NCP4206 has a built in shunt regulator that allows the part to be
powered from the +12 V system supply through a series resistor. The
NCP4206 is specified over the extended commercial temperature
range of 0°C to +85°C and is available in a 48 Lead QFN package.
Features
Selectable 1, 2, 3, 4, 5or 6 Phase Operation at Up to 1.5 MHz
per Phase
Logiclevel PWM Outputs for Interface to External High Power
Drivers
FastEnhanced PWM Flex Mode for Excellent Load Transient
Performance
Active Current Balancing Between All Output Phases
Builtin Powergood/Crowbar Blanking Supports OntheFly VID
Code Changes
Digitally Programmable 0.375 V to 1.6 V Output Supports VR11.1
Specifications
ShortCircuit Protection With Latchoff Delay
Supports PSI# Power Saving Mode During Light Loads
This is a PbFree Device
Typical Applications
Desktop PC
Servers
http://onsemi.com
1 48
QFN 48
CASE 485AJ
MARKING DIAGRAM
NCP4206
AWLYYWWG
A = Assembly Lot
WL = Wafer Lot
YY = Year
WW = Work Week
G = PbFree Package
PIN ASSIGNMENT
VCC3
PWRDG
ALERT
SDA
SCL
EN
GND
NC
NC
IMON
IREF
RT
1
2
3
4
5
6
7
8
9
10
11
12
PIN 1
INDICATOR
NCP4206
TOP VIEW
(Not to Scale)
36 PWM3
35 PWM4
34 PWM5
33 PWM6
32 VCC
31 VCC
30 SW1
29 SW2
28 SW3
27 SW4
26 SW5
25 SW6
© Semiconductor Components Industries, LLC, 2013
September, 2013 Rev. 2
ORDERING INFORMATION
Device
NCP4206MNR2G
Package
QFN48
(PbFree)
Shipping
2500 / Tape &
Reel
†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.
1 Publication Order Number:
NCP4206/D

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