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  ON Semiconductor Electronic Components Datasheet  

NCP4206 Datasheet

VR11.1 Digital Programmable Multi-Phase Synchronous Buck Converter

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NCP4206 pdf
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


  ON Semiconductor Electronic Components Datasheet  

NCP4206 Datasheet

VR11.1 Digital Programmable Multi-Phase Synchronous Buck Converter

No Preview Available !

NCP4206 pdf
VCC
39
SHUNT
REGULATOR
VCC3
1
3.3 V
REGULATOR
UVLO
SHUTDOWN
GND 7
EN/VTT 6
850 mV
SCL SDA
54
SMBUS
NCP4206
RT RAMPADJ
12 13
OSCILLATOR
CONTROL
CSREF
CONTROL
CONTROL
CURRENT
BALANCING
CIRCUIT
CMP
CMP
CMP
CMP
CMP
CMP
48 PSI
21 ODN
SET EN
RESET
22 OD1
38 PWM1
RESET
RESET
RESET
RESET
16 PHASE
DRIVER
LOGIC
RESET
37 PWM2
36 PWM3
35 PWM4
34 PWM5
33 PWM6
PWRGD 2
DELAY
ALERT 3
COMPARATORS
EN
FB
FBRTN
IMON
MUX
DIGITAL
REGISTERS
ADC
CONTROL
ILIMIFS 20
IREF 11
COMP 15
CROWBAR
CURRENT
LIMIT
30 SW1
29 SW2
28 SW3
27 SW4
26 SW5
25 SW6
CONTROL
CURRENT
MEASUREMENT
AND LIMIT
CONTROL
19 CSCOMP
17 CSREF
18 CSSUM
10 IMON
16 FB
NCP4206
PRECISION
REFERENCE
14
FBRTN
CONTROL
VID DAC
47 46 45 44 43 42 41 40
VID0 VID1 VID2 VID3 VID4 VID5 VID6 VID7
Figure 1. Simplified Block Diagram
BOOT VOLTAGE
AND SOFTSTART
CONTROL
http://onsemi.com
2


Part Number NCP4206
Description VR11.1 Digital Programmable Multi-Phase Synchronous Buck Converter
Maker ON Semiconductor
Total Page 30 Pages
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