Dual Output Digital Multi-Phase Controller
IR3567B
www.irf.com | © 2013 International Rectifier August 1, 2013 | V1.04
1
FEATURES
Dual output 6+2 phase PWM Controller
Easiest layout and fewest pins in the industry
Fully supports AMD® SVI1 & SVI2 with dual
OCP and Intel® VR12 & VR12.5
Complies with VR12.5 Rev 1.3 requirement for
SVID register 15h to have <200 µSec filter
Overclocking & Gaming Mode
Switching frequency from 200kHz to 2MHz
per phase
IR Efficiency Shaping Features including
Dynamic Phase Control and Automatic Power
State Switching
IR Adaptive Transient Algorithm (ATA) on both
loops minimizes output bulk capacitors and
system cost
Auto-Phase Detection with auto-compensation
Per-Loop Fault Protection: OVP, UVP, OCP,
OTP, CFP
I2C/SMBus/PMBus system interface for
telemetry of Temperature, Voltage, Current &
Power for
both loops
Multiple Time Programming (MTP) with
integrated charge pump for easy custom
configuration
Compatible with IR ATL and 3.3V tri-state
Drivers
+3.3V supply voltage; -40°C to 85°C ambient
operation
Pb-Free, RoHS, 7x7mm, 56-pin, 0.4mm pitch
QFN
DESCRIPTION
The IR3567B is a dual-loop digital multi-phase buck
controller designed for CPU voltage regulation and is
fully compliant with AMD® SVI1 & SVI2 and Intel©
VR12 & VR12.5 specifications.
The IR3567B includes IR’s Efficiency Shaping
Technology to deliver exceptional efficiency at
minimum cost across the entire load range. IR Variable
Gate Drive optimizes the MOSFET gate drive voltage
based on real-time load current. IR’s Dynamic Phase
Control adds/drops active phases based upon load
current and can be configured to enter 1-phase
operation and diode emulation mode automatically or
by command.
IR’s unique Adaptive Transient Algorithm (ATA), based
on proprietary non-linear digital PWM algorithms,
minimizes output bulk capacitors and Multiple Time
Programmable (MTP) storage saves pins and enables
a small package size. Device configuration and fault
parameters are easily defined using the IR Digital
Power Design Center (DPDC) GUI and stored in on-
chip MTP.
The IR3567B provides extensive OVP, UVP, OCP and
OTP fault protection and includes thermistor based
temperature sensing with VRHOT signal.
The IR3567B includes numerous features like register
diagnostics for fast design cycles and platform
differentiation, simplifying VRD design and enabling
fastest time-to-market (TTM) with “set-and-forget”
methodology.
APPLICATIONS
AMD® SVI1 & SVI2, Intel® VR12 & VR12.5
based systems
Desktop & Notebook CPU VRs
High Performance Graphics Processors
ORDERING INFORMATION
Base Part
Number
Package Type
Standard Pack
Orderable
Part Number
Quantity
IR3567B
QFN 7 mm x 7 mm
3000
IR3567BMxxyyTRP1
IR3567B
QFN 7 mm x 7 mm
3000
IR3567BMTRPBF
IR3567B
QFN 7 mm x 7 mm
2600
IR3567BMTYPBF
Notes:
1. Customer Specific Configuration File, where xx = Customer ID and yy = Configuration File (Codes assigned by IR Marketing).
Dual Output Digital Multi-Phase Controller
IR3567B
www.irf.com | © 2013 International Rectifier August 1, 2013 | V1.04
2
ORDERING INFORMATION
IR3567BM
SM_ALERT#
PWM5
ISEN2_L2
EN
VRTN
RCSM
ISEN5
ISEN4
ISEN3
PWM6
VSEN
SM_DIO
PWM4
PWRGD/
VRDY1
IRTN3
IRTN4
IRTN2_L2
IRTN5
RCSP
TSEN1
VRHOT_ICRIT#
PWM3
VINSEN
ADDR_PROT
V18 A
RRES
VCC
ISEN2
ISEN1
IRTN1
IRTN2
PWM2
PWM1
NC
RCSM_L2
RCSP_L2
SM_CLK
CFP
NC
PWROK/EN_L2/
INMODE
VRDY2
PWM2_L2
VRTN_L2
VSEN_L2
57 GND
IR3567B
56 Pin 7 x 7 QFN
Top View
55 5153 4854 5052 474956 46 45 4344
1
2
7
8
5
6
3
4
10
9
12
11
14
13
16 2018 2317 2119 242215 25 26 2827
42
41
36
35
38
37
40
39
33
34
31
32
29
30
ISEN 6
NC
VARGATE
PWM1_L2
ISEN1_L2
IRTN1_L2
IRTN6
VDDIO/
SV_ADDR
SVT/
SV_ALERT
SV_DIO/
VIDSEL0
SV_CLK/
VIDSEL1
TSNE2/
VAUXSEN
Figure 1: IR3567B Pin Diagram Enlarged
P/PBF – Lead Free
TR – Tape & Reel / TY - Tray
yy – Configuration File ID
xx – Customer ID
Package Type (QFN)