Single Output Digital Multi-Phase Controller
IR3563B
FEATURES
8-phase single output PWM Controller
Intel® VR12 and VR12.5 modes & Memory VR
mode
Complies with VR12.5 Rev 1.3 requirement for SVID
register 15h to have <200 µSec filter
Overclocking & Gaming Mode
PVI and SVI GPU VR modes
Switching frequency from 200kHz to 2MHz
per phase
IR Efficiency Shaping Features including Variable
Gate Drive, Dynamic Phase Control and
Automatic Power State Switching
IR Adaptive Transient Algorithm (ATA) minimizes
output bulk capacitors and system cost
Auto-Phase Detection with auto-compensation
Fault Protection: OVP, UVP, OCP, OTP, CFP
I2C/SMBus/PMBus system interface for telemetry
of Temperature, Voltage, Current & Power
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; -40ºC to 85ºC ambient
operation
Pb-Free, RoHS, 6x6mm 48-pin, 0.4mm pitch QFN
DESCRIPTION
The IR3563B is a single-loop digital multi-phase
buck controller that controls up to 8 phases. The
IR3563B is fully Intel® VR12 and VR12.5 compliant.
The IR3563B 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 phases based
upon load current. The IR3563B can be configured
to enter 1-phase operation and active 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.
The I2C/PMBus interface can communicate with up
to 16 IR3563B-based VR loops. Device
configuration and fault parameters are easily defined
using the IR Digital Power Design Center (DPDC)
GUI and stored in on-chip MTP. MTP storage saves
pins and enables a small package size.
The IR3563B provides extensive OVP, UVP, OCP
and OTP fault protection and includes thermistor
based temperature sensing with VRHOT signal.
The IR3563B also includes numerous features like
register diagnostics for fast design cycles and
platform differentiation, simplifying VRD design and
enabling fastest time-to-market with its “set-and-
forget” methodology.
APPLICATIONS
Intel® VR12 and VR12.5 based systems
Overclocked & Gaming platforms
ORDERING INFORMATION
Base Part
Number
IR3563B
IR3563B
IR3563B
Notes:
1.
Customer Specific Configuration File, where xx = Customer ID and yy = Configuration File (Codes assigned by IR Marketing).
Package Type
Form
QFN 6 mm x 6 mm
QFN 6 mm x 6 mm
QFN 6 mm x 6 mm
Tape and Reel
Tape and Reel
Tray
Standard Pack
Quantity
3000
3000
4900
Orderable
Part Number
IR3563BMxxyyTRP
IR3563BMTRPBF
IR3563BMTYPBF
1
1
www.irf.com
| © 2013 International Rectifier
August 1, 2013 | V1.04
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