IR35 207
IR35207 dual output digital multi-phase controller
3+1-phase dual loop voltage regulator
Features
Low quiescent power dual output PWM controller supporting 3+1 configuration
Intel VR13 rev 1.1 , VR12.5 rev1.5, VR12 rev 1.7, IMVP8 rev 1.2 and memory VR modes
Switching frequency from 200 kHz to 2 MHz per phase
Infineon efficiency shaping features including dynamic phase control and automatic power state
switching
Programmable 1 or 2-phase operation for light loads and active diode emulation for very light loads
Digitally programmable load line - no external components are needed to set the load line
Infineon Adaptive Transient Algorithm (ATA) on both loops minimizes output bulk capacitors and system
cost
Auto-phase detection with PID coefficient auto-scaling
Fault protection: OVP, UVP, OCP, OTP, CFP, cycle-by-cycle current limit
I2C/SMBus/PMBus system interface for reporting of temperature, voltage, current and power telemetry
for both loops
Multiple Time Programming (MTP) with up to 27 writes for the USER section
Compatible with industry standard 3.3 V tri-state drivers
+3.3 V supply voltage; -40C to 85C ambient operation
Pb-Free, RoHS, 5x5 mm 40-pin, 0.4 mm pitch QFN
Description
The IR35207 is a dual loop, digital, multi-phase buck controller designed for CPU and DDR voltage regulation,
and is fully compliant with Intel VR13, VR12.5, VR12 & IMVP8.
The IR35207 includes Infineons efficiency shaping technology to deliver exceptional efficiency at minimum cost
across the entire load range. Infineons dynamic phase control adds/drops phases based upon load current. The
IR35207 can be configured to enter 1 or 2-phase operation and active diode emulation mode automatically or by
command.
The IR35207 offers digitally programmable load line thereby eliminating the need for any external load line
setting component. The controller is designed to work with integrated and DCR current sense power stages and
provides accurate input and output current reporting.
Infineons unique Adaptive Transient Algorithm (ATA), based on proprietary non-linear control algorithms
provides excellent transient response with reduced output capacitance. The controller also supports
programmable cycle-by-cycle current limit per phase for superior dynamic current limiting.
The device configuration can be easily defined using the Infineon PowIRCenter GUI and is stored in the on-chip
memory.
The IR35207 provides extensive OVP, UVP, OCP, OTP and CFP fault protection. The controller requires the fewest
possible external components and supports a clean interface with the power stages resulting in a simplified Bill
Of Materials (BOM).
Data Brief Please read the Important Notice and Warnings at the end of this document V 1.0
www.infineon.com page 1 of 4 2019-8-27
IR35207 dual output digital multi-phase controller
3+1-phase dual loop voltage regulator
Potential applications
Intel VR13, VR12.5, VR12 and IMVP8 based systems
Servers and high end desktop CPU VRs
Memory VR
Product validation
Qualified for industrial applications according to the relevant tests of JEDEC47/20/22
Product identification and ordering information
Part number Package type Standard pack Marking
form and quantity
1
IR35207 40-pin, QFN 5 mm x 5 mm Tape and reel 3000 IR35207MxxyyTRP
IR35207 40-pin, QFN 5 mm x 5 mm Tape and reel 3000 IR35207MTRPBF
IR35207 40-pin, QFN 5 mm x 5 mm Tray 4900 IR35207MTYPBF
1
Customer specific configuration file, where xx = customer ID and yy = configeration file (codes assigned by Infineon marketing).
Data Brief 2 of 4 V 1.0
2019-8-27