IR35201 Datasheet, PDF (1/60 Pages) International Rectifier – 8+0/7+1/6+2 Dual Output Digital Multi-Phase Controller

8+0/7+1/6+2 Dual Output Digital Multi-Phase Controller
IR35201
FEATURES
 Ultra Low Quiescent Power Dual output 8 phase
(8+0/7+1/ 6+2) PWM Controller
 VR12 Rev 1.7, VR12.5 Rev 1.5, IMVP8 Rev 1.2, AMD
SVI2, and Memory VR modes
 Switching frequency from 194KHz to 2MHz per phase
in 56 steps
 IR Efficiency Shaping Features including Dynamic
Phase Control and Automatic Power State Switching
 Programmable 1-phase or 2-phase operation for Light
Loads and Active Diode Emulation for very Light
Loads
 IR 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, CAT_FLT
 I2C/SMBus/PMBus system interface for reporting of
Temperature, Voltage, Current & Power telemetry for
both loops
 Multiple Time Programming (MTP) with integrated
charge pump for easy non-volatile programming
 Compatible with 3.3V tri-state drivers
 +3.3V supply voltage; -40^oC to 85^oC ambient
operation; -40^oC to 125^oC junction
 Pb-Free, RoHS, 7x7mm 56-pin, 0.4mm pitch QFN
APPLICATIONS
 VR12, VR12.5 and IMVP8 (overclocking only), AMD
SVI2 based systems
 Servers and High End Desktop CPU VRs
 High Performance Graphics Processors, Memory VR
DESCRIPTION
The IR35201 is a dual-loop digital multi-phase
buck controller designed for CPU voltage
regulation, and is fully compliant with Intel^®, VR12
Rev 1.7, VR12.5 Rev 1.5, IMVP8² Rev 1.2, and
AMD SVI2 REV 1.06 specifications.
The IR35201 includes IR’s Efficiency Shaping
Technology to deliver exceptional efficiency at
minimum cost across the entire load range. IR’s
Dynamic Phase Control adds/drops phases based
upon load current. The IR35201 can be configured
to enter 1 or 2-phase PS1 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.
IR35201 has 127 possible address values for both
the PMBus and I2C bus interfaces. The device
configuration can be easily defined using the IR
PowIRCenter GUI, and is stored in the on-chip
Non-Volatile Memory (NVM). This reduces external
components and minimizes the package size.
The IR35201 provides extensive OVP, UVP, OCP,
OTP & CAT_FLT fault protection, and includes
thermistor based temperature sensing or per
phase temperature reporting when using the IR
powIRstage. The controller is designed to work
with either Rdson current sense PowIRstages or
with DCR current sense.
The IR35201 also includes numerous VR design
simplifying and differentiating features, like register
diagnostics, which enable fast time-to-market.
ORDERING INFORMATION
Base Part
Number
IR35201
Package Type
56-pin, QFN 7 mm x 7 mm
Standard Pack
Form
Quantity
Tape and Reel
3000
Orderable
Part Number
IR35201MxxyyTRP¹
IR35201
56-pin, QFN 7 mm x 7 mm
Tape and Reel
3000
IR35201MTRPBF
IR35201
56-pin, QFN 7 mm x 7 mm
Tray
4900
IR35201MTYPBF
Notes:
1.
2.
Customer Specific Configuration File, where xx = Customer ID and yy = Configuration File (Codes assigned by IR Marketing).
IR35201 is not intended for application where ultra low power PS4 shutdown functionality is required.
1 ^{www.irf.com | © 2016 International Rectifier}
February 8, 2015 | V1.6