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International Rectifier Electronic Components Datasheet

IR35211 Datasheet

Dual Output Digital Multi-Phase Controller

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  Dual Output Digital Multi-Phase Controller IR35211
FEATURES
Dual output 3+1 phase PWM Controller
Easiest layout and fewest pins in the industry
Fully supports AMD® SVI1 & SVI2 with dual
OCP and Intel® VR12 & VR12.5
Overclocking & Gaming Mode
Switching frequency from 200kHz to 2MHz
per phase
IR Efficiency Shaping Features including
Dynamic Phase Control and Automatic Power
State Switching
Programmable 1-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 auto-
compensation
Per-Loop Fault Protection: OVP, UVP, OCP,
OTP
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, Halogen Free, RoHS, 6x6mm,
40-pin, 0.5 mm pitch QFN
DESCRIPTION
The IR35211 is a dual loop digital multi-phase buck
controller designed for CPU voltage regulation and is fully
compliant to AMD® SVI1 & SVI2 Rev 1.2 & Intel© VR12
Rev 1.5 PWM specification and VR12.5 Rev 1.3 PWM
specification.
The IR35211 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 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 IR35211 provides extensive OVP, UVP, OCP and
OTP fault protection and includes thermistor based
temperature sensing with VRHOT signal.
The IR35211 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
IR35211
Package Type
QFN 6 mm x 6 mm
Standard Pack
Form
Quantity
Tape and Reel
3000
Orderable
Part Number
IR35211MxxyyTRP1
IR35211
QFN 6 mm x 6 mm
Tape and Reel
3000
IR35211MTRPBF
IR35211
QFN 6 mm x 6 mm
Tray
4900
IR35211MTYPBF
Notes 1: Customer Specific Configuration File, where xx = Customer ID and yy = Configuration File (Codes assigned by IR Marketing).
 
  1 www.irf.com   |  © 2014 International Rectifier
July 24, 2014  |  V1.00


International Rectifier Electronic Components Datasheet

IR35211 Datasheet

Dual Output Digital Multi-Phase Controller

No Preview Available !

  Dual Output Digital Multi-Phase Controller IR35211
ORDERING INFORMATION
  IR35211M            
P/PBF – Lead Free
TR – Tape & Reel / TY - Tray
yy – Configuration File ID
xx – Customer ID
Package Type (QFN)
40 39 38 37 36 35 34 33 32 31
RCSP 1
RCSM 2
VRDY2 3
VSEN 4
VRTN 5
RRES 6
TSEN1 7
V18A 8
VRDY1 9
PWROK/EN_L2/
IN_MODE
10
IR35211
40 Pin 6x6 QFN
Top View
41 GND
11 12 13 14 15 16 17 18 19 20
30 RCSM_L2
29 VCC
28 VSEN_L2
27 VRTN_L2
26 PWM1_L2
25 PWM3
24 PWM2
23 PWM1
22
TSEN2/
VAUXSEN
21 NC
Figure 1: IR35211 Pin Diagram
  2 www.irf.com   |  © 2014 International Rectifier
July 24, 2014  |  V1.00


Part Number IR35211
Description Dual Output Digital Multi-Phase Controller
Maker International Rectifier
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IR35211 Datasheet PDF






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