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International Rectifier Electronic Components Datasheet

IR36021 Datasheet

DIGITAL POL BUCK CONTROLLER

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DIGITAL POL BUCK CONTROLLER with I2C AND PMBus
Interface
IR36021
FEATURES
Dual output (2+1) Digital Controller with proprietary
control algorithm
Twophase operation available on Output #1 for
powering very high current ASICs and DSPs
I2C /PMBus interface for configuration & telemetry
with pin programmable address
Operating ambient temperature: 400C to 850C
3.3V bias operation
Independent loop switching frequencies from 200kHz
to 2MHz per phase
IR Efficiency Shaping with Dynamic Phase Control
(DPC)
Active Diode Emulation modes for light load efficiency
IR Adaptive Transient Algorithm (ATA) minimizes
output bulk capacitors and system cost
Independent OVP, UVP, OCP for each output
Thermal Protection (OTP) and VRHOT# flag
Multiple time programmable (MTP) memory for
custom configuration
Flexible I2C bus security features
PbFree, RoHS, 32pin 5mm X 5mm QFN package
BASIC APPLICATION
DESCRIPTION
The IR36021 is a dualloop digital multiphase buck
controller designed for point of load applications.
The IR36021 include Efficiency Shaping Technology to
deliver exceptional efficiency at minimum cost across the
entire load range. Dynamic Phase Control adds/drops
active phases based upon load current and can be
configured to enter 1phase operation and diode emulation
mode automatically or by command.
IR’s unique Adaptive Transient Algorithm (ATA), based on
proprietary nonlinear 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 Intuitive Power Designer (IPD) GUI and
stored in onchip MTP.
The IR36021 provides extensive OVP, UVP, OCP and OTP
fault protection and includes thermistor based temperature
sensing with VRHOT signal.
The IR36021 includes numerous features like register
diagnostics for fast design cycles and platform
differentiation, truly simplifying VRD design and enabling
fastest timetomarket (TTM) with “setandforget”
methodology.
APPLICATIONS
Embedded Telecom Systems
Netcom Applications
Server Application
Distributed Point of Load Power Architectures
PIN DIAGRAM
Figure 1: IR36021 Basic Application Circuit
1 November 29, 2017 | Rev 3.6
Figure 2: IR36021 Package Top View


International Rectifier Electronic Components Datasheet

IR36021 Datasheet

DIGITAL POL BUCK CONTROLLER

No Preview Available !

PIN DIAGRAM
DIGITAL POL BUCK CONTROLLER with I2C AND PMBus
Interface
IR36021
32 31 30 29 28 27 26 25
PGood2 1
24 RCSP2
VSEN1 2
23 RCSM2
VRTN1 3
22 VCC
RRES 4
TSEN 5
V18A 6
PGood1 7
EN2 8
32 Pin 5x5 QFN
Top View
33 GND
21 VSEN2
20 VRTN2
19 PWM2
18 PWM1b
17 PWM1a
9 10 11 12 13 14 15 16
Figure 3: IR36021 Package Bottom View
5mm X 5mm QFN
ORDERING INFORMATION
Package
M
Tape and Reel Qty
3000
Part Number
IR36021MTRPbF
2 November 29, 2017 | Rev 3.6


Part Number IR36021
Description DIGITAL POL BUCK CONTROLLER
Maker International Rectifier
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IR36021 Datasheet PDF






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