IR36021 datasheet(1/41 Pages) IRF

номер детали	IR36021

подробное описание детали	DIGITAL POL BUCK CONTROLLER with I2C AND PMBus Interface

PDF	41 Pages

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производитель	IRF [International Rectifier]

домашняя страница	http://www.irf.com

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IR36021

DIGITAL POL BUCK CONTROLLER with I2C AND PMBus

Interface

February 27, 2013 | Rev 3.5

1

FEATURES



Dual output (2+1) Digital Controller with proprietary

control algorithm



Two‐phase 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: ‐40

0C 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



Pb‐Free, RoHS, 32‐pin 5mm X 5mm QFN package

BASIC APPLICATION

Figure 1: IR36021 Basic Application Circuit

DESCRIPTION

The IR36021 is a dual‐loop digital multi‐phase 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 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 Intuitive Power Designer (IPD) GUI and

stored in on‐chip 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 time‐to‐market (TTM) with “set‐and‐forget”

methodology.

APPLICATIONS

 Embedded Telecom Systems

 Netcom Applications

 Server Application

 Distributed Point of Load Power Architectures

PIN DIAGRAM

Figure 2: IR36021 Package Top View

Аналогичный номер детали - IR36021

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International Rectifier	IR36021	2Mb / 41P	DIGITAL POL BUCK CONTROLLER with I2C AND PMBus Interface
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