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Infineon Technologies Electronic Components Datasheet

IR38064 Datasheet

Synchronous Buck Regulator

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DCDC Converter
35A Single-input Voltage, Synchronous Digital SupIRBuck
Buck Regulator with PMBus Interface IR38064
FEATURES
Internal LDO allows single 21V operation
Output Voltage Range: 0.5V to 0.875*PVin
0.5% accurate Reference Voltage
Programmable Switching Frequency up to
1.5MHz using Rt/Sync pin or PMBus
Internal Soft-Start with Pre-Bias Start-up
Enable input with Voltage Monitoring Capability
Remote Sense Amplifier with True Differential
Voltage Sensing
Fast mode I2C and 400 kHz PMBus interface
Sequencing and tracking capable
Selectable analog mode or digital mode
66 PMBus commands for configuration, control,
fault protection and telemetry.
Thermally compensated current limit with
configurable overcurrent responses
Optional light load efficiency mode
External synchronization with Smooth Clocking
Dedicated output voltage sensing protection
which remains active even when Enable is low.
Integrated MOSFETs and Bootstrap diode
Operating junction temp: -40oC<Tj<125oC
Small Size 5mmx7mm PQFN
Pb-Free (RoHS Compliant)
DESCRIPTION
The IR38064 PMBus SupIRBuck™ is an easy-to-use,
fully integrated and highly efficient DC/DC regulator
with I2C/PMBus interface. The onboard PWM controller
and MOSFETs make IR38064 a space-efficient
solution, providing accurate power delivery for low
output voltage and high current applications.
The IR38064 can be comprehensively configured via
PMBus and the configuration stored in internal
memory. In addition, PMBus commands allow run-time
control, fault status and telemetry.
The IR38064 can also operate as a standard analog
regulator without any programming and can provide
current and temperature telemetry in an analog format.
APPLICATIONS
Server Applications
Netcomm applications
Embedded telecom Systems
Distributed Point Of Load Architectures
ORDERING INFORMATION
Base Package
Part Type
IR38064
QFN
5x7 mm
Standard Pack
Form Quantity
Tape
& 4000
Reel
Orderable Part
Number
IR38064MTRPBF
Application Description
Standard part, 1.2Vout
1 Rev 3.7
Mar 14, 2018


Infineon Technologies Electronic Components Datasheet

IR38064 Datasheet

Synchronous Buck Regulator

No Preview Available !

BASIC APPLICATION
5.5V <Vin<21V
PGood
P1V8 Track_EN
Vcc/
LDO_out
Vin PVin
Boot
SW
PGood
Rt/SYNC
En/FCCM
Vp
ADDR
Vsns
RS+
RS-
RSo
Fb
Comp
PGnd LGnd
Vo
Figure 1: Typical Application Circuit
PINOUT DIAGRAM
IR38064
Figure 2: Performance Curve
Note: Pins 23 and 26 are connected internally
but appear separated externally (refer to
assembly drawing)
Figure 3: IR38064 package (Top View) 5mm x 7mm PQFN
2 Rev 3.7
Mar 14, 2018


Part Number IR38064
Description Synchronous Buck Regulator
Maker Infineon
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IR38064 Datasheet PDF






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