IR38063M_15 Datasheet, PDF (1/2 Pages) International Rectifier – Highly Integrated 25A Single-input Voltage, Synchronous Buck Regulator with PMBus Interface

PRELIMINARY DATASHEET
Highly Integrated 25A Single-input
Voltage, Synchronous Buck Regulator
with PMBus Interface
IR38063
FEATURES
DESCRIPTION
• Internal LDO allows single 21V operation
The IR38063 SupIRBuck™ is an easy-to-use, fully
• Output Voltage Range: 0.5V to 0.875*PVin
• 0.5% accurate Reference Voltage
integrated and highly efficient DC/DC regulator with
I2C/PMBus interface. The onboard PWM controller and
MOSFETs make IR38063 a space-efficient solution,
• Programmable Switching Frequency up to ^{providing accurate power delivery for low output}
n _{1.5MHz using Rt/Sync pin or PMBus}
voltage and high current applications.
tio ^{• Internal Soft-Start with Pre-Bias Start-up}
IR38063 is a versatile regulator which offers
• Enable input with Voltage Monitoring Capability programmability of switching frequency and current
• Remote Sense Amplifier with True Differential ^{limit while operating in wide input and output voltage}
Voltage Sensing
range.
a _{• Fast mode I2C and 400 kHz PMBus interface for The switching frequency is programmable from 250}
sequencing, margining and telemetry.
kHz to 1.5MHz for an optimum solution.
m _{• PMBus configurable fault thresholds for input}
r ^{UVLO, output OVP, OCP and thermal shutdown. It also features important protection functions, such as}
• Thermally compensated pulse-by-pulse current
fo limit and Hiccup Mode Over Current Protection Pre-Bias startup, hiccup current limit and thermal
shutdown to give required system level security in the
• Optional light load efficiency mode with reduced _{event of fault conditions}
switching frequency
In ^{• External synchronization with Smooth Clocking}
• Dedicated output voltage sensing protection
which remains active even when Enable is low. APPLICATIONS
d • Integrated MOSFET drivers and Bootstrap diode
• Operating junction temp: -40oC<Tj<125oC
e _{• Small Size 5mmx7mm PQFN}
c _{• Pb-Free (RoHS Compliant)}
• Server Applications
• Netcomm applications
• Embedded telecom Systems
• Distributed Point Of Load Architectures
n _{ORDERING INFORMATION}
va _{Base Part Number}
Ad^IR38063
Package Type
QFN 5 mm x 7 mm
Standard Pack
Form
Quantity
Tape and Reel
4000
Orderable Part Number
IR38063MTRPBF
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April 28, 2014