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MCR03EZPFX1002 데이터시트(PDF) 1 Page - International Rectifier

부품명 MCR03EZPFX1002
상세설명  HIGHLY EFFICIENT INTEGRATED 2A SYNCHRONOUS BUCK REGULATOR
PDF  34 Pages
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제조업체  IRF [International Rectifier]
홈페이지  http://www.irf.com
Logo IRF - International Rectifier

MCR03EZPFX1002 데이터시트(HTML) 1 Page - International Rectifier

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Rev 13.0
1
PD-97507
IR3843WMPbF
Features
•
Wide Input Voltage Range 1.5V to 16V
•
Wide Output Voltage Range 0.7V to 0.9*Vin
•
Continuous 2A Load Capability
•
Integrated Bootstrap-diode
•
High Bandwidth E/A for excellent transient
performance
•
Programmable Switching Frequency up to 1.5MHz
•
Programmable Over Current Protection
•
PGood output
•
Hiccup Current Limit
•
Precision Reference Voltage (0.7V, +/-1%)
•
Programmable Soft-Start
•
Enable Input with Voltage Monitoring Capability
•
Enhanced Pre-Bias Start-up
•
Seq input for Tracking applications
•
-40oC to 125oC operating junction temperature
•
Thermal Protection
•
Multiple current ratings in pin compatible footprint
•
5mm x 6mm Power QFN Package, 0.9 mm height
•
Lead-free, halogen-free and RoHS compliant
Applications
•
Server Applications
•
Storage Applications
•
Embedded Telecom Systems
•
Distributed Point of Load Power Architectures
Fig. 1. Typical application diagram
Description
The IR3843W SupIRBuckTM is an easy-to-use,
fully integrated and highly efficient DC/DC
synchronous Buck regulator. The MOSFETs co-
packaged with the on-chip PWM controller make
IR3843W a space-efficient solution, providing
accurate power delivery for low output voltage
applications.
IR3843W is a versatile regulator which offers
programmability of start up time, switching
frequency and current limit while operating in
wide input and output voltage range.
The switching frequency is programmable from
250kHz to 1.5MHz for an optimum solution.
It also features important protection functions,
such as Pre-Bias startup, hiccup current limit and
thermal shutdown to give required system level
security in the event of fault conditions.
HIGHLY EFFICIENT
INTEGRATED 2A SYNCHRONOUS BUCK REGULATOR
SupIRBuckTM
Boot
Vcc
Fb
Comp
Gnd
PGnd
SW
OCSet
SS/ SD
4.5V <Vcc<5.5V
Vo
PGood
PGood
Enable
Rt
1.5V <Vin<16V
Vin
Seq
•
Netcom Applications
•
Computing Peripheral Voltage Regulators
•
General DC-DC Converters


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