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ERJ-3EKF1580V Datasheet(PDF) 1 Page - International Rectifier

Part # ERJ-3EKF1580V
Description  HIGHLY EFFICIENT INTEGRATED 2A SYNCHRONOUS BUCK REGULATOR
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Manufacturer  IRF [International Rectifier]
Direct Link  http://www.irf.com
Logo IRF - International Rectifier

ERJ-3EKF1580V Datasheet(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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