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ERJ-3EKF1270V Datasheet(PDF) 1 Page - International Rectifier |
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ERJ-3EKF1270V Datasheet(HTML) 1 Page - International Rectifier |
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1 / 41 page  IR3823 1 www.irf.com © 2012 International Rectifier August 1, 2013 3A Highly Integrated SupIRBuck ® Single-Input Voltage, Synchronous Buck Regulator FEATURES DESCRIPTION Single input voltage range from 5V to 21V Wide Input voltage range from 1.0V to 21V with external VCC bias voltage Output voltage from 0.6V to 0.86% of PVin Enhanced line/load regulation with feedforward Programmable switching frequency up to 1.5MHz Three user selectable soft-start time options Thermally compensated current limit with robust hiccup mode over current protection Synchronization to an external clock Precise reference voltage (0.6V+/-0.6%) Open-drain PGood indication Output over voltage protection Enable Input with Under-Voltage Lockout (UVLO) VCC Under-Voltage Lockout (UVLO) Enhanced Pre-bias start-up Integrated MOSFET drivers and Bootstrap Diode Thermal shut-down -40°C to 125°C operating junction temperature 3.5mm x 3.5mm PQFN package Lead-free, Halogen-free and RoHS6 Compliant The IR3823 SupIRBuck ® is a 3A easy-to-use, fully integrated and highly efficient synchronous Buck regulator intended for Point-Of-Load (POL) applications. The IR3823 features programmable switching frequency from 300kHz to 1.5MHz, three selectable soft-start time options, and smooth synchronization to an external clock. The IR3823 uses voltage mode control employing a proprietary PWM modulator, allowing high control bandwidth and fast loop response with less output capacitors. The other important functions include thermally compensated over current protection, output over voltage protection and thermal shut-down, etc. The IR3823 is offered in a small 3.5mm x 3.5mm PQFN package with excellent thermal performance. APPLICATIONS Computing Applications Set Top Box Applications Storage Applications Data Center Applications Telecom Applications Distributed Point of Load Power Architectures ORDERING INFORMATION Base Part Number Package Type Standard Pack Orderable Part Number Form Quantity IR3823 PQFN 3.5 mm x 3.5 mm Tape and Reel 750 IR3823MTR1PBF IR3823 PQFN 3.5 mm x 3.5 mm Tape and Reel 4000 IR3823MTRPBF IR3823 PBF – Lead Free TR/TR1 – Tape and Reel M – PQFN Package |
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