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ECJ-BVB1C105M Datasheet(PDF) 1 Page - International Rectifier |
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ECJ-BVB1C105M Datasheet(HTML) 1 Page - International Rectifier |
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1 / 34 page  Rev 11.0 PD-97505 IR3840AMPbF 1 Features • Greater than 96% Maximum Efficiency • Wide Input Voltage Range 1.5V to 16V • Wide Output Voltage Range 0.7V to 0.9*Vin • Continuous 14A Load Capability • Integrated Bootstrap-diode • High Bandwidth E/A for excellent transient performance • Programmable Switching Frequency up to 1.0MHz • 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 • Pin compatible option for 4A, 8A and 12A devices • 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 Fig. 1. Typical application diagram Description The IR3840A 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 IR3840A a space-efficient solution, providing accurate power delivery for low output voltage applications. IR3840A 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 1.0MHz 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 14A 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 • Distributed Point of Load Power Architectures • Netcom Applications • Computing Peripheral Voltage Regulators • General DC-DC Converters |
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