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C3216X5R1E106M Datasheet(PDF) 1 Page - International Rectifier |
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C3216X5R1E106M Datasheet(HTML) 1 Page - International Rectifier |
1 / 47 page Dual output, 4A/Phase, Highly Integrated SupIRBuck TM Single-Input Voltage, Synchronous Buck Regulator IR3891 1 www.irf.com © 2013 International Rectifier May 08, 2013 FEATURES Single 5V to 21V application Wide Input Voltage Range from 1V to 21V with external Vcc Output Voltage Range: 0.5V to 0.86*PVin Dual output, 4A/Phase Enhanced Line/Load Regulation with Feed- Forward Programmable Switching Frequency up to 1.5MHz Internal Digital Soft-Start Enable input with Voltage Monitoring Capability Thermally compensated current limit and Hiccup Mode Over Current Protection External synchronization with Smooth Clocking Precision Reference Voltage (0.5V +/-1%) Seq pin for Sequencing Applications Integrated MOSFETs, drivers and Bootstrap diode Thermal Shut Down Open Feedback Line Protection Over Voltage Protection Interleaved Phases to reduce Input Capacitors Monotonic Start-Up Operating Junction Temp: -40oC<Tj<125oC Small Size 5mm x 6mm PQFN Lead-free, Halogen-free, and RoHS Compliant DESCRIPTION The IR3891 SupIRBuck TM is an easy-to-use, fully integrated and highly efficient DC/DC regulator. The onboard PWM controller and MOSFETs make IR3891 a space-efficient solution, providing accurate power delivery for low output voltage. IR3891 is a versatile regulator which offers programmability of switching frequency and a fixed current limit while operating in wide input and output voltage range. The switching frequency is programmable from 300kHz to 1.5MHz for an optimum solution. It also features important protection functions, such as Over Voltage Protection (OVP), Pre-Bias startup, hiccup current limit and thermal shutdown to give required system level security in the event of fault conditions. APPLICATIONS Sever Applications Netcom Applications Set Top Box Applications Storage Applications Embedded telecom Systems Distributed Point of Load Power Architectures Computing Peripheral Voltage regulators General DC-DC Converters ORDERING INFORMATION Base Part Number Package Type Standard Pack Orderable Part Number Form Quantity IR3891 PQFN 5mm x 6mm Tape and Reel 750 IR3891MTR1PBF IR3891 PQFN 5mm x 6mm Tape and Reel 4000 IR3891MTRPBF |
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