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MCR03EZPFX4021 数据表(PDF) 1 Page - International Rectifier |
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MCR03EZPFX4021 数据表(HTML) 1 Page - International Rectifier |
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1 / 35 page  Rev 4.0 1 PD-97516 IR3853MPbF Features • Greater than 95% Maximum Efficiency • Wide Input Voltage Range 1.5V to 21V • Wide Output Voltage Range 0.7V to 0.9*Vin • Continuous 4A Load Capability • Integrated Bootstrap-diode • High Bandwidth E/A for excellent transient performance • Programmable Switching Frequency up to 1.5MHz • Programmable Over Current Protection • Over Voltage Protection • Dedicated input for output voltage monitoring • Programmable 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 • External Synchronization • -40oC to 125oC operating junction temperature • Thermal Protection • 4mm x 5mm Power QFN Package • Halogen Free, Lead Free and RoHS compliant Fig. 1. Typical application diagram Description The IR3853 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 IR3853 a space-efficient solution, providing accurate power delivery for low output voltage applications. IR3853 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, over-voltage, and thermal shutdown to give required system level security in the event of fault conditions. HIGHLY EFFICIENT INTEGRATED 4A, SYNCHRONOUS BUCK REGULATOR SupIRBuckTM • Distributed Point of Load Power Architectures • Netcom Applications • Computing Peripheral Voltage Regulators • General DC-DC Converters Applications • Server Applications • Storage Applications • Embedded Telecom Systems |
类似零件编号 - MCR03EZPFX4021 |
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类似说明 - MCR03EZPFX4021 |
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