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IR3821AMPBF 数据表(PDF) 1 Page - International Rectifier |
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IR3821AMPBF 数据表(HTML) 1 Page - International Rectifier |
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1 / 1 page  11/28/07 1 PD-xxxxx IR3821AMPbF HIGHLY INTEGRATED 9A WIDE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR Features • Wide Input Voltage Range 2.5V to 21V • Wide Output Voltage Range 0.6V to 12V • Continuous 9A Load Capability • 300kHz High Frequency Operation • Programmable Over-Current Protection • Programmable PGood Output • Hiccup Current Limit • Precision Reference Voltage (0.6V) • Programmable Soft-Start • Pre-Bias Start-up • Thermal Protection • Thermally Enhanced Package • Small Size 5mmx6mm QFN • Pb-Free (RoHS Compliant) Fig. 1. Typical application diagram Description The IR3821A SupIRBuckTM is an easy-to-use, fully integrated and highly efficient DC/DC regulator. The onboard switching controller and MOSFETs make the IR3821A a space-efficient solution, providing accurate power delivery for low output voltage applications. The IR3821A operates from a 4.5V to 14V input supply and generates an output voltage adjustable from 0.6V to 0.75*Vin at loads up to 9A. A versatile regulator offering programmability of startup time, power good threshold and current limit, the IR3821A’s fixed 300kHz switching frequency allows the use of small external components. The IR3821A also features important protection functions, such as Pre-Bias startup, hiccup current limit and thermal shutdown to provide the required system level security in the event of fault conditions. Applications • Distributed Point-of-Loads • Server and Workstations • Embedded Systems • Storage Systems • DDR Applications • Graphics Cards • Game Consoles • Computing Peripheral Voltage Regulators SupIRBuckTM |
类似零件编号 - IR3821AMPBF |
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类似说明 - IR3821AMPBF |
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