IR3801AMPBF

PD-60355 IR3801AMPbF SupIRBuckTM 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 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) Applications Description The IR3801A SupIRBuckTM is an easy-to-use, fully integrated and highly efficient DC/DC regulator. The onboard switching controller and MOSFETs make the IR3801A a space-efficient solution, providing accurate power delivery for low output voltage applications. The IR3801A operates from a single 4.5V to 14V input supply and generates an output voltage adjustable from 0.6V to 0.8*Vin at loads up to 9A. A versatile regulator offering programmability of startup time, power good threshold and current limit, the IR3801A’s fixed 300kHz switching frequency allows the use of small external components. Game Consoles Set-top Boxes Graphics Cards LCD TVs Desktop PCs Distributed Point-of-Loads Embedded Systems Computing Peripheral Voltage Regulators The IR3801A 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....