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DESCRIPTION
The IR3477 SupIRBuckTM is an easy‐to‐use, fully integrated and highly efficient DC/DC voltage regulator. The onboard constant on time hysteretic controller and MOSFETs make IR3477 a space‐efficient solution that delivers up to 15A of precisely controlled output voltage.
FEATURES
? Input Voltage Range: 3V to 27V
? Output Voltage Range: 0.5V to 12V
? Continuous 15A Load Capability
? Constant On‐Time Control
? Compensation Loop not Required
? Excellent Efficiency at Very Low Output Currents
? Programmable Switching Frequency and Soft Start
? Thermally Compensated Over Current Protection
? Power Good Output
? Precision Voltage Reference (0.5V, +/‐1)
? Enable Input with Voltage Monitoring Capability
? Pre‐bias Start Up
? Thermal Shut Down
? Under/Over Voltage Fault Protection
? Forced Continuous Conduction Mode Option
? Small, Low Profile 5mm x 6mm QFN Package
APPLICATIONS
? Notebook and Desktop Computers
? Consumer Electronics – STB, LCD, TV, Printers
? 12V and 24V Distributed Power Systems
? General Purpose POL DC‐DC Converters
? Game Consoles and Graphics Cards
