SupIRBuck HIGHLY INTEGRATED Description IR3811 SupIRBuc
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IR3811MPbF
SupIRBuck
HIGHLY INTEGRATED
Description
IR3811 SupIRBuckis easy-to-use, fully integrated highly efficient DC/DC regulator. onboard switching controller MOSFETs make IR3811 space-efficient solution, providing accurate power delivery output voltage applications. IR3811 operates from 4.5V input supply generates output voltage adjustable from 0.6V 0.80*Vin loads IR3811 configured tracking applications generate termination voltage (VTT) memory applications. versatile regulator offering programmability start time current limit, IR3811's fixed 600kHz switching frequency allows small external components. IR3811 also features important protection functions, such Pre-Bias startup, hiccup current limit thermal shutdown provide required system level security event fault conditions.
WIDE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR
Wide Input Voltage Range 2.5V Wide Output Voltage Range 0.6V Continuous Load Capability 600kHz High Frequency Operation Programmable Over-Current-Protection Hiccup Current Limit Tracking capability Memory Application Precision Reference Voltage (0.6V) Programmable Soft-Start Pre-Bias Start-up Thermal Protection Thermally Enhanced Package Small Size 5mmx6mm Pb-Free (RoHS Compliant)
Applications
Distributed Point-of-Loads Server Workstations Embedded Systems Storage Systems Applications Graphics Cards Game Consoles Computing Peripheral Voltage Regulators
Fig. Typical application diagram 11/28/07
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