SupIRBuck HIGHLY INTEGRATED Description IR3820A SupIRBu
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IR3820AMPbF
SupIRBuck
HIGHLY INTEGRATED
Description
IR3820A SupIRBuckis easy-to-use, fully integrated highly efficient DC/DC regulator. onboard switching controller MOSFETs make IR3820A space-efficient solution, providing accurate power delivery output voltage applications. IR3820A operates from 4.5V input supply generates output voltage adjustable from 0.6V 0.75*Vin loads 14A. versatile regulator offering programmability startup time, power good threshold current limit, IR3820A's fixed 300kHz switching frequency allows small external components. IR3820A 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 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 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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