AOZ1031AI

AOZ1031AI EZBuck™ 3A Synchronous Buck Regulator General Description The AOZ1031A is a high efficiency, easy to use, 3A synchronous buck regulator. The AOZ1031A works from 4.5V to 18V input voltage range, and provides up to 3A of continuous output current with an output voltage adjustable down to 0.8V. The AOZ1031A comes in a SO-8 package and is rated over a -40°C to +85°C operating ambient temperature range. Features z 4.5V to 18V operating input voltage range z Synchronous Buck: 80mΩ internal high-side switch and 30mΩ internal low-side switch with integrated schottky diode z High efficiency: up to 95% z Internal soft start z Output voltage adjustable to 0.8V z 3A continuous output current z Fixed 600kHz PWM operation z Pulse skipping at light load for high efficiency over entire load range z Cycle-by-cycle current limit z Pre-bias start-up z Short-circuit protection z Thermal shutdown z SO-8 package Applications z Point of load DC/DC converters z LCD TV z Set top boxes z DVD/Blu-ray players/recorders z Cable modems z PCIe graphics cards z Telecom/Networking/Datacom equipment Typical Application VIN C1 22µF RC CC VIN EN AOZ1031 LX COMP FB AGND PGND L1 4.7µH R1 R2 VOUT C2, C3 22µF Rev. 1.6 March 2010 Figure 1. 3.3V 3A Synchronous Buck Regulator www.aosmd.com Page 1 of 15 AOZ1031AI Ordering Information Part Number AOZ1031AI Ambient Temperature Range -40°C to +85°C Package SO-8 Environmental RoHS Compliant Green Product AOS Green Products use reduced levels...