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AOZ1022PI Datasheet(PDF) 1 Page - Alpha & Omega Semiconductors |
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AOZ1022PI Datasheet(HTML) 1 Page - Alpha & Omega Semiconductors |
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1 / 17 page  Rev. 1.6 December 2010 www.aosmd.com Page 1 of 17 AOZ1022 EZBuck™ 3A Synchronous Buck Regulator General Description The AOZ1022 is a synchronous high efficiency, simple to use, 3A buck regulator. The AOZ1022 works from a 4.5V to 16V input voltage range, and provides up to 3A of continuous output current with an output voltage adjustable down to 0.8V. The AOZ1022 comes in a DFN 5x4 and an EPAD SO-8 package and is rated over a -40°C to +85°C ambient temperature range. Features ● 4.5V to 16V operating input voltage range ● Synchronous rectification: 100mΩ internal high-side switch and 20m Ω Internal low-side switch ● High efficiency: up to 95% ● Internal soft start ● Active high power good state ● Output voltage adjustable to 0.8V ● 3A continuous output current ● Fixed 500kHz PWM operation ● Cycle-by-cycle current limit ● Pre-bias start-up ● Short-circuit protection ● Thermal shutdown ● Small size DFN 5x4 and EPAD SO-8 package Applications ● Point of load DC-DC conversion ● PCIe graphics cards ● Set top boxes ● DVD drives and HDD ● LCD panels ● Cable modems ● Telecom/networking/datacom equipment Typical Application Figure 1. 3.3V/3A Synchronous Buck Regulator LX PGOOD VIN VIN VOUT 5V DC FB PGND EN COMP AGND C2, C3 22µF Ceramic R1 R3 R2 CC RC C1 22µF Ceramic L1 4.7µH AOZ1022 |
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