AOZ1016AIL, 规格书,Datasheet 资料.pdf

AOZ1016 EZBuck? 2A Simple Buck RegulatorGeneral Description The AOZ1016 is a high efficiency, simple to use, 2A buck regulator. The AOZ1016 works from a 4.5V to 16V input voltage range, and provides up to 2A of continuous output current with an output voltage adjustable down to 0.8V. The AOZ1016 comes in an 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 ● 130m? internal PFET switch for high efficiency: up to 95% ● Internal Schottky diode ● Internal soft start ● Output voltage adjustable to 0.8V ● 2A continuous output current ● Fixed 500kHz PWM operation ● Cycle-by-cycle current limit ● Short-circuit protection ● Under voltage lockout ● Output over voltage protection ● Thermal shutdown ● Small size 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/2A Buck Regulator LX VIN VIN VOUT FB PGND ENFrom μPC COMP AGND C4, C6 22μF Ceramic R2 R3 20kΩ C5 1nF C2 C1 22μF Ceramic L1 4.7μH AOZ1016Rev. 1.7 August 2009 Page 1 of 15 芯天下--/ AOZ1016Rev. 1.7 August 2009 Page 2 of 15 Ordering Information AOS Green Products use reduced levels of Halogens, and are also RoHS compliant. Please visit /web/quality/rohs_compliant.jsp for additional information. Pin Configuration Pin Description Part Number Ambient Temperature Range Package Environmental AOZ1016AI -40°C to +85°C SO-8 RoHS AOZ1016AIL Green Product LX LX EN COMP 1 2 3 4 PGND VIN AGND FB SO-8 (Top View) 8 7 6 5 Pin Number Pin Name Pin Function 1 PGND Power ground. Electrically needs to be connected to AGND. 2 VIN Supply voltage input. When VIN rises above the UVLO threshold the device starts up. 3 AGND Reference connection for controller section. Also used as thermal connection for controller section. Electrically needs to be connected to PGND. 4 FB The FB pin is used to