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AOZ1081AI Datasheet(PDF) 3 Page - Alpha & Omega Semiconductors |
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AOZ1081AI Datasheet(HTML) 3 Page - Alpha & Omega Semiconductors |
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3 / 16 page  AOZ1081 Rev. 1.1 April 2009 www.aosmd.com Page 3 of 16 Pin Configuration Pin Description 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 LED Current Feedback Input. The FB voltage is regulated at 250mV in normal operation. The FB sense resistor sets the nominal LED current 5 COMP External loop compensation pin. 6 EN The enable pin is active high. Connect EN pin to VIN if not used. Do not leave the EN pin floating. 7,8 LX PWM output connection to inductor. Thermal connection for output stage. |
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