Z1051PI

AOZ1051PI EZBuck™ 3 A Synchronous Buck Regulator General Description The AOZ1051PI is a high efficiency, easy to use, 3 A synchronous buck regulator. The AOZ1051PI works from 4.5 V to 18 V input voltage range, and provides up to 3 A of continuous output current with an output voltage adjustable down to 0.8 V. The AOZ1051PI comes in an exposed pad SO-8 package and is rated over a -40 °C to +85 °C operating ambient temperature range. Features z 4.5 V to 18 V operating input voltage range z Synchronous Buck: 70 mΩ internal high-side switch and 40 mΩ internal low-side switch (at 12 V) z Up to 95 % efficiency z External soft start z Output voltage adjustable to 0.8 V z 3 A continuous output current z 500 kHz PWM operation z Cycle-by-cycle current limit z Pre-bias start-up z Short-circuit protection z Thermal shutdown z Exposed pad SO-8 package Applications z Point of load DC/DC converters z LCD TV z Set top boxes z DVD and Blu-ray players/recorders z Cable modems Typical Application VIN C1 10µF CSS VIN EN SS L1 4.7µH AOZ1051PI LX R1 VOUT COMP RC CC FB AGND PGND R2 C2, C3 22µF Figure 1. 3.3 V 3 A Synchronous Buck Regulator, Fs = 500 kHz Rev. 1.0 June 2011 www.aosmd.com Page 1 of 14 Free Datasheet http://www.datasheet4u.com/ AOZ1051PI Ordering Information Part Number AOZ1051PI Ambient Temperature Range -40 °C to +85 °C Package EPAD SO-8 Environmental Green Product AOS Green Products use reduced levels of Halogens, and are also RoHS compliant. Please visit www.a...