AOZ53221QI Datasheet | Alpha & Omega Semiconductors

Description The AOZ53221QI is a high efficiency synchronous buck power stage module consisting of two asymmetrical MOSFETs and an integrated driver. It features high accuracy temperature reporting to controller for thermal monitoring. The MOSFETs are individually optimized for operation in the synchronous buck configuration. The High-Side MOSFET is optimized to achieve low capacitance and gate charge for fast switching with low duty cycle operation. The Low-Side MOSFET has ultra-low ON resistance to minimize conduction loss. The pact 5 mm x 5 mm QFN package is optimally chosen and designed to minimize parasitic inductance for minimal EMI signature. The AOZ53221QI uses PWM and/or SMOD# input for accurate control of the power MOSFETs switching activities, is patible with 3 V and 5 V logic and supports Tri-State PWM. A number of features are provided making the AOZ53221QI a highly versatile power module. The bootstrap diode is integrated in the driver. The Low-Side MOSFET can be driven into diode emulation mode to provide asynchronous operation and improve light-load performance. It also features a continuous reporting to monitor signal the internal die temperature. Features - 2.5 V to 18 V power supply range - 4.5 V to 5.5 V driver supply range - 60 A continuous output current - Up to 80 A with 10 ms on pulse - Up to 120 A with 10 µs on pulse - Over Current Protection - 100 A Peak Current limit (+/-10%) - 50 A Valley Current limit - Up to 2 MHz switching operation - 3 V / 5 V PWM and Tri-State input patible - Under-Voltage Lock Out protection - SMOD# pin control for Diode Emulation/CCM operation - Standard QFN5x5-31L package Applications - Notebook puters - Memory and graphic cards - VRMs for motherboards - Point of load DC/DC converter - Video gaming console Typical Application VIN BOOT 2.5 V ~ 18 V PWM Controller THWN DISB# SMOD# Driver Logic and Delay AGND CVCC 5V HS Driver LS Driver PVCC PGND C PV...