AOZ5507QI Datasheet | Alpha & Omega Semiconductors

Description AOZ5507QI is a high efficiency synchronous buck power stage module consisting of two asymmetrical MOSFETs and an integrated driver. 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. AOZ5507QI uses a PWM input for accurate control of the power MOSFETs switching activities, is patible with 5V (CMOS) logic and supports Tri-State PWM. A number of features are provided making the AOZ5507QI a highly versatile power module. The bootstrap switch 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. The pin-out is also optimized for low parasitics, keeping their effects to a minimum. Features - 4.5V to 25V power supply range - 4.5V to 5.5V driver supply range - Up to 65A with 20ms instantaneous current @ 14V VIN - Up to 60A with 20ms instantaneous current @ 22V VIN - Up to 50A with 10ms on pulse - Up to 80A with 10us on pulse - Up to 2MHz switching operation - 5V PWM / Tri-State input patible - Under-voltage Lockout protection - FCCM control for Diode Emulation / CCM operation - Low profile 3.5mm x 4.5mm QFN-22L package Applications - Memory and graphics cards - VRMs for motherboards - Point of load DC/DC converters - Video gaming consoles Typical Application Circuit FCCM PWM Controller Driver Logic and Delay CVCC 5V VIN BOOT HS Driver CBOOT PHASE VSWH LS Driver PVCC PGND CPVCC 4.5V ~ 25V CIN...