AOS AOZ5332QI

The AOZ5332QI 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. The AOZ5332QI uses a PWM input for accurate control of the power MOSFETs switching activities, is compatible with 3V and 5V (CMOS) logic and supports Tri-State PWM.

• 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
• Uses a PWM input for accurate control of the power MOSFETs switching activities
• Compatible with 3V and 5V (CMOS) logic and supports Tri-State PWM
• 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
• The pin-out is also optimized for low parasitics, keeping their effects to a minimum
• 2.5V to 25V power supply range
• 4.5V to 5.5V driver supply range
• 50A continuous output current - Up to 80A with 10ms ON pulse - Up to 120A with 10us ON pulse
• Up to 2MHz switching operation
• 3V / 5V PWM / Tri-State input compatible
• Under-Voltage Lockout protection
• SMOD# control for Diode Emulation / CCM operation
• Low Profile 5x5 QFN-31L package

• Memory and graphic cards
• VRMs for motherboards
• Point of load DC/DC converters
• Video gaming console