AOZ5038QI Datasheet | Alpha & Omega Semiconductors

Description The AOZ5038QI 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 pact 5mm x 5mm QFN package is optimally chosen and designed to minimize parasitic inductance for minimal EMI signature. The AOZ5038QI is intended for use with TTL and Tristate patibility by using both the PWM and/or FCCM inputs for accurate control of the power MOSFETs. A number of features are provided making the AOZ5038QI 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 when required. The pinout is optimized for low inductance routing of the converter, keeping the parasitics and their effects to a minimum. NOT REMENDED FOR NEW DESIGNS Features - 4.5V to 25V power supply range - 4.5V to 5.5V driver supply range - 50A continuous output current - Up to 60A peak output current - Integrated booststrap schottky diode - Up to 2MHz switching operation - Tri-state PWM input patible - Under-Voltage Lock Out protection - Single FCCM pin control for Shutdown / Diode Emulation / CCM operation - Standard 5mm x 5mm QFN-31L package Applications - Servers - Notebook puters - VRMs for motherboards - Point of load DC/DC converters - Memory and graphic cards - Video gaming console Typical Application Circuit VIN BOOT 4.5V - 25V Controller FCCM PWM PGND Drive Logic and Delay CBOOT CVIN VSWH GL L VOUT COUT PGND +5V VCC CVCC PVCC...