AOZ52183QI Datasheet | Alpha & Omega Semiconductors

Description The AOZ52183QI is a general-purpose Smart Power Stage (SPS) consisting of two asymmetrical MOSFETs and an integrated driver for high current, high frequency DC-DC converters. The AOZ52183QI provides an output current signal (IMON), which reports the real-time module current with a gain of 5 m V/A. The IMON signal can be directly used to replace inductor DCR sensing or resistor sensing in multiphase voltage regulator systems without the need for temperature pensation. The AOZ52183QI also includes an accurate module temperature monitor (TMON). TMON is a voltage sourced signal with a gain of 8 m V/o C. 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 standard 5 mm x 4 mm QFN package is optimally designed to minimize parasitic inductance for minimal EMI signature. Features - 3 V to 25 V power supply range - 45 A continuous output current - Up to 65 A for 20 ms instantaneous current @ 14 V VIN - Up to 60 A for 20 ms instantaneous current @ 22 V VIN - Up to 80 A for 10 us instantaneous current - Optimized for switching frequency up to 1.5 MHz - Integrated current monitor (5 m V/A) with typical 3% accuracy over temperature - Integrated temperature monitor (8 m V/ o C) with 2% accuracy - Fault Indicator - Under-Voltage Lock Out (UVLO) on VCC - High Side MOSFET Over-Current Protection - Zero Current Detect Function - Over Temperature Protection - Standard QFN5x4-24L package Applications - Server systems - High end CPU/GPU Power Stage - munications Infrastructure Typical Application FCCM PWM Controller PWM TMON Driver Logic HS Driver and IMON Delay REFIN AGND LS Driver VIN BOOT CBOOT PHASE VSWH PVCC PGND C VCC...