AOZ5276QI-03 Datasheet | Alpha & Omega Semiconductors

Description The AOZ5276QI-03 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 AOZ5276QI-03 provides an output voltage signal (IMON), which represents the real-time module current with a gain of 5m 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 AOZ5276QI-03 also includes an accurate module temperature monitor (TMON). TMON is a voltage sourced signal with a gain of 8m V/°C. The MOSFETs are individually optimized for operation in the synchronous buck configuration. The High-Side (HS) MOSFET is optimized to achieve low capacitance and gate charge for fast switching with low duty cycle operation. The Low-Side (LS) MOSFET has ultra-low ON resistance to minimize conduction loss. The standard 5mm x 6mm QFN package is optimally designed to minimize parasitic inductance for minimal EMI signature. Features - 3V to 20V power supply range - 30V HS MOSFET provides better system ruggedness - 110A continuous output current - Up to 115A for 1ms on pulse - Up to 150A for 10µs on pulse - Optimized for switching frequency up to 1MHz - Integrated current monitor (5m V/A) with 5% accuracy over temperature - Integrated temperature monitor (8m V/°C) with 2% accuracy - Fault Indicator - Under-Voltage Lock Out (UVLO) on VCC - Under-Voltage Lock Out (UVLO) on VIN - High-Side MOSFET Over-Current and Short-Circuit Protection - Over Temperature Protection (OTP) - Standard QFN5x6-39L package Applications - Server systems - High end CPU/GPU power stage - munications Infrastructure Typical Application Circuit TMON/FLT PWM Controller IMON REFIN AGND OCSET Driver Logic and Delay HS Driver LS Driver VIN BOOT CBOOT PHASE...