AOZ52371QI Datasheet | Alpha & Omega Semiconductors

Description The AOZ52371QI is a general-purpose Smart Power Stage (SPS) for puting notebook CPU power, consisting of two asymmetrical MOSFETs and an integrated driver for high current, high frequency, and DC-DC converter. The AOZ52371QI provides an output current signal (IMON). The IMON signal can be directly used to replace inductor DCR sensing or resistor sensing in the multiphase voltage regulator systems without the need for temperature pensation. The AOZ52371QI also includes an accurate module thermal monitor (TMON). TMON is a voltage sourced PTAT signal with a gain of 8 m V/°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 × 5 mm QFN package is optimally designed to minimize parasitic inductance for minimal EMI signature. Features - 4.5 V to 25 V power supply range - 60 A continuous output current - Up to 80 A for 10 ms on pulse - Up to 120 A for 10 µs on pulse - Optimized for switching frequency up to 1 MHz - Integrated current monitor output signal - Integrated temperature monitor output signal - Fault Indicator - VCC33 and PVCC5 Under-Voltage Lockout (UVLO) - Zero Current Detect Function - Over Temperature Protection - Standard 5 mm x 5 mm QFN-30L package Applications - Notebook puter - Graphic card - munications Infrastructure Green Product Typical Application 3.3 V VCC33 PWM Controller SDIFD SDIFCLK PWM TMON IMON Driver Logic and Delay HS Driver VIN BOOT CBOOT PHASE VSWH CIN L1 4.5 V~ 25 V VOUT REFIN SGND LS...