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Product Detailed Parameters
- Description：25V/65A DRMOS FOR GPU
- Series：-
- Mfr：Alpha & Omega Semiconductor Inc.
- Package：Tape & Reel (TR)
- Output Configuration：Half Bridge
- Applications：Synchronous Buck Converters
- Interface：PWM
- Load Type：Inductive, Capacitive
- Technology：DrMOS
- Rds On (Typ)：-
- Current - Output / Channel：65A
- Current - Peak Output：120A
- Voltage - Supply：4.5V ~ 5.5V
- Voltage - Load：2.5V ~ 25V
- Operating Temperature：-40°C ~ 150°C (TA)
- Features：Bootstrap Circuit, Diode Emulation
- Fault Protection：Over Temperature, Shoot-Through, UVLO
- Mounting Type：Surface Mount
- Package / Case：31-PowerVFQFN Module
- Supplier Device Package：31-QFN (5x5)
- Grade：-
- Qualification：-
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Overview
The AOZ5318NQI is a DrMOS power stage manufactured by Alpha & Omega Semiconductor Inc., designed for synchronous buck converter applications. It integrates a half-bridge driver and MOSFETs in a 31-QFN (5x5) package. The device supports a load voltage range of 2.5V to 25V with a continuous output current of 65A per channel and a peak current capability of 120A. It operates on a 4.5V to 5.5V supply voltage and functions within a temperature range of -40°C to 150°C junction temperature.
Feature Summary
- Integrates half-bridge driver and power MOSFETs into a single DrMOS module for compact design.
- Includes bootstrap circuitry and diode emulation features for efficient gate drive management.
- Provides comprehensive fault protection mechanisms including over-temperature, shoot-through, and under-voltage lockout.
Applications
- Synchronous buck converters
- GPU power delivery systems
Procurement Notes
Verify the specific suffix 'NQI' against the manufacturer's official datasheet to confirm pinout and electrical specifications match your design requirements. Ensure compatibility with the 31-PowerVFQFN footprint during PCB layout. Confirm RoHS3 compliance status if required by your assembly regulations. Cross-reference the part number with authorized distributors to avoid counterfeit components.
Selection Notes
Select this component when high current density is required in a small form factor for graphics processing units. The 65A continuous rating suits demanding GPU loads. Consider the 31-QFN package size for space-constrained designs. Verify that the control interface matches the PWM requirements of the system controller. Evaluate thermal performance based on the specified junction temperature range.
Part Context
This component belongs to the AOZ53xx series of DrMOS devices from Alpha & Omega Semiconductor. These modules are specifically engineered for high-performance computing and graphics applications requiring efficient power conversion. The series offers integrated solutions that simplify design complexity compared to discrete driver and MOSFET combinations.
Replacement Considerations
The AOZ5317NQI is a documented alternative within the same product family, offering similar functionality with a 60A continuous current rating. Verify pin-to-pin compatibility and electrical parameter differences before substitution.
