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Product Detailed Parameters
- Description：25V/65A 5X5 DRMOS
- Series：-
- Mfr：Alpha & Omega Semiconductor Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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：4.5V ~ 25V
- Operating Temperature：-40°C ~ 150°C (TJ)
- Features：Bootstrap Circuit, Diode Emulation
- Fault Protection：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 AOZ5018QI is a high-efficiency synchronous buck power stage module from Alpha & Omega Semiconductor. It integrates two asymmetrical MOSFETs and an internal driver within a standard 5mm x 5mm QFN-31L package. The device supports a continuous output current of 65A, with peak capabilities up to 120A for short pulses. It operates with a power supply range of 4.5V to 25V and a driver supply of 4.5V to 5.5V. Switching frequencies reach up to 2MHz, and it accepts 5V PWM inputs compatible with CMOS logic.
Feature Summary
- Integrates optimized high-side and low-side MOSFETs with an internal driver for compact design
- Supports diode emulation mode via FCCC control to enhance light-load efficiency
- Features integrated bootstrap diode and optimized pin-out to minimize parasitic effects
Applications
- Memory and graphic cards
- VRMs for motherboards
- Point of load DC/DC converters
- Video gaming consoles
Procurement Notes
Verify the specific suffix 'QI' against official Alpha & Omega documentation to confirm automotive or industrial grade classification. Confirm RoHS compliance status and REACH registration details prior to integration. Ensure the ordering part number matches the exact package variant required for your PCB footprint. Cross-reference datasheet revisions to validate parameter consistency.
Selection Notes
Select this component for applications requiring high current density in a small footprint. The integrated driver simplifies layout by reducing external gate drive requirements. Consider the 2MHz switching capability for smaller passive components. Verify thermal management needs due to high current ratings. Ensure input voltage ranges align with system power rails.
Part Context
This device belongs to the DrMOS family of power modules designed for high-performance computing and graphics applications. It replaces discrete MOSFET and driver solutions to improve power density. The module architecture focuses on minimizing switching losses and conduction losses through asymmetric MOSFET optimization.
FAQ
What is the maximum switching frequency supported?
The AOZ5018QI supports switching operations of up to 2MHz.
Does the module include a bootstrap diode?
Yes, the bootstrap diode is integrated directly into the driver circuitry.
