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Product Detailed Parameters
- Description：30V 35A QF3.5X4.5 DRMOS POWER ST
- 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：35A
- Current - Peak Output：80A
- Voltage - Supply：4.5V ~ 5.5V
- Voltage - Load：4.5V ~ 25V
- Operating Temperature：-40°C ~ 125°C (TJ)
- Features：Bootstrap Circuit, Diode Emulation
- Fault Protection：Shoot-Through, UVLO
- Mounting Type：Surface Mount
- Package / Case：22-PowerVFQFN Module
- Supplier Device Package：22-QFN (4.5x3.5)
- Grade：-
- Qualification：-
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Overview
The AOZ5508QI is a DrMOS power module from Alpha & Omega Semiconductor, integrating a half-bridge driver and synchronous MOSFETs. It supports input voltages up to 30V with a continuous output current of 35A per channel. The device features a 22-QFN (4.5x3.5mm) package, operates within a junction temperature range of -40°C to 150°C, and includes protection against under-voltage lockout and over-current conditions.
Feature Summary
- Integrates high-side and low-side drivers with N-channel power MOSFETs in a single compact module
- Supports synchronous buck converter applications with integrated bootstrap circuitry
- Includes built-in fault protection mechanisms such as under-voltage lockout and over-current protection
Applications
- Synchronous step-down voltage regulation
- Point-of-load power delivery systems
- Consumer electronics power management
Procurement Notes
Verify the specific suffix and revision level against the manufacturer's latest datasheet to ensure compatibility with design requirements. Confirm RoHS compliance status and moisture sensitivity level prior to ordering. Check for any recent product change notices or obsolescence alerts directly from Alpha & Omega Semiconductor to avoid supply chain disruptions during production.
Selection Notes
Select this component for designs requiring high current density in a small footprint. Ensure the PCB thermal design can handle the power dissipation associated with 35A operation. Verify that the gate drive voltage levels match the controller IC outputs. Consider the 30V maximum rating when designing for transient voltage spikes on the input rail.
Part Context
This part belongs to the AOZ55xx series of DrMOS devices, which are designed for high-efficiency power conversion. Alpha & Omega Semiconductor specializes in power management solutions, and this module represents their integration of driver logic with power stages to simplify board layout and improve reliability in compact electronic systems.
Replacement Considerations
Check for direct pin-compatible alternatives within the same AOZ55xx family. Verify if higher current variants like the AOZ5518 are suitable if headroom is needed. Cross-reference with other manufacturers' DrMOS offerings only if electrical parameters and package dimensions are identical.
