AOZ53228QI - 2.5-18V DrMOS Power Stage | Alpha & Omega
料号： AOZ53228QI ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $1.4 | $1.40 |
| 10 | $1.4 | $14.00 |
| 100 | $1.4 | $140.00 |
| 500 | $1.4 | $700.00 |
| 1,000 | $1.4 | $1,400.00 |
AOZ53228QI 概述
A DrMOS smart power stage is an integrated power-management device that combines a high-side MOSFET, a low-side synchronous MOSFET, and gate-drive logic. It belongs to the synchronous-buck-converter hierarchy, where a controller commands the switching devices and the module supplies efficient, high-current power conversion for demanding rails. This integration reduces external switching components while placing the driver close to the power devices.
The AOZ53228QI accepts PWM or SMOD# control signals, supports 3 V and 5 V logic, and accepts Tri-State PWM. Its asymmetric MOSFET arrangement supports efficient synchronous operation, while high-accuracy temperature reporting allows the host controller to monitor thermal conditions. Cycle-by-cycle current limitation is identified by the manufacturer as an OCP/NCP-series robustness feature for voltage-regulator applications.
Packaged in a 5 mm × 5 mm QFN, the AOZ53228QI is intended for compact, high-current synchronous buck designs. The verified manufacturer sources describe applications encompassing data-center, telecommunications, networking, and general high-current power-delivery systems. Its integrated driver and MOSFET power stage make it suitable when board area, switching performance, and controller interoperability are priorities.
Designers should route the high-current VIN, PGND, and switch-node paths with very low resistance and inductance, while decoupling the 5 V driver supply near the module. PWM and SMOD# traces should be kept away from high-dV/dt power paths, and thermal performance must be evaluated under worst-case phase current and ambient temperature rather than assumed from package size alone.
This page consolidates the verified manufacturer specifications, an observed 1,000-piece price of $1.40 as of 2026-10-21, source traceability, and practical integration guidance. Unknown electrical limits, protection thresholds, pin assignments, and unreported compliance details are not inferred; they must be confirmed in the manufacturer datasheet before design release.
AOZ53228QI 最大额定值与电气特性
| Product Type | DrMOS smart power stage |
| 拓扑 | Synchronous buck power stage |
| Power-Stage Input Voltage Range | 2.5 V to 18 V |
| Gate-Drive and Control Supply | 5 V |
| Logic Compatibility | 3 V and 5 V |
| Control Inputs | PWM and/or SMOD# |
| PWM Modes | Tri-State PWM supported |
| Integrated Power Devices | Two asymmetrical MOSFETs and an integrated driver |
| Temperature Reporting | High-accuracy temperature reporting to controller |
| Current Limiting | Cycle-by-cycle current limitation |
| 封装 | 5 mm × 5 mm QFN |
| Package Family | QFN surface-mount package |
| 安装类型 | Surface mount |
AOZ53228QI qfn surface-mount package 引脚配置指南
AOZ53228QI（qfn surface-mount package 封装）的引脚配置。 该功率器件具有栅极、漏极和源极端子。对于无极性封装，请参阅制造商数据手册以了解确切的引脚 1 方向和封装尺寸细节。常见应用包括电源设计、电机驱动和负载开关。
暂无详细引脚数据： AOZ53228QI.
请参阅 数据手册 以查看完整引脚配置。
安全工作区
典型应用
AOZ53228QI 适用于 6 应用s: Data-Center Processor Voltage Regulation, Telecommunications 48 V-Rail Conversion, Networking Equipment Power Supply, High-Current Point-of-Load Conversion, Multiphase Voltage-Regulator Design, Industrial Compact DC-DC Stage.
Data-Center Processor Voltage Regulation
The AOZ53228QI fits compact high-current synchronous-buck stages used around data-center processors because its 2.5 V to 18 V power-stage range, integrated asymmetrical MOSFETs, integrated driver, and temperature reporting reduce external power-stage complexity. A host multiphase controller can use PWM and/or SMOD# control, including Tri-State PWM, to command each module. Cycle-by-cycle current limitation adds a protection mechanism identified by the manufacturer for severe voltage-regulator operation. The 5 mm × 5 mm QFN helps reduce board area, but phase-current capability, switching frequency, and thermal limits must be confirmed from the datasheet before deployment.
推荐
Telecommunications 48 V-Rail Conversion
The AOZ53228QI can support intermediate low-voltage conversion stages in telecommunications equipment after an upstream converter reduces the system rail to the module's 2.5 V to 18 V power-stage range. Its integrated driver and asymmetrical MOSFETs simplify a compact synchronous-buck implementation, while the separate 5 V supply feeds gate-drive and control circuitry. PWM or SMOD# control supports controller-driven multiphave architectures. Designers must verify available input power, phase-current sharing, protection thresholds, conversion efficiency, and thermal performance under the actual telecom load profile before selecting it.
推荐
Networking Equipment Power Supply
AOZ53228QI is suitable for evaluating efficient, compact point-of-load or intermediate rails in networking equipment where switching conversion is needed within a 2.5 V to 18 V power-stage input range. The integrated high-side and low-side MOSFETs, driver, 3 V and 5 V logic compatibility, and Tri-State PWM support can reduce the number of external power components. Temperature reporting enables the controller to monitor operating conditions, while cycle-by-cycle current limitation supports robustness. Qualification still requires confirmation of output-current rating, switching loss, fault response, and PCB thermal performance.
推荐
High-Current Point-of-Load Conversion
The AOZ53228QI can be evaluated for a compact point-of-load synchronous-buck stage when the required input lies between 2.5 V and 18 V. Its integrated asymmetrical MOSFET pair and gate driver reduce routing area and help place switching control close to the power devices. PWM and/or SMOD# interfaces give the host controller control options, while the separate 5 V rail supports gate drive and internal functions. The main trade-off is integration: designers must account for the module's fixed control interface, package thermal limits, and current capability rather than sizing the high- and low-side MOSFETs independently.
推荐
Multiphase Voltage-Regulator Design
The AOZ53228QI targets high-current synchronous-buck applications where multiple power stages can be coordinated by a multiphase controller. PWM or SMOD# inputs permit accurate control of the integrated MOSFET switching activities, and Tri-State PWM support broadens controller-interface options. The module also reports temperature accurately and provides cycle-by-cycle current limitation as identified in Alpha & Omega Semiconductor's DrMOS material. A robust design must verify phase current balance, short-circuit behavior, current-sense method, startup sequencing, control-loop compensation, and shared thermal constraints using the complete datasheet.
推荐
Industrial Compact DC-DC Stage
AOZ53228QI may fit industrial embedded systems that need a compact synchronous-buck stage within its 2.5 V to 18 V power-stage range. Integration of two asymmetrical MOSFETs and a driver reduces the component count compared with a discrete switch stage, while 3 V and 5 V logic compatibility helps interface with suitable controller hardware. Temperature reporting supports monitoring in unattended systems. Before adoption, verify industrial temperature limits, isolation requirements, electromagnetic-emissions behavior, environmental qualification, and long-term availability because those details are not established by the supplied excerpts.
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推荐产品汇总
工程参考数据： AOZ53228QI ——对比、设计指导和合规信息。
选型指南
设计说明
Place the AOZ53228QI close to the controller and arrange VIN, switch, and PGND paths with short, wide conductors to minimize parasitic inductance and resistance. High-current copper planes should transition into the module with minimal loops, while the 5 V gate-drive and control supply should be decoupled close to its pins. Keep sensitive PWM and SMOD# traces away from the switch node to reduce capacitive crosstalk and common-mode coupling.
Evaluate thermal performance from actual conduction and switching loss rather than package size alone. Estimated: P_loss equals I_rms² multiplied by the effective conduction resistance plus P_switching at the actual operating point; use only datasheet limits and measured or characterized values. Estimated: the temperature rise equals P_loss multiplied by the assembly thermal resistance. Confirm these figures against the official AOZ53228QI electrical and thermal tables before setting maximum phase current.
Do not treat the 2.5 V to 18 V power-stage input and the separate 5 V control supply as interchangeable rails. Verify PWM and SMOD# polarity, Tri-State behavior, fault signaling, startup sequencing, and current-sense topology from the official datasheet. A similarly sized QFN DrMOS is not automatically interchangeable because exposed-pad assignments, pin names, voltage thresholds, current limits, and protection timing can differ.
合规信息
The supplied excerpts do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals compliance. Obtain current documentation from Alpha & Omega Semiconductor before qualification.
