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AOZ1281DI
1800kHz Maximum Switching Frequency PDSO8
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製造商零件號 # : AOZ1281DI
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包裝/封裝: WFDFN-8
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產品分類 : Voltage Regulators - DC DC Switching Regulators
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AOZ1281DI 數據表
價格 (USD)
| 數量 | 單價 | 總價 |
|---|---|---|
| 1 | $0.425 | $0.42 |
| 200 | $0.165 | $33.00 |
| 500 | $0.159 | $79.50 |
| 1000 | $0.156 | $156.00 |
這些價格會受到市場波動的影響，需要提交報價才能取得最新價格。
詳細說明
The AOZ1281DI is a versatile and reliable high voltage synchronous buck converter that boasts an impressive 95% peak efficiency, making it an ideal choice for a variety of applications. With an input voltage range of 4.5V to 18V and a continuous output current of up to 8A, this converter offers exceptional performance in a compact package. The synchronous rectification topology helps to minimize power loss, ensuring optimal energy efficiency in operation
主要特徵
- 4.5V to 16V operating input voltage range
- 32 mΩinternal PFET switch for high efficiency: up to 95%
- Internal soft start
- Output voltage adjustable to 0.8V
- 5A continuous output current
- Fixed 500kHz PWM operation
- Cycle-by-cycle current limit
- Short-circuit protection
- Thermal shutdown
- Small size SO-8 and DFN-8 packages
規格
以下是所選零件的基本參數，涉及零件的特性及其所屬類別。
| ECCN (US) | EAR99 | Part Status ! | Active |
| HTS | 8542.39.00.01 | Type | Step Down |
| Output Type | Adjustable | Switching Frequency (kHz) | 1500 |
| Switching Regulator | Yes | Number of Outputs | 1 |
| Output Voltage (V) | 0.8 to 22.1 | Maximum Output Current (A) | 1.8 |
| Minimum Input Voltage (V) | 3 | Maximum Input Voltage (V) | 26 |
| Operating Supply Voltage (V) | 3 to 26 | Typical Switch Current (A) | 2.6 |
| Typical Quiescent Current (uA) | 1000 | Line Regulation ! | 0.03%/V(Typ) |
| Load Regulation ! | 0.5%(Typ) | Efficiency (%) | 95 |
| Maximum ESD Protection Voltage (kV) | 2@HBM | Minimum Operating Temperature (°C) | -40 |
| Maximum Operating Temperature (°C) | 85 | Packaging ! | Tape and Reel |
| Mounting | Surface Mount | Package Height | 0.73 |
| Package Width | 2 | Package Length | 2 |
| PCB changed | 8 | Standard Package Name | DFN |
| Supplier Package | DFN EP | Pin Count ! | 8 |
| Lead Shape | No Lead |
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等，這對於作為器件特定應用的整體指南大有裨益。
常見問題解答
What is AOZ1281DI?
The AOZ1281DI is a high-efficiency, synchronous step-down DC-DC converter designed by Alpha & Omega Semiconductor. It is ideal for applications requiring efficient power conversion, such as portable devices, consumer electronics, and industrial equipment.
How Does AOZ1281DI Work?
The AOZ1281DI works by efficiently converting a higher input voltage to a lower output voltage using synchronous rectification. It utilizes a pulse-width modulation (PWM) control scheme to regulate the output voltage and achieve high efficiency. The converter features internal power MOSFETs, reducing the need for external components and simplifying the design.
How Many Pins does AOZ1281DI have and What are the Functions of the Pinout Configuration?
The AOZ1281DI is housed in a 23-pin QFN (Quad Flat No-leads) package. The pinout configuration includes:
- VIN: Input voltage supply pin.
- SW: Switching node for the internal power MOSFETs.
- AGND, PGND: Analog and power ground pins, respectively.
- FB: Feedback input pin for output voltage regulation.
- EN: Enable pin for turning the converter on/off.
- PGOOD: Power good indicator output pin.
- SS/TR/UVLO: Soft start, tracking, and undervoltage lockout pin.
- COMP, VOUT: Compensation and output voltage setting pins.
- BOOT, LX: Bootstrap and low-side switch driver pins.
What are the Pros and Cons of AOZ1281DI?
Pros:
- High Efficiency: Provides efficient power conversion, reducing power dissipation and extending battery life.
- Integration: Internal power MOSFETs and control circuitry reduce the need for external components and simplify the design.
- Compact Package: Housed in a space-efficient QFN package, suitable for compact layouts.
- Wide Input Voltage Range: Supports a wide input voltage range for versatile applications.
- Protection Features: Includes protection features such as overcurrent and thermal shutdown for robust operation.
Cons:
- Complexity: Requires careful consideration of layout and thermal management for optimal performance.
- External Components: May require additional external components for specific applications or to meet certain performance requirements.
- Thermal Considerations: High-efficiency converters may require attention to thermal design for reliable operation.
Are There Any Equivalents/Alternatives to AOZ1281DI for Recommendation?
- The TPS62130A from Texas Instruments is a similar high-efficiency, synchronous step-down converter.
- Alternatives to the AOZ1281DI include the MP2315 from Monolithic Power Systems and the LT8610 from Analog Devices.
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