AOZ1284PI

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AOZ1284PI

IC REG BUCK ADJUSTABLE 4A 8SO

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仕様

Package Tape & Reel (TR),Cut Tape (CT)
Series EZBuck™
ProductStatus Active
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Adjustable
NumberofOutputs 1
Voltage-Input(Min) 3V
Voltage-Input(Max) 36V
Voltage-Output(Min/Fixed) 0.8V
Voltage-Output(Max) 30.6V
Current-Output 4A
Frequency-Switching 200kHz ~ 1MHz
SynchronousRectifier No
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width) Exposed Pad

概要

Description

The AOZ1284PI is a high-efficiency, synchronous step-down DC-DC converter designed by Alpha & Omega Semiconductor. It offers a compact and cost-effective solution for converting a higher voltage input to a lower regulated output voltage. This device is typically used in applications such as notebooks, set-top boxes, LCD TVs, and other consumer electronics where efficient power management is crucial.
Key features of the AOZ1284PI include a wide input voltage range, typically from 4.5V to 18V, and an adjustable output voltage range. It provides up to 4A output current, making it suitable for moderate power applications. The device integrates high-side and low-side MOSFETs, which help in reducing the overall component count and improving efficiency.
The AOZ1284PI also includes protection features such as over-current protection (OCP), over-voltage protection (OVP), and thermal shutdown, ensuring reliable operation under various conditions. Its compact QFN package helps in reducing board space, making it ideal for applications where space is a premium. Overall, the AOZ1284PI is valued for its efficiency, reliability, and ease of use in power management solutions.

Features

The AOZ1284PI is a high-efficiency synchronous buck regulator. Key features include:
1. Input Voltage Range: Operates from 4.5V to 30V, making it versatile for various applications.
2. Output Voltage: Adjustable output voltage ranging from 0.8V to 24V.
3. Output Current: Capable of delivering up to 4A continuous output current.
4. Efficiency: High efficiency, typically over 90%, reducing power loss.
5. Switching Frequency: Operates at a fixed 500kHz switching frequency for ease of filtering and noise reduction.
6. Protection Features: Includes over-current protection, thermal shutdown, and under-voltage lockout to ensure reliable operation.
7. Package: Available in a compact DFN-8L package, ideal for space-constrained applications.
8. Control Method: Utilizes a current-mode control scheme for fast transient response and stability.
9. Soft Start: Integrates a soft-start feature to prevent inrush current at startup.
These features make the AOZ1284PI suitable for use in applications such as telecommunications, networking, and consumer electronics where efficient power conversion is critical.

Package

The AOZ1284PI is typically available in a SOT-23 package type, which is a small, surface-mount package commonly used for electronic components.

Pinout

The AOZ1284PI is a buck converter IC from Alpha & Omega Semiconductor. It typically comes in a 3 mm x 3 mm DFN-8 package, which means it has 8 pins. Here is a brief description of its pin functions:
1. VIN: Input supply voltage.
2. SW: Switch node connected to the internal MOSFETs.
3. GND: Ground connection.
4. FB: Feedback pin for setting the output voltage via an external resistor divider.
5. COMP: Compensation pin used for stability and dynamic response.
6. EN: Enable pin to turn the regulator on or off.
7. AGND: Analog ground for more precise control circuitry.
8. BST: Bootstrap pin for driving the high-side MOSFET.
These pins facilitate its function as a high-efficiency, synchronous step-down DC-DC converter, suitable for powering a wide range of applications from a single-input supply.

Manufacturer

The AOZ1284PI is manufactured by Alpha and Omega Semiconductor (AOS). AOS is a company that designs, develops, and supplies a broad range of power semiconductors. Their products are used in applications such as power management for computing, consumer electronics, communication, and industrial markets. AOS focuses on providing high-performance solutions that enable greater energy efficiency and power density.

Application

The AOZ1284PI is a power management IC, specifically a synchronous buck regulator. It is commonly used in applications such as consumer electronics, computing systems, networking equipment, and industrial devices. Its role is to efficiently convert higher battery voltages to lower voltages required by digital ICs and microprocessors, making it suitable for use in DC-DC power conversion tasks. The IC is valued for its high efficiency, compact size, and ability to support high-frequency operation, making it ideal for space-constrained or energy-efficient designs.

Equivalent

The AOZ1284PI is a high-efficiency synchronous buck regulator. Equivalent products might include:
1. MP1584 by Monolithic Power Systems
2. LM2596 by Texas Instruments
3. ADP2300 by Analog Devices
4. LTC3624 by Analog Devices
5. RT8249 by Richtek
These alternatives have similar functionalities, but exact equivalence should be verified in terms of specifications like input voltage range, output current, and efficiency for your specific application.

出荷

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出荷料参照(DHL/FedEx):

DHL の: 配送費は25ドル〜45ドル(0.5kg)の範囲で、推定配送時間は2〜5営業日です。

フェデックス: 配送費は25ドル〜40ドル(0.5kg)の範囲で、推定配送時間は3〜7営業日。

UPS の: 配送費は25ドル〜45ドル(0.5kg)の範囲で、推定配送時間は3〜7営業日。

TNT社: 配送費は25ドル〜65ドル(0.5kg)の範囲で、推定配送時間は3〜7営業日。

EMS: 配送料金は30〜50ドル(0.5kg)の範囲で、推定配送時間は7〜15営業日です。

登録航空郵便: 配送費は2〜4ドル(0.1kg)で、推定配送時間は5〜20営業日です。

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