AOZ1281DI Allicdata Electronics

AOZ1281DI Integrated Circuits (ICs)

Allicdata Part #:

785-1276-2-ND

Manufacturer Part#:

AOZ1281DI

Price: $ 0.00
Product Category:

Integrated Circuits (ICs)

Manufacturer: Alpha & Omega Semiconductor Inc.
Short Description: IC REG BUCK ADJ 1.8A 8DFN
More Detail: Buck Switching Regulator IC Positive Adjustable 0....
DataSheet: AOZ1281DI datasheetAOZ1281DI Datasheet/PDF
Quantity: 54000
Stock 54000Can Ship Immediately
Specifications
Series: EZBuck™
Packaging: Tape & Reel (TR) 
Part Status: Active
Function: Step-Down
Output Configuration: Positive
Topology: Buck
Output Type: Adjustable
Number of Outputs: 1
Voltage - Input (Min): 3V
Voltage - Input (Max): 26V
Voltage - Output (Min/Fixed): 0.8V
Voltage - Output (Max): 22.1V
Current - Output: 1.8A
Frequency - Switching: 1.5MHz
Synchronous Rectifier: No
Operating Temperature: -40°C ~ 85°C (TA)
Mounting Type: Surface Mount
Package / Case: 8-WFDFN Exposed Pad
Supplier Device Package: 8-DFN (2x2)
Description

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AOZ1281DI is a very popular DC-DC switching regulator that is widely used in a variety of modern electronic products such as cell phones, tablets, computers, and many other consumer and industrial applications. This voltage regulator is capable of boosting or bucking a voltage from as low as 0.8V up to 20V with a high-efficiency, low ripple solution. It has the ability to output greater than 1A of current and features low Iq allowing it to run at very low power levels, making it a great choice for applications that require minimal power consumption.

DC-DC switching regulators are widely used in many devices and systems, due to their ability to maintain a low noise output and offer great stability. They are designed to precisely regulate the output voltage to meet the requirements of the end application, while providing a high-efficiency, low-low ripple solution. This makes them an ideal choice for power solutions in various embedded systems.

The AOZ1281DI, which is the most common voltage regulator from AOZ, is equipped with many features to support its high performance level. These features include a high-efficiency buck or boost controller, an integrated low loss power MOSFET, under-voltage lockout, programmable soft start, over-voltage protection, low ripple and noise, low quiescent current, short circuit protection, and thermal shutdown.

The integrated voltage regulator operates with a fixed frequency, PWM, or synchronous rectifying control mode option. Its switching frequency can be changed from 200 kHz up to 1.2 MHz. The AOZ1281DI can regulate either a buck or a boost converter, depending on the application. Furthermore, it has a wide input voltage range from 0.8V up to 20V, and can provide an output voltage of 0.8V up to the maximum of the input voltage, with a maximum output current of 1.2A.

The working principle of AOZ1281DI is based on a switching regulator topology. A switching regulator converts an unregulated DC voltage to a regulated output voltage, without the need of sacrificing a large amount of energy in the process. It uses two switches (in this case, MOSFETs) to control the current flow, and an inductor to store energy. When the switch is off, energy stored in the inductor is being delivered to the output. When the switch is on, current is being transferred from the input to the output. By alternating between states of on and off, the regulator can deliver the exact amount of power to the load, with a great efficiency.

In the case of AOZ1281DI, both a buck and a boost controller are integrated in a single package. The MOSFET used for switching is also integrated. This makes the entire package much smaller and power efficient. Additionally, the feedback loop includes an error amplifier, an output voltage feedback voltage, and a clock generator block.

Furthermore, the AOZ1281DI includes multiple protections, such as over-voltage protection and thermal shutdown, which are essential for this type of application, in order to ensure reliable and safe operation. In addition, the voltage regulator can be used for advanced power distribution in modern systems and for powering microcontrollers.

In conclusion, AOZ1281DI is a popular DC-DC switching regulator used in a variety of applications. It is capable of buck or boost operation, with a wide input voltage range, limited output current, and controlled frequency. Its features, such as under-voltage lockout, programmable soft start, and short circuit protection, makes this device a great choice for many applications which require reliable performance and low power consumption.

The specific data is subject to PDF, and the above content is for reference

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