AP1501-T5G-U

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Analog Devices\' PMIC - Voltage Regulators - DC DC Switching Regulators product line features the AP1501-T5G-U. This versatile switching regulator provides a wide range of features such as high efficiency, fast transient response, output OVP and low shutdown current.

Application field

The AP1501-T5G-U is ideal for use in various DC-DC conversion applications. From industrial to automotive, it can be used for post DC-DC conversion to supply power to components requiring a steady supply of current. It is also a suitable choice for battery-powered applications and automotive applications due to its low quiescent current and high efficiency.
Additionally, the AP1501-T5G-U is well suited for LED lighting applications. With its fast transient response, output OVP and low shutdown current, it can be used to provide a constant current supply to LED drivers. The AP1501-T5G-U is also used in audio applications, where its low noise operation and high stability make it ideal for powering audio amplifiers and speakers.

Working principle

The AP1501-T5G-U operates according to a transition-mode PWM (Pulse Width Modulation) co-conversion technique. This means that when the load is low, the AP1501-T5G-U acts as a voltage regulator, providing a constant output voltage. When the load is increased, the device transitions to a PWM mode and provides a constant current to the load. This PWM control scheme is advantageous as it is highly efficient and achieves very low output voltage ripple.
The PWM control provided by the AP1501-T5G-U is digitally programmable and can be adjusted for a variety of applications. The device’s input voltage range is 0.9V to 6V and the output voltage range is adjustable from 0.8V to VIN. It is capable of delivering up to 3A of current and achieving a high efficiency of up to 97%.

The AP1501-T5G-U has a variety of protection features that allow it to meet the most demanding requirements. It features an adjustable over-voltage protection circuit which can protect the output from dangerous over-voltage conditions. It also has fast over-current and thermal shutdown protection, as well as reverse voltage protection to ensure the safety of the system.

In summary, the AP1501-T5G-U is a versatile switching regulator ideal for a variety of DC-DC conversion applications. Its transition-mode PWM co-conversion technique allows it to provide high efficiency and very low output voltage ripple. Additionally, its protection features ensure the safety of the system and its low quiescent current and high efficiency make it suitable for battery-powered applications.

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