AP3429AKTTR-G1

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AP3429AKTTR-G1 is a high power density synchronous DC/DC regulating integrated chip, belonging to the DC/DC Switching Regulators of PMIC - Voltage Regulators. Its main feature is its enabling low voltage start applications and small aperture control, superior current compatibility, and its integration of two 95% efficient synchronous buck controllers and an I2C informatic interface.

This integrated circuit mainly works in two operating modes: fixed-frequency current mode (FFCM) and pulse width modulation (PWM). In FFMM, the internal current mode is enabled and the chip takes the current sensing comparison as the controller parameter to adjust the output voltage while pulsed-width modulation is enabled and the chip takes the average voltage of the current cycle as the control parameter.

The AP3429AKTTR-G1 has a wide range of application fields. It can be used for high-precision, low power consumption and low noise power supply applications, such as consumer electronics, notebook batteries, etc. It also can be used for low-voltage, high power consumption and medium high voltage applications, such as cloud servers, 3G base station, etc. It can even be used in mobile phones, automotive systems and other such applications.

When it comes to the working principle of AP3429AKTTR-G1, the main feature is its integration of two synchronous buck controllers and an I2C informatic interface. The chip takes the current sensing comparison as the controller parameter to adjust the output voltage and takes the average voltage of the current cycle as the control parameter. This enables the device to achieve a wider range of performance, and balance between current limiting, current monitoring and load protection.

What’s more, the chip also features two over-voltage protection functions, one is the load over-voltage protection or over-discharge protection and the other is the input over-voltage protection, which can work together to realize fast and timely protection of the load voltage and keep it within the working range.

In summary, AP3429AKTTR-G1 lies in the DC/DC Switching Regulators of PMIC - Voltage Regulators, and it’s best suited for low power applications with high precision, low noise and low power consumption. It features two synchronous buck controllers and two over-voltage protection functions, which ensure reliable performance and accurate control. Therefore, AP3429AKTTR-G1 can be widely applied in various electric products, such as mobile phones, cloud servers and automotive systems.

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