AP3433FNTR-G1

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The AP3433FNTR-G1 is a PMIC – Voltage Regulators – DC DC Switching Regulators. It is a high efficiency and highly integrated DC/DC step-down switching regulator for providing stable and reliable power supply to a various of consumer and portable electronics like DSC/DVC, chargers, TV, STB and other networking equipments. This device operates from an input voltage range of 4.5V to 28V, providing a maximum output current of 6A without additional heat sinking.

The AP3433FNTR-G1 consists of an input voltage regulator, a built-in PWM controller, an integrated power switch, and built-in over current, over temperature protection. With it, you can set the output voltage of the regulator and enable/disable current limiting protection. This device is available in different packages, with varying switch current and output voltage values. The switching frequencies are adjustable and can be set in between 400kHz and 1.2MHz.

The AP3433FNTR-G1\'s comprehensive protection features include over-load, over-current, short-circuit and over-temperature. In these cases it provides electronic over-load protection with a programmable current limit and also provides fold-back current limit protection. This device has an ultra-low standby current which makes it suitable for low-power applications.

When supplying devices, the AP3433FNTR-G1 adopts an adjustable mode of operation by utilizing the Output Voltage (VOUT) Pin, the Soft-start (SS) Pin and the EN pin to form an adjustable system. The output voltage of the regulator can be precisely and accurately adjusted by these three points. The startup can also be adjusted. Once the steady-state adjustable system is realized, the AP3433FNTR-G1 can automatically regulate the output voltage and provide a stable power supply.

The AP3433FNTR-G1 is also equipped with a built-in power switching component, which can work stably under temperatures from -40℃ to 125℃. Additionally, its output ripple is low, and its output noise is within 60mVpp (at 1MHz) which makes this regulator well-suited for applications that need very low noise. The device features full protections and works better in high-noise environments. Additionally, it has a high efficiency, low power consumption and complete short-circuit protection. In summary, the AP3433FNTR-G1 is an excellent device designed for DC/DC step-down switching regulator applications.

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