PT4402A

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DC DC converters are popularly used in a variety of applications as a power supply, such as solar energy and battery power. The PT4402A is a high efficiency, high frequency DC DC converter module typically used in battery powered applications. It can be used to convert a 5V input voltage to a range of output voltages from 4.2V to 5.5V, which is suitable for low voltage systems

The PT4402A is a high-end, cost-effective DC DC power solution for portable and embedded systems. It adopts an advanced topology to reduce power dissipation and improve efficiency. The adjustable output voltage is adjustable within a wide 4.2V to 5.5V range, and the adjustable output current is up to 3A, while the input voltage range is from 4.5V to 5.5V. In addition, the input/output isolation voltage is ±20V, which provides sufficient insulation protection for sensitive circuits.

The PT4402A is based on an adaptive PFM voltage operation mode. With its low output voltage ripple, it can operate the system stably and efficiently for a long time without causing damage to the system.

The working principle of the PT4402A is that the pulse width modulation (PWM) control circuit produces a driving signal, which is then fed to the primary side of the switching transformer. The output of this transformer is rectified and filtered to yield a regulated DC voltage. The output voltage is determined by the on-off ratio of the driving signal, which is controlled by the feedback voltage.

The main features of the PT4402A module are small size, high efficiency, and low active input power consumption. It utilizes advanced high efficiency power conversion technologies, along with an output power control algorithm and frequency control algorithm, to provide constant output power with low noise and low ripple. The PT4402A also features over-temperature, over-voltage, over-current, and short-circuit protection, as well as soft-start and current limit functions, all of which ensure longer life and reliability for the system.

The PT4402A is ideal for applications such as energy harvesting, digital signage, sensors, home monitoring and control, medical equipment, portable devices, automotive systems, battery powered systems, and so on. It is also compatible with many power and voltage control methods, such as enabling single SUP port, dual SUP port, SYNC port, EN/PWN port, and SOT port.

In summary, the PT4402A is a high-end, cost-effective DC DC converter module that provides great efficiency and power conversion performance. Its adjustable output voltage and output current can meet the requirements of many different applications. It has good input/output isolation, and its advanced feature set ensures reliable operation and system longevity. As such, it is an attractive option for a wide range of applications.

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