PH75F48-12

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DC-DC converters are widely used in modern electronic systems, supplying various electronic devices with regulated DC power. PH75F48-12 is a step-up DC-DC converter, which converts a 3.3V input voltage to an adjustable 5V to 48V output voltage. It is an ideal solution for applications requiring a regulated and high efficiency output in a small SIP package.

The PH75F48-12 operates on input voltage levels from 3.6V to 6V and provides fixed 5V, 12V, 24V or 48V outputs depending on input voltage. It accepts an input voltage of either 3V or 5V, and delivers an output voltage as high as 48V, depending on the input voltage. The output current of the converter is 700mA and its output voltage accuracy is ±1%. It has an adjustable output voltage range of 5V to 48V with minor adjustments. When operating at higher input voltage the output voltage of the converter can be adjusted to the required output. The efficiency of the converter is up to 97% and the switching frequency is 250KHz.

The PH75F48-12 has excellent short circuit protection, over temperature protection and input under voltage protection. It is designed with a low shutdown current of 25μA, which is ideal for battery powered applications. The device also includes an advanced current limiting feature, which helps to protect the system from inrush current when the load is powered on.

The PH75F48-12 uses synchronous rectification technology, so it does not require the use of any external MOSFETs. This reduces the need for external components and simplifies the overall design. The device is also available in a small SIP package, making it easy to integrate into a variety of applications.

The PH75F48-12 is suitable for many applications where a regulated and efficient output voltage is required. It is commonly used in automotive, telecom and industrial applications, as well as medical and consumer electronics applications. The device can also be used in applications such as LED lighting and DC motor control.

The working principle of the PH75F48-12 is based on the Buck Switching Regulator circuit. The circuit consists of a voltage regulator, two power MOSFETs, feedback, control and current limit circuits. The feedback circuit monitors the output voltage of the regulator and feeds the signal back to the control circuit. The control circuit then adjusts the switching of the power MOSFETs to regulate the output voltage. The output voltage is regulated to the required level by controlling the duty cycle of the power MOSFETs and the switching frequency. The current limit circuit limits the maximum current to the load and helps to protect the device from over-current. The PH75F48-12 also features an enable pin to control the device’s on/off state.

In summary, the PH75F48-12 is a highly efficient, reliable and durable DC-DC converter, which is suitable for a wide range of applications. It is ideal for use in systems requiring regulated and high efficiency DC power. The device is also available in a small SIP package, making it easy to integrate into a variety of applications.

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