PT6526B

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DC DC converters are electrical devices that convert energy from one voltage to another. One of the most popular DC DC converters is the PT6526B. By learning more about its application field and working principle, users can decide whether the PT6526B is the best converter for their needs.

Application Field

The PT6526B is a switching power supply that is designed to meet the most demanding requirements for high performance, high efficiency power conversion. The PT6526B is an ideal solution for applications such as power supplies, battery charging, remote monitoring, and telecommunication systems. It is a highly efficient model that operates with voltages ranging from 9 to 57 volts and offers many features including:

• Adjustable Switching Frequency – The PT6526B offers adjustable switching frequency. It can operate between 15 to 100 kHz.
• High Efficiency – The PT6526B is designed for high efficiency and is capable of delivering up to 97.5% efficiency in some applications.
• Low quiescent current – The PT6526B has a very low quiescent current of only 45A.
• Low standby power consumption – The PT6526B has a very low standby power consumption of only 6.2W.
• Wide operating temperature – The PT6526B has an operating temperature range from -20 to 85 degrees Celsius (-4 to 185 degrees Fahrenheit).
• High reliability – The PT6526B has a high reliability, and is capable of withstanding up to 10,000 operating hours at full load.

Working Principle

The PT6526B is a buck-derived topology. In basic terms, this means that it takes an input voltage and reduces it to an output voltage through a process of switching. This device can switch from a lower voltage to a higher voltage or from a higher voltage to a lower voltage. It is a highly efficient device, as very little energy is dissipated in the process.

The PT6526B is a synchronous buck type switching power supply. This type of power supply uses two MOSFET transistors, one of which is an on-resistor (high side switch) and one of which is an off-resistor (low side switch). The on-resistor switches between on and off states at the switching frequency, thereby regulating the output voltage. The on and off resistors are controlled by an internal pulse-width modulation (PWM) controller, which is triggered by the switching frequency.

The main components of a synchronous buck converter are the input capacitor, output capacitor, output inductor, and the two MOSFET transistors. The input capacitor is used to filter the input voltage. The output capacitor is used to store energy when the output voltage is low and to release it when the output voltage is high. The output inductor is used to filter the output voltage.

When the switch is off, the output voltage of the device is determined by the load current, load voltage, and the inductor current. When the switch is on, the device output voltage is determined by the output inductor current, the inductor voltage, and the input capacitor voltage. The magnitude of the output voltage is determined by the PWM controller. A smaller value of the PWM duty cycle will reduce the output voltage, and a larger value will increase the output voltage.

The PT6526B is a versatile device and can be used in a variety of applications. It is designed to meet the most stringent requirements and is capable of delivering very high efficiency. With the wide range of features and adjustable switching frequency, the PT6526B is an ideal choice for many applications.

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