DC DC Converters

DC-to-DC converters have many applications in various electronic circuits, and the application field of PT6707N is no exception. The PT6707N is a very efficient, DC-DC step-down converter designed for automotive and industrial applications. It provides a very high output current capability and is capable of output voltages down to 2.25V up to a maximum of 24V. Furthermore, it is designed to operate in hot environments and can withstand high temperatures.

The PT6707N is ideally suited for use in onboard automotive electronic systems such as Constant Voltage Regulators, Battery Charger Regulators, and Integrated Vehicle Heating, Ventilation and Air Conditioning (HVAC) systems. It is also suitable for use in industrial applications where higher currents and temperatures present a challenge. The device is designed to prevent thermal runaway, and operates up to maximum junction temperatures of 145°C, while still providing a low quiescent current.

Working Principle

The PT6707N is a step-down integrated DC-DC converter which converts a source voltage of up to 24V to an output voltage of 2.25V to 24V. It includes an internal 250kHz switching regulator that can outperform traditional linear regulators by more than 10 times. Furthermore, the device is capable of delivering a maximum of 5A of current to the output.

The PT6707N device uses an internal oscillator to control the switching, which is then amplified and filtered for the output voltage. The output voltage is regulated by an internal feedback loop, which adjusts the duty cycle of the switching regulator to maintain the output voltage at the required level. The input voltage is monitored on an analog input pin, and can be used to provide a voltage threshold that can be used to disable further switching if the input voltage drops too low. Additionally, the device is able to withstand short duration overload current spikes of up to 10 times the rated output current, and can be set up to provide additional protection against continuous overloads.

The PT6707N can operate in a wide range of temperatures, ranging from −40°C to +145°C. This makes the device suitable for high temperature industrial applications, as well as automotive applications where temperature extremes are encountered. Furthermore, the device is available in a small 8-pin DIP package, making it suitable for a wide range of applications.

Benefits

The PT6707N provides a number of advantages compared to other DC-DC converters. The most noteworthy is the high efficiency, which is achieved by the use of advanced integrated switching technology. This means that the device can deliver up to 95% efficiency when operating at its maximum output current, making it well suited for applications where high efficiency is a must. Additionally, the device is very compact, and capable of delivering output currents of up to 5A in a 8-pin DIP package.

The device is designed for operation in hot environments and can withstand temperatures of up to +145°C. This makes the device suitable for use in a variety of automotive and industrial applications where temperatures extremes are encountered. Finally, the device is protected against continuous overloads, as well as spikes up to 10 times the rated output current.

Conclusion

The PT6707N is an efficient DC-DC step-down converter designed for automotive and industrial applications. It features excellent thermal protection, as well as a low quiescent current, making it suitable for use in hot environments. Additionally, the device is capable of delivering up to 5A of current while still providing high efficiency, and is available in a small 8-pin DIP package.