SUTW62415

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DC-DC converters are electronic circuits designed to convert a given voltage level to another level. These circuits can be used to reduce the original input voltage or to step up the input voltage to a higher level. One such circuit is the SUTW62415. This device is an advanced, high-efficiency, high-power 2-Phase Step-Up DC-DC converter.

SUTW62415 Application Field

The SUTW62415 was designed to be used in a wide range of applications including telecom, consumer, and industrial. This device is capable of providing 2.1A of continuous output current, paired with adjustable PWM frequency. This makes it suitable for a variety of applications, ranging from powering low-power, low-noise LEDs, to providing power for medium/high power voltage level-shifting circuits and communication systems.

The SUTW62415 is well-suited to applications across several electrical fields, such as automotive electronics, avionics, and medical electronics. It can also be implemented to construct a number of switching power supplies for various consumer needs, including the power adapter outputs found in computers, mobile phones, digital cameras, etc.

SUTW62415 Working Principle

The SUTW62415 is a simple yet powerful two-phase step-up DC-DC converter based on a fixed switching frequency, with variable duty cycle. It is designed with synchronous rectification to reduce power loss and increase efficiency. This makes it ideal for applications that require a high power efficiency, such as those applications which have limited space and cost constraints.

The SUTW62415 is based on a two-phase interleaved boosting topology. This topology allows for a shorter circuit and, therefore, a smaller circuit size. The two phases are separated by 180° in order to reduce switching losses and increase inductor current utilization. This working principle also prevents current overloading and reduces the amount of voltage ripple, providing a smoother and more stable output voltage.

In addition, the SUTW62415 utilizes a synchronous rectifier to reduce power loss by allowing the transistor to turn off when the inductor current transitions from positive to negative. This prevents the transistor from dissipating heat and increases efficiency. It also reduces noise and EMI radiation.

Conclusion

The SUTW62415 is a high-efficiency, high-power two-phase step-up DC-DC converter, providing up to 2.1A of output current. It was designed to be used in a wide range of applications such as telecom, consumer, and industrial uses. Its working principle is based on a two-phase interleaved boosting topology with synchronous rectification, allowing for high power efficiency, reduced power loss, and increased inductor current utilization.

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