TPS40170RGYR Integrated Circuits (ICs)

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TPS40170RGYR Application Field and Working Principle

The TPS40170RGYR is a high voltage step-down DC/DC controller (DC/DC converter) produced by Texas Instruments. It is a member of the family of TI's switching controllers. It is used to convert a large input voltage to a lower output voltage in portable and battery powered applications. This device is used in portable device applications such as mobile phones, tablets and smart watches.The TPS40170RGYR Controller is a high performance, DC/DC controller featuring an integrated power switch, voltage reference, flexible control logic and a wide range of current limit protection. The device is designed to operate from an input voltage of between 4.5V to 28V and can operate with an output current up to 10A. It provides the ability to regulate the output voltage by setting the desired voltage output through an external voltage divider or via an I2C interface.The TPS40170RGYR includes two high-speed power switches (sourcing and sinking) with dynamic conduction control, UVLO (Under Voltage Lockout) protection and low quiescent current. The controller also features dynamic gate drive current limiting, current sense limiting and thermal overload protection to protect against over-current conditions.The device includes a current-mode control with two selectable frequency modes. The first mode (250kHz) provides optimized efficiency while the second mode (500kHz) allows for improved transient response. The user can also control the output voltage using an external voltage divider, or via an I2C interface. In order to adapt to various changes in the application, the TPS40170RGYR provides adjustable current limits, soft start and shutdown, cycle-by-cycle current protection and a thermal shutdown protection for improved performance and device safety.The TPS40170RGYR is a comprehensive DC/DC controller with a wide range of features for improved performance, flexibility and safety making it suitable for a variety of portable, battery powered applications. It is available in a 10-pin TDFN package with a RoHS compliant Pb-free finish.

Conclusion

The TPS40170RGYR is a high performance, DC/DC controller produced by Texas Instruments. It has an integrated power switch, voltage reference, flexible control logic and a wide range of current limit protection. It is used to convert a large input voltage to a lower output voltage in portable and battery powered applications and is suitable for a variety of portable, battery powered applications. The device includes a current-mode control with two selectable frequency modes, adjustable current limits, soft start and shutdown, cycle-by-cycle current protection and a thermal shutdown protection for improved performance and device safety. This device is an ideal choice for applications that require high efficiency, low power dissipation and long battery life.

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