TPS60130PWPR

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TPS60130PWPR Application Field and Working Principle

The TPS60130PWPR is an internal synchronous step-down DC/DC converter with internal power switching devices for portable applications. It is designed for a wide input voltage range, up to 6V, and provides high efficiency conversion with integrated MOSFETs. It is applicable for battery-powered, USB powered or AC adapter powered designs.

Application Field

The TPS60130PWPR is a low power DC/DC converter ideal for powering small embedded systems and applications, such as portable and wearable products, mobile accessories, industrial instruments, automotive systems, and user interfaces. It offers integrated switching MOSFETs and a wide input voltage range up to 6V to support embedded systems that require a low input voltage and a wide adjustment range of output voltage.

Features

• Wide input voltage range: 2.6V to 6V
• Integrated power MOSFETs
• Operating frequency up to 2.4MHz
• 1.2V to 5.0V adjustable output voltage
• Programmable soft-start and frequency
• Quiescent current (Iq) of 3mA
• Vout (UVLO) voltage of 0.9V
• Accurate output current protection
• Built-in thermal overload protection

Working Principle

The TPS60130PWPR contains two power-MOSFETs, one for switching the power path and another one to control the power flow between input and output. The boost diode is integrated in the power-MOSFET to reduce power waste and increase efficiency. The voltage on the CIN and COUT pins is regulated by the internal digital controllers. The micro-controller turns the power-MOSFETs on and off in order to maintain the proper output voltage. The controller can be adjusted for desired performance.

The TPS60130PWPR provides a programmable soft-start, as well as an enable pin to reboot the system or adjust system’s operating frequency. The enable pin can also be used to enable and disable the converter. The I2C interface enables access to all of the system settings. The two pins, mEN and OVLO, enable the system to monitor and manage the output voltage and current by providing the under-voltage and over-voltage lockout signals. The external compensation circuitry is implemented to provide the precise control loop for the output voltage and to reduce the eCHOP ripple for improved transient response.

The TPS60130PWPR offers excellent light-load efficiency for applications. Due to its low quiescent current (Iq) of typical 3mA and its low operating frequency, the TPS60130PWPR is suitable for battery-powered applications. It also provides additional features, such as built-in thermal overload protection, over-voltage and under-voltage protection.

Conclusion

The TPS60130PWPR is a hi-efficiency step-down DC/DC converter with integrated power MOSFETs, which enables wide input voltage range and adjustable output voltage. It is a feature-rich chip that provides programmable soft-start, enable pin, I2C interface and extensive protection functions. It is ideal choice for battery-powered and USB powered applications.

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