TPS542941RSAT

TPS542941RSAT Application Field and Working Principle

Texas Instruments TPS542941RSAT is a digital pulse-width modulation (PWM) switching regulator designed for high-performance, low-power applications. This product features an integrated DC and DC boost regulator with integrated load disconnection capability. It is suitable for applications requiring low power, low noise, and high efficiency.

The TPS542941RSAT is classified as a DC-DC switching regulator and can be used for regulating a wide input voltage range (4.5V to 24V), as well as for general purpose voltage regulation. The device offers both synchronous and non-synchronous switching modes, with a wide range of PWM frequency and duty cycles. The full-featured device provides a number of protection features, including over-voltage protection, over-current protection, and thermal shutdown. The TPS542941RSAT is housed in a RoHS and low-profile compliant package.

TPS542941RSAT Working Principle

The TPS542941RSAT is based on a non-synchronous Buck topology, with an integrated DC-DC boost regulator. The device is optimized for efficient, low power operation and is designed for low voltage applications up to 24V. In general, the device operates by first rectifying the input voltage and then regulating it with a pulse width modulation (PWM) signal which controls the switching rate. The load is then switched from the input voltage to the output voltage. A small feedback loop regulates the output voltage to maintain a predictable output.

The TPS542941RSAT can be used for both step up and step down conversion. In the boost mode, the device operates by switching the input voltage from higher to lower, creating an inverted signal which can be used to drive the load. In the buck mode, the device operates by switching the input voltage from lower to higher, creating a signal directly used to drive the load. The device can be used in either single-ended or dual-loop mode depending on the application.

The integrated DC-DC boost regulator provides a low power, low noise, highly efficient step-up solution for applications that require a stable output voltage. The boost regulator is protected by a thermal shutdown and over-current protection circuit to protect against excessive power dissipation.

Conclusion

The TPS542941RSAT from Texas Instruments is a low-power, low-noise, high-efficiency, digital pulse-width modulation (PWM) switching regulator designed for high-performance applications. The device offers both synchronous and non-synchronous switching modes, with a wide range of PWM frequency and duty cycles. The device is housed in a RoHS and low-profile compliant package and is suitable for a wide range of applications including step-down and step-up conversion.