TPS40140RHHR

TPS40140RHHR Application Field and Working Principle

The TPS40140RHHR is a DC-DC switching controller belonging to the PMIC voltage regulators. This device is specifically designed to provide the best efficiency when controlling low-power step-down switching regulators. Its tiny size and wide range of features makes it an ideal solution for a variety of applications.

The TPS40140RHHR is a synchronous switching controller for DC-DC applications. It features an integrated controller and tri-state logic for controlling low-power step-down switching regulators. This device can provide a peak efficiency of greater than 95% with minimal external components. Moreover, the internal control circuitry and tri-state logic makes it easy to implement the system and reduce power consumption.

The key features of the TPS40140RHHR include an On-Board Power-On Reset (POR) for providing accurate startup operation, and a wide input voltage range with maximum ratings at 12V, making it ideal for low-power applications. Furthermore, the device also includes built-in gate drive logic, an adjustable soft-start, and a gate driving transistor with on-board over-current limit.

On the control side, the regulator has two control inputs: an external voltage reference pin and an external clock pin. The external voltage reference input selects the output voltage while the external clock input determines the switching frequency. To ensure the efficient operation of the regulator, its integrated temperature protection circuit will adjust the switching frequency to reduce the power dissipation.

In addition to the features mentioned above, the TPS40140RHHR has a robust protection scheme as well that guards against short circuits, over-temperature, and over-current. This ensures reliable and safe operation even in the most arduous applications.

The TPS40140RHHR is a versatile DC-DC switching controller designed for a variety of applications. Its low-power capabilities, high efficiency, robust protection scheme, and wide input voltage range make it an ideal choice for low-power step-down applications.