TPS54260DGQ

The TPS54260DGQ is a highly efficient synchronous step-down converter for use in medium power applications with input voltages up to 40V. This device has an integrated gate driver and features a maximum output current of 8A. The device provides excellent thermal performance, a wide input voltage range, and protection features to ensure system reliability.

The TPS54260DGQ is a pulse width modulation (PWM) controlled buck regulator capable of tightly regulating the output voltage. The device features automatic power-good (PG) signal monitoring, adjustable soft start, fast-transient response, and peak current-limit protection. The device also has an on-board phase-lock loop (PLL) to ensure precise voltage delivery.

The TPS54260DGQ is an ideal choice for applications requiring low noise and low output voltage ripple, such as low power DC/DC converters, power supplies for small mobile electronics, automotive infotainment systems, consumer systems and server/file server applications.

Application field

The TPS54260DGQ is an ideal choice for a variety of applications, especially those demanding high input voltage and tight voltage regulation. Popular applications of this device include DC/DC converters, power supplies for small mobile electronics, automotive infotainment systems, consumer systems, server/file server applications, and more.

Working Principle

The TPS54260DGQ is a DC/DC synchronous step-down converter designed to deliver highly efficient power conversion at low noise and output voltage ripple. The device operates by switching the input voltage which is then regulated and controlled through a PWM control loop. A voltage reference is used to provide a stable output voltage and the PWM controller adjusts the switching frequency and duty cycle to ensure the regulated output voltage.

The device also features a synchronized PLL loop for improved voltage regulation and fast response to transients. The PLL also ensures that the output voltage is maintained at a controlled level by automatically adjusting the switching frequency when changes in input or output voltage occur.

For protection, the TPS54260DGQ includes a thermal shutdown to protect from excessive heating and a programmable current-limit circuit to prevent saturation of the components or excessive current in the system.