LTC3728EG#TRPBF

PMIC – Voltage Regulators – DC DC Switching Controllers: LTC3728EG#TRPBF application field and working principle

The LTC3728EG#TRPBF is a high-performance synchronous DC/DC step-down switching controller that operates from an input voltage of 6.0V to 24V and provides output voltage of up to 1.2V. Designed for applications in car entertainment and automotive systems, the controller is capable of working with input voltage and temperature, making it ideal for high-performance, high-efficiency load-transient applications which require accurate output voltage control and superior operational resistance. This device is constructed from a durable and robust LTG3728EG die, providing excellent thermal performance and stability.

Functionality of the LTC3728EG#TRPBF

The main function of the LTC3728EG#TRPBF is to provide efficient and accurate DC/DC regulation. The device contains a highly accurate voltage error amplifier and a fast-acting precise current-limit comparator. This allows precise current-limit regulation and precise output voltage regulation while maintaining excellent over-load protection.

The LTC3728EG#TRPBF operates with synchronous rectification and supports multiple switching frequency operations. The device can be configured to operate from a frequency of 1 KHz to 500KHz, allowing it to scale up power level as well. The switching frequency of the controller can also be synchronized to an external clock frequency, which helps to increase overall efficiency by avoiding multiple switching frequency nonlinearities. The device also features an internal slope compensation loop and an adjustable minimum on-time, allowing tight loop control over the switching frequency.

The controller is powered by an internal MOSFET gate driver, providing fast turn-on, quick turn-off, and power efficiency. Additionally, the device features protection against open, short, and floating loop conditions, further improving overall safety. The LTC3728EG#TRPBF is capable of working with a wide input voltage range, allowing it to remain stable and provide accurate regulation even under high-voltage conditions. The device also supports small output capacitors, allowing for more compact and efficient systems.

Applications for the LTC3728EG#TRPBF

The LTC3728EG#TRPBF is optimized for a wide range of applications. Its wide input voltage range, fast turn-on, quick turn-off, and high efficiency make it ideal for automotive, car entertainment, and automotive systems. It is also suitable for load-transient applications that require fast load-response, such as transceivers, wireless networks, and control systems. The device’s fast-acting current-limit comparator enables accurate current-limit protection against short-circuit conditions. Additionally, the LTC3728EG#TRPBF can be used in high-voltage systems where precision regulation and high-performance is required.

Conclusion

The LTC3728EG#TRPBF is a high-performance synchronous DC/DC step-down switching controller that is optimized for a wide range of applications. The device operates from an input voltage of 6.0V to 24V, features an accurate voltage error amplifier, fast-acting current-limit comparator, MOSFET gate driver, and an adjustable minimum on-time. It is suitable for automotive, car entertainment, and other high-voltage applications that require precise voltage regulation.