TPS54620RHLR

TPS54620RHLR Application Field and Working Principle

The Texas Instruments TPS54620RHLR is a synchronous buck DC/DC converter that combines a high-efficiency power stage with integrated controller and MOSFETs. It provides a simplified power solution for DC-DC conversion in applications including servers, telecom infrastructure, and industrial/automotive applications. This article will discuss the application field, features, and working principle of the TPS54620RHLR.

Application Field

The TPS54620RHLR can be used for various types of DC/DC conversion in various types of applications, including servers, telecom infrastructure, industrial/automotive applications, and hard disk drives. In servers, it can be used for power supply regulation and powering low-power components and peripherals. In telecom infrastructure, it can be used for powering base station transceivers and modem cards. In industrial/automotive applications, it can power regulators, gate drivers, and HV DC/DC converters. In hard disk drives, it can supply PWM-driven spin and head coils.

Features

The TPS54620RHLR features an integrated controller and MOSFETs for high efficiency. It has a wide voltage range of 0.8V to 5.9V, with a 1MHz signal frequency and a 0.5V EN signal level. It supports soft-start of up to 900us and a burst/disable mode of up to 2.4V. It has a 2.5A/1.5A switch current and a current share capability with external configurable resistors. It has a wide temperature range with operation from -40°C to +125°C and junction temperature of up to 150°C.

Working Principle

The TPS54620RHLR follows the buck dc/dc switching regulator design. In the buck converter, an inductor is placed between the input and output of the converter. The switch causes the inductors to store energy when ON and releases it when OFF. Thus, the voltage drop across the inductor gradually decreases as the circuit switches ON and OFF. By adjusting the average ON time of the switch, the output voltage of the circuit can be adjusted. The TPS54620RHLR uses a synchronous buck converter design to ensure high efficiency and reliable performance.

In addition, the TPS54620RHLR features an integrated controller and MOSFETs for high efficiency. The controller ensures the accurate control of the output voltage and current. It monitors the operating conditions of the circuit, including input voltage, output voltage, temperature, and load current, and adjusts its switch timing accordingly. The MOSFETs are used to control the switch timing and ensure the circuit operates reliably.

Conclusion

The TPS54620RHLR is a synchronous buck DC/DC converter that combines a high-efficiency power stage with integrated controller and MOSFETs. It is suitable for dc/dc conversion in servers, telecom infrastructure, industrial/automotive applications, and hard disk drives. It features a wide voltage range, current share capability, and a wide temperature range. The TPS54620RHLR follows the buck converter design and uses an integrated controller and MOSFETs to ensure reliable operation and high efficiency.