TPS51220ARTVT

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The TPS51220ARTVT is a special purpose voltage regulator integrated circuit (IC) used to voltage regulate power in multiple integrated applications. It is manufactured by Texas Instruments and designed specifically to provide support to digital ICs and provide an efficient, reliable low-cost solution for power regulation. In this article, we will discuss the application field and working principle of the TPS51220ARTVT voltage regulator IC.

The key application field of the TPS51220ARTVT is in the design of voltage regulators for multiple DC/DC Buck converter. This specially designed IC is highly versatile and features a complete synchronous buck converter regulator with various features such as temperature monitoring, adjustable output voltage, high operating temperatures, and low output ripple. It allows for easy scalability across different end-applications and is a great solution for power regulation in communication system, consumer electronics, industrial, automotive and other embedded systems.

The TPS51220ARTVT possesses an integrated synchronous buck converter with a typical efficiency of 92%. Its continuous output current can range from 0.05A to 1A and its output voltage is adjustable from 0.7V to 5V with a maximum operating temperature of 105°C and an output ripple value of 5mVp-p. Additionally, the IC utilises pipeline current sensing to provide enhanced protection against over-current transients.

The TPS51220ARTVT operates at a switching frequency of 1.8MHz and provides digital control capability with PWM and PSM as programmable operating modes. Furthermore, it has multiple auxilary features such as Auto-Discharge, internal over-temperature protection, GATE driver over-current protection and UVLO. The internal switching structure of the IC provides an unbeatable combination of efficiency, size and cost.

The main working principle and operation of the TPS51220ARTVT relies on the buck DC/DC converter topology. When a voltage is applied across the input terminals, the internal power MOSFET switches ON to draw current and provide a regulated output. The internal switching controller then monitors the output voltage and adjusts the pulse width or frequency as required, to maintain a constant output. If the output voltage is not within the required range, the controller will cut off the power MOSFET, thereby entering auto-discharge mode.

The TPS51220ARTVT provides a wide array of digital, analog and thermal protection features for reliable operation. It has integrated digital soft-start that limits peak current for stable startup and over-current protection (OCP) to detect and protect against excessive current. Additionally, the TPS51220ARTVT also has an integrated Power-up and Power-down functionality, as well as an over-temperature protection that shuts down the system when temperature exceeds the set threshold.

To summarise, the TPS51220ARTVT is a special purpose voltage regulator IC used to voltage regulate power in multiple integrated DC/DC Buck converter applications. It features a complete synchronous buck converter regulator with adjustable output voltage, high operating temperatures, low output ripple and various protection features. The main working principle and operation of the TPS51220ARTVT relies on the buck DC/DC converter topology.

The specific data is subject to PDF, and the above content is for reference