TPS622310DRYT Integrated Circuits (ICs)

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TPS622310DRYT Application Field and Working Principle

The TPS622310DRYT is an advanced DC-DC Synchronous Buck converter which can be used for devices running on very low power batteries such as wearables and other power-sensitive devices. This device offers an excellent solution in industry where low power consumption counts and to step down an input voltage to a broader range of output voltages depending on the application. The TPS622310DRYT is a high efficiency, switching step-down regulator that can reduce the input voltage ranging from 2.7V to 5.5V and generating output voltages as low as 1.2V with a maximum current of up to 200mA at up to 1MHz of switching frequency. The components are built in a tiny 8-lead Thin Shrink Small Outline Package (TSSOP) to save board space, temperature and noise issues, converters achieving 95% efficiency and a low 0.7V dropout voltage to allow even better performance. By understanding the working principle of TPS622310DRYT, its application fields can be more effectively exploited.

Working Principle

The core of the TPS622310DRYT is a synchronous step-down converter composed of a voltage source, an inductor, a switch, a rectifier, a current source and a regulating loop. The device operates with a fixed frequency in the range of 500KHz to 1MHz, the switch is driven in and out of conduction by the regulating loop where a comparator detects the error between sensed-output voltage and a reference voltage and drives an internal N-channel MOSFET to control conversion. When the switch is off, the inductor current will increase, storing energy in the form of magnetic field. When the switch is on, the same energy will be released to the load while the rectified capacitor charges up, completing the cycle. The TPS622310DRYT\'s efficient waveform allows for nearly no power loss both for the switch and for the rectifying diode. The waveform allows for cool operation, in comparison to linear regulators, and for low power consumption.

Application Field

Given its working principle, the application fields of the TPS622310DRYT are many and different. Historically, linear regulators have been used to convert an input voltage into an output voltage, and they were mostly applied in applications with low power requirement and high precision such as powering microcontrollers. Instead of linear regulators, switching regulators offer higher efficiency and easier circuit design.The TPS622310DRYT is specifically designed to match the power requirements of portable, low battery voltage and power-sensitive devices. Its impressive list of features make it attractive for wide range of purposes such as powering the main system, sub-systems, sensors, radios, displays and additional circuits. Moreover, due to the very low current consumption when operating from 1.2V to 5.5V, it can also be used in battery powered systems for optimal battery life.Therefore, it can be used for powering mobile phones and other consumer electronics requiring high efficiency, delivering power to portable medical devices and audio players, powering gaming peripherals and VR/AR standalone units and its use in automotive and industrial applications is also viable.

Conclusion

The TPS622310DRYT is a highly capable and advanced DC-DC Synchronous Buck converter. It is capable of step-down conversion from 2.7V to 5.5V and providing a stable output of 1.2V at current of up to 200mA at up to 1MHz of switching frequency. As such, it is optimal for most battery-operated low-power devices such as wearables and other consumer electronics, as well as well automotive and industrial applications. This device\'s excellent efficiency allows for very low power consumption and blazing switching speed, producing very little heat and noise, which is critical when powering low power and sensitive components. Furthermore, the integrated MOSFET, controlled by the regulating loop, makes for a very compact design, enabling it to fit into tight spaces and consuming very little space on a PCB.

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