TPS51220ARTVR

Series:	D-CAP™
Packaging:	Tape & Reel (TR)
Part Status:	Active
Applications:	Controller, Notebook Power System
Voltage - Input:	4.5 V ~ 32 V
Number of Outputs:	2
Voltage - Output:	1 V ~ 12 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	32-WFQFN Exposed Pad
Supplier Device Package:	32-WQFN (5x5)
Base Part Number:	TPS51220A

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TPS51220ARTVR Application Field and Working Principle

The TPS51220ARTVR is a special purpose voltage regulator mainly used in a wide range of applications, including communications, gaming, and connected devices. The primary purpose of this device is to accurately control the output voltage of a power supply circuit, including voltage regulation and power management. The device is designed to operate over a wide range of input voltages, from low to high, and is capable of providing highly efficient power delivery to the load at all times.

Features of the TPS51220ARTVR

The TPS51220ARTVR is specifically designed for applications requiring high-performance and reliable power delivery. The device features an adjustable output from 0.45V to 2.5V and includes a wide range of features for enhanced performance and protection. The device includes integrated protection circuits for protection against various fault conditions, including over- and under-voltage, over-current, and over-temperature. The device also provides configurable current limit and soft start functionality.

Applications

The TPS51220ARTVR is well suited for applications requiring high-conversion efficiency and superior power management. Such applications include portable devices such as tablet computers, smartphones, and wearables. Additionally, the device is well suited for applications including communications, gaming, connected devices, and light-duty automotive applications.

Working Principle

The TPS51220ARTVR operates using a Pulse Width Modulation (PWM) control/voltage feedback loop. In operation, the output voltage is regulated via the error amplifier, which compares the feedback signal from the output with the reference voltage. If an imbalance is detected in the signal, the error amplifier adjusts the duty cycle of the PWM signal accordingly, thus controlling the output voltage. The resulting PWM signal is then sent to the accurate driver, where it is converted into a low-frequency signal which is sent to the power stage for regulation. This unique PWM control allows for excellent line and load regulation, low output noise, and a fast response to changes in the input voltage. In addition, the TPS51220ARTVR includes a range of protection circuits such as over-voltage, over-current, and over-temperature protection. The device also provides programmable current limit and soft-start functionality, ensuring the load receives a reliable and safe power supply.

Conclusion

The TPS51220ARTVR is a high-performance special purpose voltage regulator which is suitable for a wide range of applications, including communications, gaming, and connected devices. The device is designed to operate over a wide range of input voltages, from low to high, with adjustable output from 0.45V to 2.5V. The device includes integrated protection circuits for protection against various fault conditions, including over-voltage, over-current, and over-temperature. Finally, the TPS51220ARTVR operates using a Pulse Width Modulation (PWM) control/voltage feedback loop for excellent line and load regulation, low output noise, and a fast response to changes in input voltage.

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