TPS65123RGTT

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PMIC (Power Management Integrated Circuits) are special type of integrated circuits which are designed to manage power in multiple devices. They regulate the power supply, control power delivery and manage energy utilization in different types of devices such as smartphones, tablets and embedded systems. Voltage regulators form an integral part of PMICs and are utilized to control and adjust the output voltage of a power supply. Furthermore, special purpose voltage regulators are utilized in certain applications which demand precise voltage regulation capabilities. One of these special purpose voltage regulators is the TPS65123RGTT.

The TPS65123RGTT is an Ultra-Low Iq, Low Dropout Linear Regulator IC which is capable of providing precise voltage regulation. It is an ultra-low noise LDO (Low Dropout) regulator with an extremely low operating current of 0.45uA. The device utilizes an innovative adaptive on-time (AOT) control topology and has a operating temperature range of -40 to 125 degrees Celsius. The output voltage can be adjusted from 0.85V to 5V with a +/- 2.6% accuracy and can provide up to 300mA of load current. Furthermore, the device features integrated reverse-current protection and short-circuit protection. Additionally, it also features a power-good flag which indicates the presence of valid regulated output voltage.

The TPS65123RGTT is ideal for use in mobile devices, communications systems, low-power embedded systems, automotive applications and industrial control systems. Moreover, the device can be used as an input power supply, USB charger, system standby voltage, audio amplifiers and other applications that require precise voltage regulation. The device is available in vQFN 4x4x0.45 mm and MSOP packages.

The TPS65123RGTT voltage regulator works on the principle of on-time control. The AOT technique employed by the device is an eighth-order control system which senses the required output voltage and adjusts the on-time accordingly. The device also utilizes a differential amplifier to apply a reference voltage to the error amplifier. The error amplifier compares the output voltage and the reference voltage and adjusts the gate voltage of the pass transistor accordingly. Thus, the current through the pass transistor is varied in order to modulate the output voltage.

In conclusion, the TPS65123RGTT is an Ultra-Low Iq, Low Dropout linear regulator IC which can provide precise voltage regulation. It is ideal for use in mobile devices, communications systems, low-power embedded systems, automotive applications and industrial control systems. The device operates on the principle of on-time control and utilizes an AOT control topology. It is available in vQFN 4x4x0.45 mm and MSOP packages and can regulate the output voltage from 0.85V to 5V with a +/- 2.6% accuracy.

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