UC285TDKTTT-2 Integrated Circuits (ICs)

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PMIC - Voltage Regulators - Linear

UC285TDKTTT-2 is a series of low dropout linear voltage regulator IC, designed to provide a stable output voltage of 5V and low dropout performance. It is specially designed for high current applications and its low quiescent current makes it an efficient device for a wide range of applications.

Application Fields

UC285TDKTTT-2 is used in a range of applications such as:

• Portable devices and equipment
• Medical and industrial equipments
• Consumer electronics
• Telecommunications equipments
• Computer peripherals
• Ground stabilizing circuits and more.

Working Principle

UC285TDKTTT-2 works on a low dropout voltage regulator circuit and implements a two-stage design. The two-stage design consists of an error amplifier, PASS transistor and compensation circuit. In the first stage, the error amplifier compares the reference voltage to the feedback voltage and determines the base voltage for the PASS transistor. The base voltage increases when the reference voltage is higher than the feedback voltage and vice versa. This support the passage of an appropriate amount of current in order to maintain a regulated output voltage.

In the second stage, the PASS transistor is implemented using a P-channel MOSFET as the main element. This MOSFET receives current from the regulated voltage supply and also receives the base voltage from the error amplifier. The current is then passed through the MOSFET and the output voltage is set on the output pin. The compensation circuit is used to maintain power supply stability and balance out external inductances.

UC285TDKTTT-2 offer a few additional features such as a thermal shutdown protection and current limit circuit for improved reliability. It also offers a enable tuning pin, which can be connected to an external reference voltage source for enhanced accuracy.

UC285TDKTTT-2 also supports low quiescent current operations, making it an efficient solution for energy-saving applications. It also has a wide operating input voltage range from 2.5V to 15V, making it suitable for a wide range of applications.

Conclusion

UC285TDKTTT-2 is a low dropout linear voltage regulator IC that is designed to provide a stable output voltage of 5V. It works on a two-stage design consisting of an error amplifier, PASS transistor, and compensation circuit. UC285TDKTTT-2 is used in a range of applications such as portable devices, medical and industrial equipments, consumer electronics, telecommunication equipments, computer peripherals and more. It offers a few additional features such as a thermal shutdown protection, current limit circuit and an enable tuning pin for improved accuracy. Its low quiescent current operation makes it an efficient solution for energy-saving applications.

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