TL1963A-25DCYR

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PMIC (Power Management IC) refers to an integrated circuit that controls the power status of an electrical system, ranging from the system-on-chip level of voltage and current to the device-level of system power consumption. Voltage regulators serve as a type of PMIC and are responsible for controlling the output voltage generated by a circuit. Linear voltage regulators are a type of voltage regulator and maintain the output voltage at a constant predetermined level. The TL1963A-25DCYR is a linear voltage regulator commonly used in the power management field.

TL1963A-25DCYR Application Field & Working Principle

The TL1963A-25DCYR is a versatile, step-down, linear voltage regulator that offers excellent load and line transient performance with low dropout voltage and low current consumption in comparison to other voltage regulators. The regulator is integrated with an industry standard package design which is available in a wide variety of output voltage and current ratings. Some of its additional features include input under-voltage lockout (UVLO) and minimum on-time in PWM mode. This voltage regulator is versatile for applications such as industrial, automotive, gaming, and IOT.

In its basic form, the TL1963A-25DCYR is a switch-mode regulator that operates as a converter between two voltage sources. It takes a higher voltage input on the left side, and regulates the output voltage on the right side. The regulator features a power stage consisting of an internal insulated gate bipolar transistor (IGBT) and an inductor, forming a resonant tank circuit that acts as an efficient voltage converter. The IGBT acts as the main switch and output rectifier of the circuit, while the inductor provides the necessary inductive strength to keep the output current in the desired range. The resulting output voltage is regulated by an internal error amplifier, which compare the output voltage to an internal reference voltage and adjusts the duty cycle of the IGBT switch as needed.

The load of the voltage regulator is variable and can be adjusted depending on the application. The maximum load current of the regulator is typically set by its input voltage, inductor value and the input current. The load regulation accuracy of the TL1963A-25DCYR at full load current is typically better than ±3%, compared to other linear regulators that can have errors of up to ±5%. The output voltage is also extremely stable, with maximum line and load regulation of 0.25% for a 12V input and a 1.8V output. The fast transient response to a large load current change is also better than other linear voltage regulators, making it ideal for applications that require high step load currents.

The TL1963A-25DCYR is designed with a wide input voltage range of 2V to 18V, and supports a wide range of output voltages from 0.8V to 5.5V. It also features adjustable programmable soft start, which allows the system engineer to set the rise time of the output voltage depending on the system’s power requirements. The IC also features an internal thermal protection and current limit that helps protect the IC against over-temperature, current overload and over-voltage conditions. The transistor saturation and overcurrent protection, as well as a wide operating temperature range of -40°C to 85°C, also contribute to the regulator’s robustness and reliability.

In summary, the TL1963A-25DCYR is a versatile, high performance, linear voltage regulator designed for a variety of applications that require reliable regulated power. Its robust features and low cost make it a popular choice for many low power industrial, automotive, gaming and IOT applications.

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