TL1963A-15DCQR

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PMIC - Voltage Regulators - Linear are an integral part of many power electronics applications. With their ability to regulate output voltages, they have been at the forefront of providing power management solutions. TL1963A-15DCQR is a high-performance linear voltage regulator which is intended for use in multiport systems requiring multiple output voltages.

TL1963A-15DCQR offers accurate regulation for loads up to 1.2A with an output voltage range from 1.2V to 5.5V. It features low output voltage ripple, low ground current, and no output leakage current. Its adjustable operating temperature range extends from 0℃ to + 70℃. The device is offered in four package options and can operate from 2.8V ~ 6V input voltage. An internal 2.2μF output capacitor is used for stability, improving the AC response characteristics.

TL1963A-15DCQR has a synchronous rectification output stage and built-in reverse current protection. The device has very low dropout voltage, making it efficient at regulating down to voltages right next to the input voltage. The minimum dropout voltage can be as low as 0.125V. The device also includes over-current and thermal shutdown protection, as well as a power good indicator.

The TL1963A-15DCQR operates by controlling the output voltage so that it equals the voltage at Vadj pin, assuming no load current. This source of reference is generated from an external resistor divider connected between the output and GND pins. Then, the output voltage is regulated to follow the voltage at the Vadj pin by regulating the power MOSFET at the output stage.

The output voltage accuracy is dependent on the resistance values of the external resistors, accuracy of the externally selected reference voltage, and the tolerance of the external feedback components. The device supports two operating modes depending on control of the power MOSFET. The Burst Mode control conserves power and reduces heat dissipation, while the On/Off control allows the output to be turned off and on.

TL1963A-15DCQR is a current-mode buck regulator, which means that the output voltage is regulated by controlling the on-time of the internal MOSFET. This allows for fast response time and a lower output voltage noise. It also improves circuit reliability due to reduced stress on the internal MOSFET.

TL1963A-15DCQR is an ideal solution for power applications where efficient power conversion and reliable power delivery are critical. It not only reduces power dissipation, but also provides a wide range of features such as over-current and thermal protection, fast line/load transient response, adjustable output voltage with external components, synchronous rectification architecture, power good indicator, and reverse current protection.

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