TPS7A1633DRBT

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TPS7A1633DRBT is a high-performance CMOS low-dropout linear regulator with input voltage support from 1V to 6.5V, output voltage ranging from 1.4V to 5.5V and a maximum output current of 350mA. This highly accurate device is a superb choice for applications requiring very low quiescent current and the flexibility to use wide input and output voltage ranges. It combines excellent performance, wide voltage range and low power characteristics.

Application Field:

The versatile TPS7A1633DRBT is best suited for a variety of designs, including industrial, automotive, consumer, computer peripheral and more. It can supply power to memory, interface and system power rails in networking, test and measurement, multimedia and digital imaging systems, as well as MCUs, memories and other digital and analog ICs. It also works well in many portable devices such as cell phones, PDAs, digital cameras and Bluetooth headsets. The device is available in the tiny SOT-23 package that requires minimal PCB area.

Working Principle:

The TPS7A1633DRBT uses a voltage regulator architecture based on CMOS process technology for active components. This process allows for a wide input voltage range, low quiescent current, and a low dropout voltage. The error amplifier uses a pair of PMOS transistors and is connected to an internal bandgap reference. This reference source is stable over a wide range of temperature and output voltage ranges. When the output voltage drops, the error amplifier compares the output voltage to the reference voltage and increased the current to to the pass transistor. This results in an increase of the output voltage due to the voltage drop of the pass transistor. The regulation is done with a pulse width modulation method that is at a fairly high frequency which reduces the amount of power dissipated in the linear regulator.

The TPS7A1633DRBT also features a replaceable PMOS Pass transistor. This feature allows the user to replace the pass transistor in the event that it is burnt out from over-current. The device also includes an over-current protection, thermal shutdown, and short-circuit protection circuit to ensure safe operation under extreme conditions.

Overall, the TPS7A1633DRBT is a excellent choice for applications requiring very low quiescent current. With its wide operating voltage ranges, low-dropout performance, and protection circuitry, the TPS7A1633DRBT is well suited for high-performance linear regulator applications.

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