TPS79901DDCR

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The TPS79901DDCR is an advanced low quiescent current linear voltage regulator from Texas Instruments. It operates from 2.7 V to 18 V input voltage range and provides adjustable output voltage of 0.8 V to 3.3 V. The output current capability of this regulator is 800 mA and it can be used in a wide range of applications including analog and digital power supply designs. This device features low quiescent current, low dropout voltage, fast transient response, short-circuit protection, thermal shutdown, low output voltage ripple, and excellent line and load regulation. These features make it ideal for use in industrial, automotive and consumer products.

The TPS79901DDCR is based on a buck topology, which is a stable, highly efficient DC-to-DC converter circuit. This topology enables the regulator to operate in constant power mode and provide good thermal performance in the face of changing input and output voltages. In this circuit, the input voltage is applied across a switch, which is connected in series with an inductor and the output capacitor. The resulting input current is smoothed out by the inductor, and the resulting regulated output voltage is regulated by an integrated voltage loop comparator.

The typical operating circuit for the TPS79901DDCR is shown in the image below. The input voltage is applied to the Vin pin, and the output voltage is adjustable from 0.8 V to 3.3 V through the Vadj pin. The output current is limited by a current-limiting resistor, which can be adjusted for optimal performance. The ground pin, GND, is connected to the negative side of the input voltage. In this circuit, the output voltage is regulated by the loop comparator which senses the output voltage, compares it to the reference voltage, and adjusts the duty cycle and switching frequency of the switch accordingly.

The TPS79901DDCR is a versatile linear regulator that can be used in many applications. It can be used as a post-regulator in a buck converter, as a linear regulator in a power supply system, or as a post-regulator in a boost converter, buck-boost converter, or flyback converter. In addition, the TPS79901DDCR can be used in battery-powered systems, especially those with high efficiency requirements. It can also be used to power digital and analog circuits, such as RF, audio, and video components. In addition, this device is suitable for powering low-power, low-voltage or high-current devices, such as LCD backlighting, LED lighting, low-power digital signage, and mobile phones.

The TPS79901DDCR is a high performance and low quiescent current linear voltage regulator that can be used in a wide variety of applications. It is a cost-effective solution that provides an adjustable output voltage from 0.8 V to 3.3 V with a maximum output current of 800 mA. This device features low quiescent current, low dropout voltage, short-circuit protection, thermal shutdown, and low output voltage ripple. It is ideal for industrial, automotive and consumer products, and can be used in battery-powered systems with high efficiency requirements. Furthermore, it can be used to power low-power, low-voltage, or high-current devices, such as LCD backlighting, LED lighting, low-power digital signage, and mobile phones.

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