TPS7A8033DRBR

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TPS7A8033DRBR is a low dropout linear regulator (LDO) from Texas Instruments. It is a three-terminal device with a 1.8 V to 5.5 V input voltage range and an ultra-low on-resistance of 300 milliohms. The output voltage of the TPS7A8033DRBR is adjustable from 1.2 V to 4.975 V. This is an ultra-low-noise CMOS LDO designed for use in battery-powered applications such as cell phones, laptops, and other portable appliances.

In terms of device performance, the TPS7A8033DRBR has a shutdown current of 0.15 μA, 0.28 μA quiescent current (I_Q), and 90 μA maximum output current. The device also has an 85% peak efficiency and a line and load regulation of 0.1%. It is designed to operate at 0.6% accuracy over temperature, and has an extended temperature range of -40°C to +125°C.

The TPS7A8033DRBR includes a slew-rate-controlled power-on reset to ensure a reliable start-up. It also has an enable pin that allows the device to be switched on and off from a logic device without needing an external transistor. The enable pin has a logic high-low threshold of 1.6 V and 0.4 for active high and active low operations respectively.

The device features various protection features such as an overvoltage latch-off protection, short-circuit protection, and current-limit protection which protect the device and its external components. The temperature-sense circuitry ensures reliable operation under extreme power load conditions, and the low noise regulation ensures a clean power supply.

The TPS7A8033DRBR is ideal for a variety of applications as it can be used to supply voltage to microprocessors, RF transceivers, and other analog circuits. It is well suited for use in cell phone and laptop designs as it is designed to operate at low noise levels and high efficiencies. It can also be used in test and measurement equipment and other instrumentation applications. The device is available in a quality-enhanced 8-pin SSH µMAX package.

The working principle of the TPS7A8033DRBR is based on an architecture that combines a linear regulating element with an error amplifier. This architecture offers higher efficiency, greater accuracy, and better noise immunity than traditional LDOs. The linear element is a resistive network that subtracts part of the incoming voltage from the output voltage to achieve regulation. The output voltage is further precision-controlled by the error amplifier, which actively adjusts the resistive network to maintain a voltage drop of the desired value.

The TPS7A8033DRBR is an ultra-low-dropout linear regulator designed for battery-powered applications. Its low dropout voltage, high efficiency, low quiescent current, and low noise make it an ideal choice for power supply design in portable applications. Its slew-rate-controlled reset, enable pin, protection features, and extended temperature range make it well suited for use in diverse applications such as mobile phones, laptops, and other electronic equipment.

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