TPS76825QPWPR

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Texas Instruments’ TPS76825QPWPR is a low dropout (LDO) linear voltage regulator. It is designed to provide a regulated output voltage from a wide range of input voltages. The TPS76825QPWPR operates from an input voltage range of 1.7 to 5.5 volts, and is capable of delivering up to 300mA of load current. It has a low quiescent current of 200uA and includes a power-on reset (POR) circuit. The device provides excellent line/load regulation of 0.01%/0.01% and high power supply rejection (PSR) of 72dB at 1KHz. In addition, its output voltage range is adjustable from 0.8 V to 5.5 V in 50mV increments.

The TPS76825QPWPR is ideal for applications such as handheld and battery-powered devices, TV monitors, white goods and point-of-load applications. It is available in a small, space saving 5-pin SOT23 package. It also has a large dynamic operating range of -40 to +85 degrees Celsius, making it suitable for a wide range of temperature applications.

The TPS76825QPWPR is designed to operate as a linear regulator, a type of voltage regulator that works by controlling the voltage drop across a series resistor. The voltages across the resistor vary as the load current varies, resulting in the output voltage being regulated over a range of load currents. The basic linear regulator circuit includes two components, a reference voltage source and a series pass device. The reference voltage is compared to an adjustable reference voltage that is connected to the input of the pass device. An error amplifier compares these two voltages and buffers the adjustable reference voltage to the input of the pass device, which acts as a current-limiting circuit to prevent over-driving the pass device.

The TPS76825QPWPR utilizes a fail-safe circuit that shuts down the output voltage when the input voltage falls below its operating range. This prevents damage to other circuits that might be connected to the device. The TPS76825QPWPR also incorporates a low-voltage detect circuit that monitors the output voltage, and will shut down the output voltage when the output voltage falls below a predetermined threshold. Additionally, the TPS76825QPWPR includes a power-on reset circuit that will hold the output voltage off until the input voltage reaches a predetermined voltage level.

The TPS76825QPWPR includes protection features such as short circuit protection, over-temperature protection, and current limiting. The device also includes an adjustable soft-start circuit which can be used to control the inrush current during power-up. In addition to these protection features, the device also offers a low-power mode which can be used to lower the quiescent current of the device and reduce power consumption. In summary, the TPS76825QPWPR is an ideal solution for applications requiring low noise, low power, and low dropout.

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