TPS76618DG4

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TPS76618DG4 Application Field and Working Principle

TPS76618DG4 is an ultra-low-dropout (LDO) linear regulator that comes with a versatile combination of low, fixed-output voltages, low quiescent current, and space-saving packaging. It has a wide input voltage range, high current capability, excellent thermal stability, and superior noise rejection. Also, this linear regulator offers a low current shutdown mode, further improving the overall power efficiency.

TPS76618DG4 is mainly used in portable and small form-factor systems, such as mobile phones, digital still cameras, PDAs, digital video recorders, and other consumer electronics products. Featuring an adjustable output from 0.8V to 5.5V, the TPS76618DG4 can ensure the ideal voltage output for devices designed to run on either 2.7V or 1.8V devices.

Designers looking for a space-saving low power solution can use the TPS76618DG4, which comes in an industry-standard TSOP-5 package. Further, this regulator also features high efficiencies and improved start-up times. The device also includes protection features such as overvoltage protection and reverse-polarity protection, thus providing a more reliable system.

Working Principle of TPS76618DG4

The TPS76618DG4 operates on the principle of a low drop-out regulator. This device uses a voltage reference and amplifier to maintain the output voltage at the desired level. The device has two main elements - a differential amplifier and an output transistor. The differential amplifier has two inputs - one for the output voltage and one for the reference voltage. The amplifier then compares the two and sends the appropriate control signals to the output transistor. The output transistor then adjusts the output voltage to maintain the desired level.

The input voltage is regulated by the control current that is sent from the amplifier to the output transistor. The control current is regulated such that there is no substantial output voltage drop with the increased load. This ensures that the output voltage is maintained at a constant level despite changes in the load. The output voltage is also protected from surges, overvoltages, and reverse-polarity because of the safeguards that are built into the device.

Overall, TPS76618DG4 is a great choice for designers looking for an efficient solution for their low power systems. With its space-saving packaging, high current capabilities, low quiescent current, and wide input voltage range, it is an ideal choice for mobile, robotics, and surveillance systems.

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