MIC29150-3.3WU-TR

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MIC29150-3.3WU-TR

The MIC29150-3.3WU-TR is a three-terminal adjustable linear voltage regulator with low dropout, low quiescent current, good line and load regulation, and high stability. The output voltage range is adjustable from 0.8V to a maximum of 35V using external resistors and the device can be used in applications where very low dropout is required. The device is well suited for battery-powered applications and ideal for automotive, industrial, and consumer applications where space and efficiency are important.

Applications

The MIC29155-3.3WU-TR is designed for use in a wide variety of applications, including:

• Automotive: Automotive systems, such as modules for engine control, transmission control and ABS systems, require low-voltage power supply with high efficiency.
• Industrial: Industrial applications such as factory automation, process control and safety systems require reliable power supplies.
• Consumer: Mobile devices such as cellular phones, TV tuners and digital cameras require very low dropout voltage, maximum efficiency and stable operation.
• Computer: Computer systems and peripheral equipment require low dropout and high efficiency as well as low noise.

Working Principle

The MIC29155-3.3WU-TR voltage regulator is a three-terminal positive adjustable voltage regulator of a type similar to the classic 2-terminal linear regulator, except that it uses two power transistors to provide better control of the output voltage. Its inner working principle is based on a series of feedback control loops that detect when the output voltage changes and adjust the current flowing through the two power transistors to maintain the required output voltage.

The device features an input voltage selection pin which allows users to select from two different input voltage ranges (1.8V to 16V and 4V to 35V). This helps minimize power losses as the input voltage range is kept as low as possible for the application.

The MIC29155-3.3WU-TR voltage regulator also has an adjustable input ramp that helps reduce output voltage transients. This is especially useful when the input voltage is rapidly changing.

The output voltage can be adjusted using two external resistors and is adjustable from 0.8V to a maximum of 35V. The stability of the output voltage is very good and it is capable of supplying up to 3.3W of output power (1A at 3.3V).

Overall, the MIC29155-3.3WU-TR is a very efficient and stable low-dropout three-terminal adjustable linear voltage regulator perfect for use in battery-powered applications, automotive, industrial and consumer applications.

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