TPS72201DBVT

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TPS72201DBVT Application Field and Working Principle

The TPS72201DBVT is an adjustable linear voltage regulator from Texas Instruments in which current and voltage outputs can be easily adjusted. It is part of the company’s “Advanced Low-Power BOM Optimized” (ALPO) device family and is classified as a PMIC—Voltage Regulators—Linear product. The device is suitable for use in a variety of applications, including notebook and desktop PCs, mobile phones, automotive, communications, storage, and digital audio systems.

Features

• I2C Serial Bus Interface: Supports external control of output voltage and current
• CompACT™ housing: 6mm x 6mm x 0.9mm
• Thermal Foldback Protection: Limits output current when operating temperature rises above TJOFF
• Low Operating Current: Operates at only 6µA quiescent current when EN is low
• Low Noise: Output noise is 1mVrms at 1kHz
• High Efficiency: 95% peak efficiency

Application

The TPS72201DBVT is suitable for a variety of applications, including notebook and desktop PCs, mobile phones, automotive, communications, storage, and digital audio systems.

• Notebook and Desktop PCs: Used for powering system logic and memory subsystems, as well as for powering core logic for system management.
• Mobile Phones: Used for power regulation for the camera, WLAN and other analog/digital peripherals.
• Automotive: Used for power regulation for display, ECU, and other functions.
• Communications: Used for power regulation for baseband, RF and multiple signal applications.
• Storage: Used for powering disk drives, solid-state drives, and other storage subsystems.
• Digital Audio Systems: Used for powering audio systems with features such as equalizers, bass enhancer, and audio preamplifiers.

Working Principle

The TPS72201DBVT is a low-dropout (LDO) linear voltage regulator which provides efficient voltage regulation without generating significant heat. When properly configured, it can deliver up to 100mA of output current with very low output noise. The device also features a low quiescent current, making it ideal for mobile applications. When using the device, it is important to ensure that the input voltage is at least 1.3 volts higher than the desired output voltage.

The device is designed to be adjustable in both the current and voltage levels. It is configured by programming the control registers with the proper settings for desired output voltage and current. The adjustment can be done via the I2C serial bus interface, which is also supported by the device. Additionally, the device provides thermal foldback protection that limits the output current when the device’s operating temperature rises above a specified value.

The device also provides excellent efficiency, with a 95 percent peak efficiency. This is due to the fact that the device operates in continuous conduction mode, which eliminates a significant amount of power loss through unnecessary voltage conversion steps.

Overall, the TPS72201DBVT is an ideal solution for a variety of power regulation needs, provided that the user properly configures the device’s settings for the desired application. Its low operating current and high efficiency make it suitable for a variety of applications in various industries.

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