TPS79901YZUR

Introduction

The TPS79901YZUR is a low dropout (LDO) regulator that can output a minimum 1.1V to 5.5V from a 2.9V to 6.5V input power source. It is a fully integrated linear voltage regulator with advanced features including current limit protection and short circuit current protection, making it ideal for a variety of applications in specialized industrial and automotive applications.

Application Fields

The TPS79901YZUR can be used in various applications such as automotive systems, industrial systems, battery-powered equipment, and general electronics applications. Battery-powered systems require robust low dropout (LDO) regulators that can provide accurate voltage regulation without consuming too much power. The TPS79901YZUR is well-suited for these applications as it can supply an output current of up to 500mA, which is more than sufficient for most battery-powered applications. It can also help reduce the quiescent current of the system, which will result in longer battery life and less power consumption.

The TPS79901YZUR can also be used in automotive systems, as it can provide stable voltage regulation even in harsh operating conditions, including high temperatures and wide input voltage range. This makes it ideal for various automotive applications such as vehicle interior and exterior lighting, in-vehicle displays, HVAC systems, and powertrain electronics.

TPS79901YZUR can also be used in industrial systems and general electronics applications. This low dropout regulator is highly suitable for a wide range of industrial applications as it is robust, reliable and efficient. In addition, it is also suitable for use in general electronics applications, such as in notebook computers, mobile phones, and digital cameras.

Working Principle

The TPS79901YZUR is a current-mode linear voltage regulator that uses an error amplifier to control the output voltage. This error amplifier takes in a reference voltage (Vref), and compares it to the actual output voltage (Vout), and then adjusts the output voltage accordingly in order to maintain the desired output voltage.

The device uses a “droop” control technique to maintain a constant output current. It has an on-chip “sense resistor” that senses the current flowing to ground through the sense resistor, and then adjusts the output voltage based on this measured current. This “droop” control technique helps the device maintain a constant output voltage even under changing load conditions.

The TPS79901YZUR also has several important features including adjustable current limit protection, thermal shutdown protection and short circuit protection. These features make it ideal for use in industrial and automotive applications. It also has a low dropout voltage of only 300 mV. This ensures that the output voltage is maintained within a very narrow range.

Conclusion

The TPS79901YZUR is a low dropout (LDO) regulator that can output a minimum 1.1V to 5.5V from a 2.9V to 6.5V input power source. It is well-suited for battery-powered equipment, automotive systems, industrial systems and general electronics applications. It can supply an output current of up to 500mA, and has excellent current regulation characteristics, making it ideal for various applications. The device also has adjustable current limit protection, thermal shutdown protection and short circuit protection, making it highly reliable and robust in a wide range of operating conditions.