Texas Instruments TPS79401DGNTG4

Texas Instruments Part Number TPS79401DGNTG4（PMIC - Voltage Regulators - Linear）, developed and manufactured by Texas Instruments, distributed globally by Jinftry. We distribute various electronic components from world-renowned brands and provide one-stop services, making us a trusted global electronic component distributor.

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Introducing the Texas Instruments TPS79401DGNTG4, a high-performance, low-dropout (LDO) voltage regulator designed to meet the demanding power management needs of various applications. With its exceptional features and versatility, this regulator is the perfect solution for a wide range of electronic devices. The TPS79401DGNTG4 offers an ultra-low dropout voltage of only 200mV at a maximum output current of 1A, ensuring efficient power delivery even in low voltage conditions. Its low quiescent current of 75µA helps conserve power, making it ideal for battery-powered devices. Additionally, this regulator provides excellent line and load transient response, ensuring stable and reliable power supply to sensitive components. This LDO voltage regulator is designed to operate over a wide input voltage range of 2.5V to 5.5V, making it compatible with a variety of power sources. Its small form factor and thermal shutdown protection make it suitable for space-constrained applications, while its high PSRR (power supply rejection ratio) ensures minimal noise interference. The TPS79401DGNTG4 finds applications in a multitude of fields, including consumer electronics, industrial automation, telecommunications, and automotive systems. It can be used to power microcontrollers, sensors, audio amplifiers, and other low-voltage devices. Its robust design and exceptional performance make it an excellent choice for any application that requires reliable and efficient power management. In conclusion, the Texas Instruments TPS79401DGNTG4 is a high-performance LDO voltage regulator that offers exceptional features and versatility. With its wide input voltage range, low dropout voltage, and small form factor, it is the perfect solution for a wide range of electronic devices in various application fields.

Voltage Regulators-Linear is an electronic device used to convert an unstable DC voltage into a stable DC voltage. It regulates the voltage through an active component (such as a transistor or field effect tube) and a feedback network to ensure that the output voltage remains constant within a certain range. Linear regulators usually operate under low input voltage changes and load changes, and are able to provide a very clean and smooth output voltage.

Voltage Regulators-Linear has a wide range of applications, covering almost all electronic devices requiring a stable DC power supply. In the field of consumer electronics, linear voltage regulators are widely used in mobile phones, tablets, laptops and other portable devices to provide stable voltage support for core components such as processors, memory and display screens. In the field of industrial automation and instrumentation, linear voltage regulators are often used in precision measuring instruments, sensor signal processing and other occasions because of their low noise and high precision characteristics. In addition, linear regulators also play an indispensable role in areas such as medical equipment, aerospace, and automotive electronics, where the quality of the power supply is extremely high. For example, in medical equipment, linear regulators ensure the power stability of devices such as pacemakers and monitors, ensuring the safety of patients.

• 1. What problems will linear regulators bring to the circuit?

  The problems that linear regulators bring to the circuit mainly include low efficiency and a lot of heat.
  Linear The main working principle of the voltage regulator is to control the output voltage of the transistor through a current amplifier to keep the output voltage stable. This working mode causes the linear regulator to control the regulating tube through a differential voltage when adjusting the output voltage. The control tube needs to absorb part of the input voltage, which makes the efficiency of the linear regulator relatively low. In practical applications, this means that the linear regulator will convert the difference between the input voltage and the output voltage into heat energy, causing serious heating of the device, especially when the input and output voltage difference is large, this power loss will further increase, causing the device to heat up.

• 2. When should a linear regulator be used instead of a switching regulator?

  In low-power and low-frequency application scenarios, a linear regulator should be used instead of a switching regulator.
  Linear regulator Suitable for low-power and low-frequency applications, with simple circuit structure, low noise and good stability. They control the output voltage of the transistor through a current amplifier to keep the output voltage stable. This working mode makes linear regulators perform well in low-power and low-frequency applications, although they are less efficient and generate more heat, and their application range is limited. In contrast, switching regulators use high-frequency pulse modulation technology to convert input voltage into a stable output voltage. They have the advantages of high efficiency, small size and fast response, and are suitable for high-power and high-frequency applications. Therefore, when the application requirements are not the main considerations for circuit complexity and cost, but have high requirements for the stability and

• 3. Can a linear regulator be up?

  Linear regulators cannot be boost.
  The main function of a linear regulator is to stabilize the output voltage, protecting the electrical equipment from high or unstable voltage effects. It realizes a stable output voltage by adjusting the gap between the output voltage and the input voltage, but this process is limited to lowering the voltage, not including the voltage. The working principle of a linear regulator is to regulate the voltage by converting excess voltage into heat loss, thereby realizing the voltage regulation. This feature determines that it does not have the voltage function.