Texas Instruments TPS77918DGKR

Texas Instruments Part Number TPS77918DGKR（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 TPS77918DGKR, a high-performance, low-dropout voltage regulator designed to meet the demanding power management needs of today's electronic devices. With its impressive features and versatile application fields, this voltage regulator is a must-have for engineers and designers. The TPS77918DGKR offers a fixed output voltage of 1.8V, making it ideal for powering sensitive components such as microcontrollers, sensors, and RF modules. Its low dropout voltage of only 150mV at 500mA ensures efficient power delivery, even in low voltage conditions. This voltage regulator also boasts a high output accuracy of ±2%, ensuring precise and stable voltage regulation. One of the standout features of the TPS77918DGKR is its exceptional transient response, which allows for quick and seamless voltage regulation during load changes. This makes it perfect for applications that require fast response times, such as portable devices, automotive electronics, and industrial control systems. Furthermore, the TPS77918DGKR incorporates a wide input voltage range of 2.7V to 6.5V, making it compatible with a variety of power sources, including batteries and AC adapters. Its low quiescent current of only 25µA further enhances its efficiency, making it an excellent choice for battery-powered applications. In summary, the Texas Instruments TPS77918DGKR is a high-performance voltage regulator that offers exceptional features and versatility. Whether you're designing a portable device, automotive electronics, or industrial control systems, this voltage regulator is sure to meet your power management needs with precision and efficiency.

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 is the difference between linear regulators and switching regulators?

  There are significant differences between linear regulators and switching regulators in terms of working principles, efficiency, stability, cost and application range.
  Working principle:
  Linear regulators achieve the function of stabilizing the output at a set value by adjusting the voltage difference between the output voltage and the input voltage. It achieves stable output voltage by controlling the conductivity state of the power transistor.
  The switching regulator converts the input voltage into a pulse signal transmission and smoothes the output through a filter by quickly switching between the input and output ends to achieve the function of stabilizing the output at the set value. The switching regulator uses PWM (pulse width modulation) control to control the output voltage by adjusting the time duty ratio of the high and low levels within a cycle.
  Efficiency:
  The efficiency of the linear regulator is relatively low, usually between 60% and 70%. When the voltage differenc

• 2. How to choose a linear regulator?

  1. Switching regulator: A switching regulator uses an output stage that repeatedly switches between "on" and "off" states to generate an output voltage together with an energy storage component. Its adjustment is achieved by adjusting the switching timing based on the feedback sample of the output voltage. In a fixed-frequency regulator, the switching timing is adjusted by adjusting the pulse width of the switching voltage, which is called PWM control.
  2. Parameter regulator: LDO is a linear regulator. Linear regulators use transistors or FETs operating in their linear region to subtract excess voltage from the applied input voltage to produce a regulated output voltage. This transistor allows saturation, so the regulator can have a very low dropout voltage, usually around 200mV.
  3. Regulators for laser cutting machines: According to the use requirements of high-power laser cutting machines and the current power supply situation in my country, regulators that meet

• 3. What is the minimum input voltage of a linear regulator?

  The minimum input voltage range of linear regulator varies from model and application.
  For certain low -voltage lower -voltage regulators, its minimum input voltage range is usually 2.5V to 2.7V. This type of regulator design is used to power the internal LDO drive circuit and can drive PMOS FET to provide high output current. However, when the output voltage is lower than 1.8V and the output current is greater than 2.5A, the linear regulator with PMOS bypass components may be used for external heat dissipation due to additional air flow requirements and/or the heat generated by the regulator. It becomes inconvenient and the cost will increase.
  For universal linear stabilizers, its input voltage range can be very wide. For example, some general -purpose linear regulators have 3V to 40V input voltage range. Even for models suitable for 24V systems, the input maximum voltage can reach 60V Then, then
  In summary, the minimum input voltage of the linear regulator does not have a fixed st