TPS797285DCKT

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TPS797285DCKT is a high efficiency 150mA low-dropout linear regulator developed by Texas Instruments. It utilizes a high performance P-channel-MOSFET (PMOS) to provide stable and reliable power to load with low quiescent current draw. This device is suitable for powering applications that require ultra-low voltage operating from a 3V to 6V input voltage range.

The TPS797285DCKT is a single-channel, low-dropout linear regulator with an integrated PMOS for improved efficiency and higher-performance in low-voltage applications. This single-channel regulator is capable of delivering up to 150mA of current output, with the device capable of operating at a supply voltage of 2.75V to 6.5V. The device also features shutdown current of 30nA which is much lower than the quiescent current of typical regulator devices, making the TPS797285DCKT an excellent choice for battery-powered applications.

The device features high ripple rejection of 60dB (typ), Output Voltage tolerance of ±1%, and current limit, thermal protections, and overvoltage protection. The TPS797285DCKT is capable of providing fast load transient response (<1ms) and an output voltage accuracy of 5mV. Additionally, this device can be easily used in both ceramic and electrolytic capacitors.

The TPS797285DCKT is perfect for applications where very low quiescent current and low dropout voltage are essential. It can be used for battery-powered devices such as cellular phones, personal digital assistants (PDAs), and MP3 players, or for signal conditioning or protection circuits such as power management, interfaces and signal transduction. It can also be used for low-voltage embedded applications, digital signal processors (DSPs), and various other devices.

The working principle of the TPS797285DCKT is based on the principle of an ideal linear regulator, which uniquely combines key features like output voltage regulation, input voltage regulation, overvoltage protection, current limiting, thermal protection and a low operating current. First, the internal PMOS MOSFET regulates the output voltage through its high input impedance, by controlling the flow of current from the output to the input. This PMOS regulates the output to a precise level depending on the feedback loop of the device. The device makes efficient use of power, where it regulates output voltage to the maximum level with a minimum dropout voltage and quiescent current. On the other side, the integrated overvoltage protection circuit protects the device from high input voltages, and the current limiting feature further protects the device from being damaged by high current draw.

The thermal shutdown feature of the TPS797285DCKT protects the device and applications from thermal failure. Moreover, the device features frequency compensation, which helps maintain the stability of the device in various conditions. The device also features an on/off pin that controls the output of the device, which can be activated/deactivated as desired.

In summary, the TPS797285DCKT is a high efficiency 150mA low-dropout linear regulator developed by Texas Instruments. It has been designed to meet the needs of battery powered applications that require ultra-low voltage operation with a 3V to 6V input voltage range. The device provides low quiescent current, fast transient response, high input impedance and low dropout voltage, making it suitable for various battery-powered applications. Additionally, the integrated overvoltage, current limiting, and thermal protection features make this device a great choice for low-voltage embedded applications, digital signal processors, and many other applications.

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