LTC3104IDE#TRPBF

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The LTC3104IDE#TRPBF is a linear and switching low-dropout (LDO) charge pump integrated circuit (IC). It is suitable for many different applications, including powering ultra-low power microcontrollers, developing systems, displaying systems, and wide-area networking.

In terms of its application field, the LTC3104 is designed to regulate voltage outputs ranging from 1.8V to 5.5V. This provides a wide range of options for powering the applications mentioned above. In addition to its versatile regulation capabilities, the LTC3104 also offers very low dropouts (less than 0.2V at 5mA load current and 8V input voltage) and extremely low quiescent current draw (less than 150mA). This allows applications to achieve ultra-low power operation with minimal power loss.

In terms of its working principle, the LTC3104 is a switching charge pump that combines the features of a buck and boost regulator. The input voltage to the charge pump is converted to a higher voltage at the output. This is achieved through the circuitry of the charge pump, which includes an oscillator, two FET switches, an internal reference voltage (VREF) and an output protector. The oscillator sends pulses, which control the switches and cause the charge pump to operate in either a buck or a boost mode depending on the voltage difference between the input voltage and the VREF.

The buck mode is the most commonly used; it reduces the voltage at the output, which is suitable for applications requiring a lower output voltage than the input voltage. Conversely, boost mode increases the voltage at the output and is suitable for powering higher-voltage devices.

Additionally, the LTC3104 offers a discharge feature that lowers the output voltage when the input voltage drops below the specified threshold. This reduces the power consumption significantly and makes the device more efficient in conditions of low input voltage.

Overall, the LTC3104 is an LDO charge pump device designed with low power consumption and versatile operation in mind. Its wide range of input and output voltage settings make it suitable for a number of applications. Moreover, its low power consumption and discharge feature add to its efficiency.

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