LT3065IDD-1.2#PBF

Linear Voltage Regulators

Linear voltage regulators are an important building block in almost all modern electronics. They are used in a variety of applications, ranging from powering microprocessors to controlling motor speed. The LT3065IDD-1.2#PBF is an example of a linear voltage regulator.

Application Field

The LT3065IDD-1.2#PBF is a SOT-223 packaged, adjustable voltage regulator. It can deliver a maximum output current of 1.2A and can supply output voltages between 1.2V and 20V, adjustable with external resistors. In addition, it is capable of providing thermal shutdown and overcurrent protection. This makes it ideal for applications such as powering small motors and making power supplies for digital and analog circuits that require adjustable output voltage.

Working Principle

The LT3065IDD-1.2#PBF operates by utilizing a feedback loop. It has an internal Reference Voltage (VREF), current sensing, and an error amplifier. The regulator senses the output voltage with a resistor which is connected to VREF divided by two. If the output voltage is too low, the error amplifier will increase the amount of current, turning on the internal p-MOSFET, thus increasing the output voltage. Conversely, if the output voltage is too high, the error amplifier will reduce the current and decrease the output voltage. This feedback loop ensures that the output voltage is able to remain within the predetermined range.

Conclusion

The LT3065IDD-1.2#PBF is an adjustable voltage regulator capable of delivering up to 1.2A of current. Its adjustable output voltage makes it suitable for small motor control and digital/analog circuit power supplies. Its working principle utilizes a feedback loop which senses the output voltage and adjusts the current to ensure that the output voltage remains stable.