SPX1117T-L-3-3

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The SPX1117T-L-3-3 is a three-terminal linear regulator with an integrated power transistor. It is specifically designed to provide a low-noise, space-saving solution to convert a higher voltage (up to 28V) down to a lower, adjustable voltage (as low as 1.2V). This device is ideal for applications requiring efficient power conversion with minimal heat dissipation.

Application Field

The SPX1117T-L-3-3 can be used in a variety of applications including but not limited to:

• Supplying electronics in high-performance, embedded systems
• Powering memory, logic, and analog circuits
• Supplying power to peripherals in remote or mobile systems
• On-board power conversion in telecom, battery-operated, and automotive systems
• Memory and real-time clock (RTC) power supplies in computers and servers
• Battery charging and power control circuits

Working Principle

The SPX1117T-L-3-3 operates by using a three-terminal linear regulator principle, where a high input voltage is converted to a lower output voltage by a resistor. This process is called voltage regulation. The device is integrated with a power transistor which generates base current for the resistor. The base current is then modulated to the proper level by an error amplifier, producing the desired output voltage. This feedback loop helps maintain the output voltage within a predetermined range, allowing for consistent performance in a variety of conditions.

In addition, the SPX1117T-L-3-3 contains a variety of features which improve its performance and make it easier to use. These features include over-voltage protection, over-temperature protection, and current limiting. Together, these features ensure the regulator will respond quickly and accurately to changes in operating conditions and prevent it from overheating or damaging other components.

Conclusion

The SPX1117T-L-3-3 is a three-terminal linear regulator designed to provide a low-noise, space-saving solution to convert higher voltages down to adjustable lower voltages. Its wide input and output range, along with its comprehensive features, make it ideal for a variety of applications, specifically in embedded systems and in memory, logic, and analog circuits. Its three-terminal linear regulator principle and integrated power transistor make it an efficient, easy-to-use solution for power conversion.

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