TL317PSR

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TL317PSR is a three-terminal adjustable linear voltage regulator with guaranteed thermal stability and output current capability. This type of regulator is equipped with features like protection from overvoltage, voltage tracking and current limiting. The TL317PSR is a versatile low dropout (LDO) regulator designed to drive high power equipment and provide superior electronic performance in demanding thermal environments.

Application Fields and Uses

TL317PSR is mainly used in power management applications such as:

• Computer systems including servers, workstations and desktops
• Data storage and communication networks
• Battery powered products including medical, automotive and telecom devices
• Industrial control systems
• Audio and video equipment
• Consumer electronic products

The TL317PSR can also be used in automotive and industrial applications. It is well-suited for supplying regulated high power loads within tight space constraints and also offers excellent reverse battery protection and short circuit protection.

Working Principle

The TL317PSR operates as an adjustable voltage regulator whose main purpose is to maintain a steady voltage at its output port. This is accomplished by comparing the output voltage to an internal reference voltage and adjusting the current flowing into the output port accordingly. The output voltage is controlled by adjusting the reference voltage by using an external voltage divider connected to the adjust terminal. The input voltage must be at least 1.5V above the desired output voltage for the regulator to operate properly and efficiently.

The TL317PSR features an open loop, error amplifier design with controlled slew rate slew rate limiting on the regulation loop. This helps to improve overall efficiency and reduce output voltage droop during transient load conditions. The output voltage is current limited to deliver up to 60mA, making it ideal for powering critical components. Also, the TL317PSR employs a proprietary protection circuitry in case of an over voltage condition in the system.

The TL317PSR utilizes a high power BiCMOS process technology that ensures superior performance and added protection over temperature and process variations. The internal gate resistance is highly consistent, eliminating unwanted spikes in the output voltage when switching supply sources. Moreover, the TL317PSR is designed to withstand input transients (up to 20V) which makes it ideal for automotive and industrial applications.

Conclusion

The TL317PSR is an ideal power supply solution for high power applications requiring precise control, efficiency and thermal stability. With its open loop error amplifier design, it is suitable for a wide range of applications in the consumer, telecom, industrial and automotive industries. The TL317PSR is an adjustable linear voltage regulator which can be operated over a wide range of conditions and is backed by a thermal stability warranty.

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