ST715C33R Integrated Circuits (ICs)

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ST715C33R Application Field and Working Principle

ST715C33R are linear voltage regulators that belong to the Power Management Integrated Circuit (PMIC) product family. They feature adjustable output voltage up to +15 volts, low 3-terminal output configuration, and internal current limiting, thermal protection and short circuit protection features. For applications requiring additional features, such as temperature sensing, temperature monitoring, and overvoltage protection, a comprehensive series of PMICs is also available.

Application

ST715C33R offer an adjustable output voltage range of up to +15 volts. The output voltage can be programmed through external resistors. The device is suitable for multiple applications such as:

• Microcontroller supply voltage
• LED driver supply voltage
• Audio amplifier supply voltage
• Television supply voltage
• Computer system supply voltage
• Battery voltage regulators

Working Principle

The working principle of the ST715C33R is based on a three-terminal output configuration, in which one terminal is used to adjust the output voltage. The output voltage is adjusted by the ratio of two external resistors, R1 and R2, connected to the device\'s ADJ pin. The output voltage can be determined by the following equation:

V_OUT=1.225×(1+R2/R1)

The input voltage is applied to the IN terminal of the device, and the regulated output voltage is generated at the output terminal, OUT. The device features internal protection features, such as current limiting, thermal protection and short circuit protection, to prevent damage from operating faults.

Conclusion

The ST715C33R is a linear voltage regulator ideal for a wide range of applications. It offers an adjustable output voltage range of up to +15 volts, low 3-terminal output configuration, and internal current limiting, thermal protection and short circuit protection features. The device is also suitable for applications requiring additional features such as temperature sensing, temperature monitoring, and overvoltage protection.

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