TPS75215QPWPREP

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TPS75215QPWPREP Application Field and Working Principle

The TPS75215QPWPREP is an integrated circuit specifically designed for Power Management applications. It is an advanced linear regulator designed to get digital power supplies that require low input and output ripple, ultra-fast transient response, and the highest possible accuracy when controlling the output voltage. This Power IC is characterized by high efficiency power conversion and integrates a full range of advanced features, including output voltage precision trimming, low dropout operation and adjustable soft-start. The device also includes a thermal sensing circuit, monitoring junction temperature and enabling protection against overheating.

Application Field

The TPS75215QPWPREP is suitable for various industrial, automotive, telecoms and consumer applications, such as mobile phone power supplies, notebook power supplies, base stations and motor control systems. It is capable of handling an input voltage of 2.7V to 6V, and provides a fixed internal voltage output up to 3.3V or 5V.

Features

• Typical output current is up to 1.5A.
• Input voltage range of 2.7V to 6V.
• Fixed internal voltage output up to 3.3V or 5V.
• Output voltage precision trimming.
• Ultra-low dropout operation.
• Adjustable soft-start.
• Thermal sensing circuit to monitor junction temperature.
• Industry-standard SOT-23-5 package.

Working Principle

The TPS75215QPWPREP is an ultra-low dropout linear regulator that integrates an internal Power MOSFET. It uses an advanced error-amplifier control loop to drive the internal power MOSFET and maintain the required output voltage even at extremely low input voltages. An internal voltage reference set the output voltage reference by changing the feedback voltage. It has a PGOOD pin which monitors the output voltage when the output voltage is within the specified limits. External resistors can be used to program the soft-start and the overload compensation. An overload protection circuit provides protection against transient overloads.

The TPS75215QPWPREP also includes a thermal monitoring circuit which can detect junction temperature and trigger an external fault when the temperature exceeds the rated limit. In case of overtemperature situation, the device can shut down or slow down the output in order to prevent any permanent damage.

Conclusion

The TPS75215QPWPREP is a high efficiency low power regulator designed for power management applications. It features ultralow dropout and adjustable soft-start, output voltage precision trimming, overload protection and thermal monitoring. It is suitable for many applications such as industrial, automotive, telecoms and consumer systems.

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