PMIC - Voltage Regulators - Linear

The TPS76750QPWPG4 is a high performance, low quiescent current voltage regulator IC integrated with a precise voltage reference and a low pass filter (LPF) to provide a high output voltage accuracy. It is capable of delivering up to 400mA of output current while maintaining a very precise output voltage, and is protected against over-voltage and reverse current conditions. The integrated LPF provides a clean output signal that is prerequisite for many SPWM (Space Vector Pulse Width Modulation) based applications. It is suitable for applications that require precise control of the output voltage and dynamic response, typically in industrial power and computing systems.

Application Field

The TPS76750QPWPG4 is suitable for applications in automotive, industrial, home appliance, and computing systems. Automotive applications include power supplies for airbag systems, HVAC, engine control, and audio systems. Industrial applications include motor control, analogue-to-digital converters, industrial drive electronics, welding, and power supply protection functions. Home appliance applications include water-level detection, LCD backlight dimming, and battery charging. Computing applications include power supplies for servers, embedded systems, and network switching.

Working Principle

The TPS76750QPWPG4 uses a linear regulator based on a PMOS (p-Channel Metal Oxide Semiconductor) integrated circuit, to provide precise voltage regulation. The output voltage is set through an external voltage divider. A voltage reference is also connected to the device to provide a precise reference voltage to the microcontroller. The regulator controls the output voltage by comparing the reference voltage to the feedback voltage, and adjusts the amount of current flow through the output device accordingly.

The regulator is designed to operate over a wide range of input voltages, from 4.6 V to 32 V. In addition, it is designed to tolerate surge voltages up to 40 V for up to 20 µs, with a 14 V maximum on the output side. The device is capable of delivering up to 400 mA of output current with a low quiescent current of 17 mA. The device is protected against over-voltage and reverse current conditions.

CONCLUSION

The TPS76750QPWPG4 is a PMIC based linear voltage regulator that is suitable for a wide range of applications including automotive, industrial, home appliance, and computing systems. It is designed to deliver up to 400 mA of output current with a low quiescent current of 17 mA and to tolerate surge voltages of up to 40 V. It is protected against over-voltage and reverse current conditions. With its precise voltage reference, clean output signal, and wide operating range, the TPS76750QPWPG4 can provide reliable performance in a variety of applications.