TPS62679ZYFMT

TPS62679ZYFMT Application Field and Working Principle

The TPS62679ZYFMT is a PMIC, voltage regulator, DC-DC switching regulator offering an integrated solution designed to produce an output voltage of 0.9 V to 5.5 V from Li-Ion / Li-polymer, 1-cell / 2-cell alkaline, NiCd, and NLIMH battery packs up to 16 V (max). This device comes with a wide range of features including integrated MOSFETs, a smart power selector between buck, boost, and charge pumps, and automatic start-up and shutdown feature.

The integrated synchronous MOSFETs of the TPS62679ZYFMT have a low on-resistance, high frequency operation and low parasitic capacitance. This PMIC\'s smart power selector allows the user to choose an appropriate power path based on the environment, using the EN, SS and SLP pins. The TPS62679ZYFMT also features an automatic start-up and shutdown feature which can be used to power down the device in order to save power. In addition to this, the TPS62679ZYFMT also has an adjustable current-limit feature, which can be used to regulate the current flowing through the circuit.

The TPS62679ZYFMT is suitable for applications such as portable communication systems, wearables, automotive, gaming, and medical devices. Its low quiescent current is ideal for portable and power-sensitive applications. Its wide output voltage range (0.9V-5.5V) enables the device to be used in many types of applications. Its high efficiency also makes it suitable for battery-powered applications.

Working Principle

The TPS62679ZYFMT is composed of several main functional units, including a pulse-width modulator (PWM), a synchronous boost converter, and a synchronous buck converter. The device also features an embedded charge pump and an automatic start-up and shutdown feature. The PWM block takes the input voltage and generates a PWM signal that controls an external switch to step down (buck) or step up (boost) the voltage. The integrated synchronous MOSFETs of the TPS62679ZYFMT have a low on-resistance and high frequency operation, allowing them to deliver the output voltage with minimal losses. The output current is regulated using an adjustable current-limit feature.

In addition to the above mentioned features, the TPS62679ZYFMT also come with a low quiescent current and a thermal shutdown feature. The low quiescent current reduces the power consumption, making it more suitable for battery-powered applications. The thermal shutdown is used to protect the device from overheating during operation.

Conclusion

The TPS62679ZYFMT is a PMIC, voltage regulator, DC-DC switching regulator offering an integrated solution for output voltage ranging from 0.9 V to 5.5 V from Li-Ion / Li-polymer, 1-cell / 2-cell alkaline, NiCd, and NLIMH battery packs up to 16 V (max). The device features integrated MOSFETs, a smart power selector between buck, boost, and charge pumps, automatic start-up and shutdown, adjustable current-limit feature, low quiescent current, and a thermal shutdown feature. These features make the TPS62679ZYFMT suitable for a wide range of applications, including portable communication systems, wearables, automotive, gaming, and medical devices.