TPS3306-33D

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TPS3306-33D Application Field and Working Principle

A power management integrated circuit (PMIC) or supervisors voltage regulator (VR) is a circuit device that combines multiple components in a single integrated circuit case to control and manage power supply voltage. It applies to those systems in which stabilization, monitoring, control and protection of generated voltage is required. The PMIC, commonly abbreviated to VR, has several functions such as switching, combining, and controlling direct current (DC) and alternating current (AC) flows and also regulating start-up and shutdown conditions. These are all crucial functions required to ensure the optimum operating efficiency of the system under a variety of conditions. The TPS3306-33D is a low-cost PMIC supervisors voltage regulator from Texas Instruments and is ideal for providing stable voltage and current to the loads, and protecting them from overvoltage and short circuit. Designed for use with the Universal Serial Bus (USB) applications, this IC synchronizes with the on-board USB protocol. This IC is easily configurable, offering a wide range of functions and features.

Features

• Maximum output voltage of 6.5V with on/off control
• 2.2V adjustable reference output
• Configurable thermal protection
• Low disable voltage
• Low quiescent current (typical 6µA)
• Overcharge and reverse current protection
• Input voltage range of 3V to 6.5V
• Overvoltage protection

Application

The TPS3306-33D is an ideal power management supervisors voltage regulator for design applications such as laptop computers, mobile phones, and other low-power and mobile electronics. Additionally, it is well suited for automotive applications, remote monitoring systems, medical applications, and industrial user interface devices. It can be used for the purpose of voltage regulation, providing a stable voltage source for the load and protection from power source overvoltage and short circuit. Additionally, the TPS3306-33D helps to conserve energy by reducing power consumption.

Working Principle

The TPS3306-33D is a low-cost analog VR that operates on an advanced switching scheme and utilizes an adjustable low-bias voltage on-off control. It provides up to 6.5V of output voltage, and features a configurable thermal protection function. The IC also incorporates an over charge protection circuit to prevent overloading of voltages, and a reverse current protection circuit to prevent current from flowing in the wrong direction. Furthermore, the TPS3306-33D features a low input voltage range of 3V to 6.5V.

The TPS3306-33D has two pins for its switching arrangement, one for on-off control and one for output voltage. When the input voltage is lower than the off pin voltage, the supervisor will turn off. The supervisor\'s switcher circuit is designed to optimize low-ripple and provide high efficiency. When the voltage reaches the on pin voltage, the supervisors will turn on and the output voltage will start to increase until it reaches the final value.

The TPS3306-33D also features a configurable thermal protection function where the supervisor will turn off when the temperature of the device reaches its set limit. This feature makes the device suitable for applications that require higher thermal stability than other devices. In addition, the low quiescent current and low disable voltage values of the IC make it suitable for use in battery operated applications.

Conclusion

The TPS3306-33D is an ideal PMIC supervisors voltage regulator for design applications such as laptops, phones and other low-power and mobile electronics. It offers a wide range of functions for voltage regulation, providing a stable voltage and current source for the load and protecting it from overvoltage and short circuit. Furthermore, it helps to conserve energy by reducing power consumption, thanks to its low quiescent current and low disable voltage values.

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