TPS75215QPWPR Integrated Circuits (ICs)

PMIC - Voltage Regulators - Linear

The TPS75215QPWPR is a programmable low-dropout (LDO) linear regulator from Texas Instruments, featuring an output voltage of up to 6.5V and an average output current of 150mA. The versatile device combines an adjustable output voltage, a low-noise voltage reference, and advanced protection features. It is designed for easy implementation in applications such as LCD backlighting, optical storage drives, embedded systems, and smartphones.

Performance

The TPS75215QPWPR offers fast transient response and low ground noise of 80 uVRMS. This makes it suitable for low-noise audio and video applications. Its low quiescent current of 8 mA makes it ideal for conserving battery life. The integrated control logic enables features like output voltage tracking, output voltage enable/disable control, and empty output enable/disable control. The device can also be programmed to a low-noise 120 mV TRACK/SS output.

Protection Features

The TPS75215QPWPR includes a wide range of protection features to prevent over or under voltage operation and short circuits. These features include an over-temperature protection (OTP) function to protect the device from overheating, over current limiting, external output voltage pin voltage monitoring, as well as overvoltage comparator output with reverse current blocking capability. The OTP function monitors the die temperature and shuts the device off before it can be damaged by excessive heat.

Applications

The TPS75215QPWPR is designed for use in a wide range of electronic applications, including LCD backlighting and optical storage drives. It is also used as a power supply for embedded systems, such as industrial controllers, networking systems, and battery powered devices. Additionally, the device is used in portable audio and video equipment, such as radiometers, transceivers, and digital signal processors.

Working Principle

The TPS75215QPWPR linear regulator works by controlling the output voltage to remain within the range specified by the user. When the input voltage exceeds the regulated output voltage, a drive signal is generated to turn on the device. This drive signal is then used to switch on the internal FET and regulate the output voltage. When the input voltage is lower than the output voltage, the device is turned off, shutting down the internal FET and reducing the amount of power being consumed.

The device also features a low drop out voltage, which means that the voltage difference between the input and output voltages is very small, ensuring that the device is efficient and dissipates very little heat. This low drop out voltage also helps to extend the life of the device and helps to reduce the power consumption. Additionally, the integrated voltage reference helps to maintain a consistent output voltage throughout the range of input voltages.

Conclusion

The TPS75215QPWPR is a versatile and power efficient linear regulator. It features a wide range of protection features and a low quiescent current. Its fast transient response and low ground noise make it suitable for a range of low-noise applications. This makes the TPS75215QPWPR an ideal choice for LCD backlighting and optical storage, as well as a variety of embedded applications.