TPS77501QPWPRQ1

The TPS77501QPWPRQ1 is a low dropout (LDO) linear voltage regulator designed to meet the needs of low current, low noise, and low voltage applications. The LDO provides excellent line and load regulation and low voltage ripple performance. The TPS77501QPWPRQ1 is designed to manage a variable output voltage of 0.8V to 5.0V, with a programmable current load capability up to 1A. The device features on-die Ultra Low Noise (ULN) and Low Dropout (LDO) topologies, both of which provide excellent power supply noise and power efficiency. The device has a wide range of capabilities and features, such as protection from inrush current, output overvoltage protection, overtemperature protection, power-good signal, short-circuit protection, and output voltage adjustment through programmable potentiometers or external resistors.

Application Field

The TPS77501QPWPRQ1 is ideal for applications requiring low-noise and precision DC/DC regulation. Typical applications include microprocessor cores, digital signal processors, and embedded systems requiring reliable, low-noise power. The device can be used in automotive, aircraft, and industrial applications where efficient, low-noise power and reliability are essential.

Working Principle

The TPS77501QPWPRQ1 is an integrated linear regulator offering accurate control of power supply voltage. The device operates by taking a voltage source (Vin) and regulating it to a specified output voltage (Vout) through a feedback compensation and control circuit. The device includes an active voltage reference, error amplifier, output transistor, current limit, and over-temperature protection. The device features an Ultra Low Noise (ULN) architecture with a low-noise linear regulator for low-noise applications. The ULN architecture reduces the output noise by using a fast start-up voltage reference, which reduces output noise by using a low-bandwidth output voltage control and low-impedance reference node.

The current limit of the device is user-programmable to achieve system stability and protect against overcurrent conditions. The device supports dynamic current-limit control, enabling dynamic response to increasing load conditions. The device also features an overvoltage protection function that limits the output voltage in a fault condition. The device also features short-circuit and overtemperature protection for additional system protection. The device has a power-good output signal to indicate the proper functioning of the system.

The device features a programmable current load capability that can be used to optimize power supply performance. The device includes a programmable output voltage adjustment through programmable potentiometers or external resistors, giving the user the flexibility to optimize design to meet specific application requirements.

Conclusion

The TPS77501QPWPRQ1 is a low dropout linear voltage regulator designed to meet the needs of low current, low noise, and low voltage applications. The device is ideal for applications requiring low-noise and precision DC/DC regulation. The device has a wide range of capabilities and features, such as protection from inrush current, output overvoltage protection, protection from short-circuit and overtemperature, and adjustable output voltage. The device also features an Ultra Low Noise (ULN) architecture with a low-noise linear regulator for low-noise applications. The device also includes a programmable current load capability and programmable output voltage adjustment through programmable potentiometers or external resistors.