TPS7A0518PDQNR

PMIC - Voltage Regulators - Linear

TheTPS7A0518PDQNR is a single-channel, high-performance low-dropout linear regulator (LDO) designed to provide ultra-low dropout voltages and low quiescent current in a wide variety of applications. This device offers superior load and line regulation, fast transient response, high power supply rejection ratio (PSRR), and shutdown capability.

Application Field

TheTPS7A0518PDQNR is suitable for battery-powered systems and other power-sensitive applications requiring a low dropout and low quiescent current. Examples of common applications are digital media players, personal digital assistants (PDAs), digital cameras, and video recorders. Other applications include non-critical applications such as supply voltage adjustment for flash memory, DSPs, ASICs, and microprocessors.

Working Principle

TheTPS7A0518PDQNRuses a pass transistor layout to regulate output voltage and two internal voltage reference circuits to set the output voltage. Under heavy load, the device will draw additional current from the input source to compensate for the drop in output current. The device operates in the tracking mode, where the top side of the pass transistor is kept at the same potential as the input voltage. This ensures stable output voltage performance over extended temperature and load variations.

TheTPS7A0518PDQNR utilizes an internal bandgap voltage reference to maintain a constant reference voltage and to minimize variations in output voltage due to line and load variations. It also includes an internal current limit circuit to protect the device against over-current conditions. The device also has an enable control pin, so it can be shut down when not in use to eliminate the load current.

TheTPS7A0518PDQNR is designed to operate over a temperature range of -40 to +125°C. It offers ESD protection of up to 2kV, excellent signal-to-noise ratio (SNR), low output voltage ripple, low input voltage noise, and high output current capability. The device also supports advanced features such as soft start and advanced monitoring, which are beneficial for portable applications.

Conclusion

TheTPS7A0518PDQNR is a single-channel, high-performance low-dropout linear regulator (LDO). Its superior performance and features make it an ideal solution for power-sensitive applications. It offers superior load and line regulation, fast transient response, high power supply rejection ratio (PSRR), and shutdown capability over extended temperature and load variations.