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TPS76730QPWPR Application Field and Working Principle

The TPS76730QPWPR is a low dropout linear voltage regulator in Texas Instruments\' PMIC (Power Management Integrated Circuit) family. This voltage-regulating device is designed to provide a regulated output voltage level with low noise, tight accuracy, folded-cascode stability, and low quiescent current. The TPS76730QPWPR is available in a thermally-enhanced, 20-Pin WQFN (Wafer-level Quad Flat No-Lead) package and operates over a voltage input range of 1.20V to 5.5V and a temperature range of –40°C to 125°C. This voltage regulator can be used in multiple fields due to its high performance and reliable output voltage regulator. It is particularly useful for powering sensitive components such as microcontrollers, embedded systems, and consumer electronics. This device has an impressive accuracy of ±2% across the rated output voltage range (1.2V to 3.3V) and ±4% for the 5V output. The quiescent current consumption of the TPS76730QPWPR is very low (in the order of tens of micro amperes). The low quiescent current and high output voltage accuracy makes this device suitable for use in battery-powered and portable products.The TPS76730QPWPR is a fold-cascode linear voltage regulator with a three-terminal integrated output voltage monitoring feature which provides a regulated output voltage determined by a resistive divider at the VREF pin. Internally the voltage regulator uses a PMOS pulldown transistor for load disconnect and an NPN transistor for reverse-current protection.The current fold-cascode combination of pass transistors is an effective method of delivering a low-dropout voltage regulator with high-load and transient response capabilities. The output current is regulated by the PMOS pulldown transistor and the output voltage is maintained by the feedback loop around the NPN cascode transistors. In the event of a short, the output voltage is limited by the resistor divider divider, making the device short-circuit proof.In conclusion, the TPS76730QPWPR is a high-performance and reliable low dropout linear voltage regulator which is suitable for powering sensitive components such as microcontrollers, embedded systems, and consumer electronics. Its impressive accuracy and low quiescent current make it perfect for use in battery-powered and portable products, and its three-terminal integrated output voltage monitoring feature makes it safe from short-circuits.

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