The TPS7A57 is a low-noise (2.1 μVRMS), ultra-low-dropout linear regulator (LDO) capable of sourcing 5 A with only 100 mV of maximum dropout. Moreover, the dropout is independent of the output voltage when using the internal charge pump. The device output voltage is adjustable from 0.4 V to 5.1 V using a single external resistor. The combination of low noise (2.1 μVRMS), high PSRR (45 dB at 1 MHz), and high output-current capability makes the TPS7A57 an excellent choice to power noise sensitive components such as those found in radar power, communication and imaging applications. The high performance of this device limits power-supply generated phase noise and clock jitter, making this device ideal for power RF amplifiers, radar sensors, and chipsets. Specifically, RF amplifiers benefit from the high performance and 5.0-V output capability of the device. For digital loads [such as application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), and digital signal processors (DSPs)] requiring low-input voltage, low-output (LILO) voltage operation, the exceptional accuracy (1% over load, line and temperature), remote sensing, excellent transient performance, and soft-start capabilities of the TPS7A57 provides optimal system performance. As an adjustable voltage regulator, there is versatility in design of the TPS7A57 that makes the device a component of choice for analog loads such as voltage-controlled oscillator (VCO), analog-to-digital converter (ADC), digital-to-analog converter (DAC), and imaging sensors and for digital loads such as serializer/deserializer (SerDes), field-programmable gate arrays (FPGAs), and digital signal processors (DSPs).