High-current, high-accuracy and low-noise ldo voltage regulator

This post is sponsored by Texas Instruments. The low-noise, low-dropout linear regulator, TPS7A85, available from Texas Instruments, is capable of sourcing 4A with only 240mV of maximum dropout. The device output voltage is pin-programmable from 0.8V to 3.95V and adjustable from 0.8V to 5V using an external resistor divider. The combination of low-noise, high-PSRR, and high output current capability makes it ideal for power noise-sensitive components such as those found in high-speed communications, video, medical, or test and measurement applications. The high performance limits power-supply-generated phase noise and clock jitter, making this device ideal for powering high-performance serializer and deserializer, analog-to-digital converters, digital-to-analog converters, and RF components. Specifically, RF amplifiers benefit from the high-performance and 5V output capability of the device. For digital loads, such as application-specific integrated circuits, field-programmable gate arrays, and digital signal processors, requiring low-input voltage, low-output voltage operation, the exceptional accuracy, remote sensing, excellent transient performance, and soft-start capabilities of the regulator ensure optimal system performance. TI say, the versatility of the TPS7A85 makes the device a component of choice for many demanding applications.