TPS72618KTTT

The TPS72618KTTT is a high-performance low-dropout regulator (LDO) that belongs to Texas Instrument\'s (TI) line-up of linear voltage regulators. Specifically designed for audio applications, the TPS72618KTTT is able to provide up to 150mA of continuous output current with very low noise levels that measure below 25 μV RMS . It has very low quiescent current—around 2 mA typical—and is optimized at a 1.2V output voltage range, making it ideal for powering low-voltage audio systems. The TPS72618KTTT also boasts short-circuit protection and over-temperature protection, making it especially safe against the typical usage scenarios of audio input and output devices.

The TPS72618KTTT is part of the TPS726-series of ultra-low noise, low-dropout voltage regulators from TI. These two-terminal voltage regulators are optimized for low-voltage (1.2 to 6.5V) audio applications, with very low-noise levels (under 25 μV RMS) and up to 150mA continuous output current. The series also incorporates numerous protection features, including: overtemperature protection, over-current protection, and short-circuit protection. Additionally, the series also offers higher efficiency than linear regulators. With up to 94% efficiency at light-load, the TPS72618KTTT guarantees extended battery life in portable applications. The device is also automatically reset when any of these features activate.

The TPS72618KTTT is specifically designed for use in applications where both low noise and high efficiency are required. This makes it especially ideal for powering audio preamps, headphone amplifiers, professional audio systems, and Class-D amplifier power supplies. With its ultra-low noise and high output current capability, the TPS72618KTTT is also a great choice for powering low-voltage ADCs and DACs.

The working principle of the TPS72618KTTT is based on a simple output-feedback loop configuration. The device contains an internal error amplifier (EA) connected between the OUT and REF pins, with the output voltage being regulated by comparing the voltage on the REF pin to the voltage on the OUT pin. The EA is then used to adjust the output voltage by controlling the ON/OFF state of the internal Power MOSFETs in the output stage. The TPS72618KTTT also incorporates a temperature compensation and current limiting circuit, as well as an internal startup FET to ensure that the device starts up and operates safely.

The TPS72618KTTT linear voltage regulator is an ideal solution for any low noise and low-dropout audio applications. It provides up to 150mA continuous output current with very low noise levels, and also offers higher efficiency than linear regulators thanks to its output-feedback loop and power MOSFETs. With its built-in protection features, the TPS72618KTTT is an especially safe choice for powering audio input and output devices.