LF50CDT-TR Integrated Circuits (ICs)

The LF50CDT-TR voltage regulator is a long form version of the Standard linear voltage regulator module released by Texas Instruments in 2019. It is an adjustable low dropout linear regulator that operates from an input voltage of 1.2V and is capable of delivering up to 500mA of load current.

The LF50CDT-TR is part of Texas Instruments’ PMIC family of linear voltage regulators and is used for a variety of applications, including personal and embedded electronics, power management applications, and industrial automation, etc.

At its core, the LF50CDT-TR is a reliable 3-terminal linear regulator that is designed to regulate an output voltage of 1.215V to 36V. It features an adjustable output voltage, fast transient response, low output voltage noise, and a selectable crystal-less spread spectrum modulation mode that greatly improves efficiency at lower loads.

The LF50CDT-TR’s maximum operating current is determined by the chosen output voltage, with a maximum of 1.2A at 3.3V, 0.9A at 5V, and 500mA at 3.3V, 5V, 9V, 12V, 15V, 18V, 24V, and 36V outputs.

Internally, the LF50CDT-TR utilizes a precision band-gap reference, error amplifier, and CMOS drive circuitry for improved thermal performance and will typically remain in regulation even if an output capacitor is absent. It also includes a power-on reset circuit and adjustable soft start/soft stop timer.

The LF50CDT-TR is equipped with an adjustable current sense threshold, which is ideal for applications that require low quiescent current and fast transient response. It also features advanced over voltage protection and optional features such as current limiting, over temperature protection, and output voltage monitoring.

The LF50CDT-TR is available in both TO-220 and TO-263 packages and is rated at an operating temperature range of -40°C to +85°C. It also meets the requirements of the industrial temperature range of -40°C to +125°C.

In summary, the LF50CDT-TR is an adjustable linear voltage regulator that offers an economical solution for powering low voltage applications. It is suitable for a variety of applications including power management, embedded electronics, and industrial automation. With an adjustable current sense threshold and optional features, the LF50CDT-TR provides the perfect solution for low quiescent current, fast transient response, and reliable voltage regulation.