LF85CDT-TRY

The LF85CDT-RY is a three-terminal, adjustable output voltage regulator from TOPSwitch that provides improved performance, higher power density and lower cost than conventional linear regulators. With a wide input voltage range, low noise, and excellent transient response and line compensation characteristics, the LF85CDT-RY is suitable for most voltage regulation applications. This article will provide an overview of the device\'s application field and working principles.The LF85CDT-RY is a current-mode, fixed-frequency, pulse-width-modulated (PWM) voltage regulator that combines the benefits of linear and switching regulators. The device optimizes efficiency while still delivering excellent regulation performance. Its wide input voltage range (2.8V to 200V) and operating temperature range (-40°C to +85°C) makes it suitable for a wide variety of applications.The LF85CDT-RY operates by utilizing an internal error amplifier, a PWM comparator, a reference voltage generator, and an adjustable output voltage divider. The error amplifier compares the output voltage to the reference voltage, and drives the output to the set voltage. The PWM comparator compares the error signal with the sawtooth waveform, and generates the pulse width modulated signal. The output voltage is then set by adjusting the voltage divider.The LF85CDT-RY offers an adjustable output from 1.5V to 21V with a maximum output current of 1.5A. The device also includes an under-voltage shutdown feature that prevents the device from operating at potentially dangerous voltages. In addition, the device includes protection against over-current, over-temperature, and as well as other fault conditions.The LF85CDT-RY provides excellent performance over a wide range of line and load conditions. Its high efficiency and low noise makes it suitable for high power and low noise regulated systems. The device provides excellent transient response characteristics and line compensation, making it ideal for demanding applications such as high voltage AC/DC converters and DC/DC converters in industrial and automotive systems.In conclusion, the LF85CDT-RY is a highly versatile and reliable voltage regulator with an adjustable output voltage and excellent performance over a wide range of line and load conditions. Its low cost, high efficiency and wide input voltage range make it ideal for a wide variety of applications.

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