LT1942EUF#TRPBF

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LT1942EUF#TRPBF Application Field and Working Principle

The LT1942EUF#TRPBF is a special purpose PMIC voltage regulator, designed specifically to enable low noise, low impedance power supplies. It is also designed to ensure efficient conductor usage and low energy consumption. Typical applications of the LT1942EUF#TRPBF include video processing, high-definition video applications, wireless communications and other high-performance applications that require low noise and higher power efficiency.

Features

• Wide input voltage range from 2.5V to 50V
• DC-DC high-frequency switching
• Low noise, low impedance power supply output
• High power efficiency over a wide range of input voltages
• Designed for audio, video and other high-performance applications

PRMICE – Voltage Regulators – Special Purpose (LT1942EUF#TRPBF)

The LT1942EUF#TRPBF is a high-performance, special purpose PMIC voltage regulator. The regulator is designed with a proprietary internal high frequency switch mode power supply (SMPS) architecture to operate over a wide input voltage range of 2.5V–50V with low output noise and low output impedance. It provides efficient utilization of the input voltage with as little as 10.8mV/V output voltage when operating from a 20V input and 9.5mV/V from a 40V input. It offers a wide power input-to-output range with low quiescent current for lower power consumption. In addition, it offers a wide operating ambient temperature range from -40°C to +85°C.

Working Principle

The LT1942EUF#TRPBF employs a patented hybrid voltage regulator architecture consisting of a linear-dropout regulator, a temperature-stabilized low dropout (LDO) regulator and a low output noise voltage reference. The hybrid regulator is combined with a synchronous boost converter to provide high efficiency conversions over a wide input voltage range and load current levels. The device is designed to supply low noise, low impedance power to video processing, high-definition video applications, wireless communication and other high-performance applications. The key features of the synchronous boost converter include high efficiency over a wide load-current range, low noise and low output impedance, over-temperature protection, overload protection and short-circuit protection. The LT1942EUF#TRPBF utilizes a temperature-stabilized LDO regulator to provide very accurate output voltage and low output noise. The LDO regulator is protected from over-temperature conditions, overload and short-circuit conditions. The device also incorporates a low noise voltage reference for precision voltage regulation at the output. The voltage reference is adjusted to provide better stability, accuracy and improved transient response. The device also includes adjustable output reset for improved power-up accuracy.

Conclusion

The LT1942EUF#TRPBF is a special purpose PMIC voltage regulator, designed to provide low noise, low impedance power supply output to a wide range of applications, such as video processing, high definition video, wireless communication and other high-performance applications. The device features a wide input voltage range of 2.5V to 50V, a wide power input-to-output range and low quiescent current for lower power consumption. It also features a synchronous boost converter and a temperature-stabilized LDO regulator to ensure high power efficiency, low output noise and low output impedance. The voltage reference is designed to provide improved stability, accuracy and transient response. The LT1942EUF#TRPBF is ideal for applications where precise power control and low output noise are required.

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