LTC1474CS8-5#PBF

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The LTC1474CS8-5#PBF is a multi-phase dual-output synchronous PWM step-down DC/DC converter power module. It has been designed for high performance, low noise operation and provides accurate regulation for two independent outputs. The LTC1474CS8-5#PBF is capable of supplying up to 8A of output current from each phase with a high efficiency rate. The two outputs are adjustable from 0.78V to 5V at 0.1V increments, and the maximum output voltage is limited to 28V.

The LTC1474CS8-5#PBF requires a single input voltage between 6V and 36V, and it can supports input voltages up to 40V. The device features adjustable PWM frequency, programmable loop compensation, line regulation, and input undervoltage lockout (UVLO). With the UVLO feature, the output is disabled when the input is below the under-voltage level, so that the core voltage remains below the specified level. The device includes a variety of protection features including junction temperature protection and load current limit.

The working principle of the LTC1474CS8-5#PBF employs a double Boost-Flyback (BFB). The double BFB topology consists of two separate buck converters operating in parallel, and each converter can be independently enabled by the enable pin. The parallel buck converters create two separate voltage outputs which can be adjusted between 0.78 and 5V. The BFB topology requires a high-frequency PWM signal for control, and the LTC1474CS8-5#PBF employs a synchronous rectified PWM mode, as opposed to the standard linear PWM mode which is less efficient.

The LTC1474CS8-5#PBF has a wide range of applications, from powering small boards to providing power for automotive modules and satellites. The device is specially designed to comply with the strict requirements of the Automotive Electronics Council (AEC). With its low noise operation, high efficiency, and adjustable range, it is ideal for powering mobile and embedded systems, as well as powering digital and analog ICs and circuits. Additionally, the device provides flexibility in terms of voltage and current limit, making it suitable for a variety of applications.

In summary, the LTC1474CS8-5#PBF is a multi-phase dual-output synchronous PWM step-down DC/DC converter power module with a wide range of applications and features. Its high efficiency, adjustable range, and low noise operation make it suitable for powering embedded systems, automotive modules, and digital and analog ICs and circuits. Additionally, it provides programmable loop compensation, line regulation and input undervoltage lockout protection, ensuring safe and superior performance.

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