LTC1149CN-3.3#PBF

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Introduction to LTC1149CN-3.3#PBF

The LTC1149CN-3.3#PBF is a DC-DC switching controller that features an integrated programmable current regulator as well as a robust integrated protection circuit. This device is suitable for high-performance and high-power applications. The device\'s switching frequency is selectable and can be programmed for up to 10MHz, making it capable of supplying up to 8A current and managing up to 32V input/output voltages. The device offers an improved current loop response, a wide range of over-current and under-voltage protection, and a soft-start feature.

Application field

The LTC1149CN-3.3#PBF is widely used in high power and high performance applications, including LED lighting, communications, automotive, computer peripherals, audio-video equipment, and power management in audio/video systems. It is also used as a voltage regulator in power converters and a current regulator in motor drive systems. The device is also suitable for use in distributed power systems and multi-output step-down applications.

Working principle

The LTC1149CN-3.3#PBF uses a fixed switching frequency to generate an output voltage. The internal programmable current regulator enables the device to maintain a stable output voltage despite changes in input voltage. The device\'s over-current and under-voltage protection circuit consists of a low-side current limit, over-temperature protection, and a low-voltage lockout. The device also includes a soft-start circuit which enables it to reduce output voltage surge during startup. The device also features an integrated oscillator circuit, allowing users to change the switching frequency between 200kHz and 10MHz.

Conclusion

The LTC1149CN-3.3#PBF is a DC-DC switching controller that is ideal for high power and high performance applications. The device features an integrated programmable current regulator, integrated over-current and under-voltage protection circuit, adjustable switching frequency up to 10MHz, and soft-start circuit. The device is suitable for LED lighting, communications, automotive, computer peripherals, audio-video equipment, and power management in audio/video systems.

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