LTC3119MPFE#PBF

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The LTC3119MPFE#PBF is part of the family of DC-DC switching regulators from Linear Technology. The LTC3119MPFE#PBF is a low-cost, feature-rich monolithic step-down switching regulator ideal for space constrained applications. The LTC3119MPFE#PBF is integrated with an 800 mA synchronous step-down regulator, a 1A low-side power switch, and an integrated reverse blocking dual N-channel MOSFET. The 1A low-side power switch features a protected high-side power MOSFET that reduces output voltage overshoot during transient conditions. The integrated dual-channel MOSFETs allow for addition of low-profile components for minimal board space, which is critical for mobile applications.

The LTC3119MPFE#PBF application field involves a wide range of applications due to its high efficiency, low cost, and small size. It is a popular choice for low-power applications, such as USB power delivery, LED lighting, and embedded systems. The LTC3119MPFE#PBF is also used in a variety of power management applications, including automotive, industrial, and handheld systems. Powering laptops, cell phones, and tablets, the LTC3119MPFE#PBF system provides power to the mobile world. With an input voltage range of 4V to 20V and an adjustable output voltage as low as 0.8V, the LTC3119MPFE#PBF is ideal for nearly all applications.

The LTC3119MPFE#PBF working principle is based on its high-efficiency, monolithic step-down switching regulator. The LTC3119MPFE#PBF integrates a 1A low-side power switch, an 800 mA synchronous step-down regulator, and an integrated reverse blocking dual N-channel MOSFET. The 1A low-side power switch features a protected high-side power MOSFET that reduces output voltage overshoot during transient conditions. The integrated dual-channel MOSFETs allow for addition of low-profile components for minimal board space, which is critical for mobile applications.

The LTC3119MPFE#PBF is also equipped with a Burst Mode operation that reduces quiescent current to 0.5mA in light load conditions, allowing the device to meet high efficiency standards. The device also includes an external control pin that can be used to enable the device or to force the device into skip mode. It also includes a frequency fold-back feature that reduces the output ripple in a light load. The LTC3119MPFE#PBF also features Cycle-by-Cycle Current Limit, Over-Voltage Protection, Under-Voltage Lockout, and Internal Soft-Start protection. The device is also designed for a low external component count.

Overall, the LTC3119MPFE#PBF is a valuable member of the family of DC-DC switching regulators from Linear Technology. With its high efficiency, low cost, and small size, the LTC3119MPFE#PBF offers the ideal solution for a wide range of applications. Its Burst Mode operation and external control pin offer additional flexibility and protection in various load conditions. The integrated dual-channel MOSFETs enable the addition of low-profile components for minimal board space, making the LTC3119MPFE#PBF a popular choice for mobile applications.

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