LTC3548EDD-2#PBF

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The LTC3548EDD-2#PBF is a member of the POL (Point-of-Load) DC/DC Switching Regulators family, designed for use in mobile and automotive applications. It supports a wide range of voltages and is designed to provide a high-efficiency power solution that is easy to implement. The LTC3548EDD-2#PBF can be used to create tiny, low-profile solutions that require only a single input power source.

The LTC3548EDD-2#PBF is a high-efficiency, ultra-low-input, high-input-voltage (2.7 to 28 V) buck converter. It integrates an adjustable current, low dropout (LDO) regulator with an integrated P-channel MOSFET, enabling a high-efficiency solution with a wide input voltage range. The integrated LDO can be used to supply a logic supply, an internal bias supply, or an external load. This low-cost device offers excellent rectification efficiency and voltage accuracy.

Applications of the LTC3548EDD-2#PBF include mobile and consumer equipment, automotive, and industrial applications. The LTC3548EDD-2#PBF is designed to power low voltage outputs such as DVD players, cameras, PDAs, and cell phones. Its low power dissipation and excellent regulation characteristics also make it an ideal choice for industrial applications such as motor control, power supplies, and AC/DC converters.

The working principle of the LTC3548EDD-2#PBF is based on the single-switch buck-boost architecture. It operates by transitioning between buck and boost modes in order to convert a wide input voltage range onto a smaller output voltage range. The device switches at a fixed frequency and uses synchronous rectification to minimize power dissipation. A digital core with an integrated P-channel switch and control circuitry enables a fast response to line and/or load changes.

To maximize efficiency, the LTC3548EDD-2#PBF uses a proprietary wide input voltage startup scheme. The device can start from input voltages as low as 1 V, enabling solutions that can operate with minimum power. The LTC3548EDD-2#PBF\'s power-saving features include an integrated level-shifter for I2C port and automatic voltage selection for minimum power consumption.

The LTC3548EDD-2#PBF is a highly integrated variable voltage buck regulator. It provides tight DC voltage regulation and fast transient response. It offers a wide input voltage range, adjustable output voltage, programmable switching frequency, and low start-up current. The device also features incorporation of a high-current input, low dropout (LDO) regulator with integrated P-channel MOSFET. Its low-power performance and high efficiency make it an excellent choice for a wide variety of applications.

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