LT8697IUDD#PBF

LINEAR TECHNOLOGY  LT8697IUDD#PBF  直流-直流开关降压逐步递减稳压器, 可调, 5V-42V输入, 5V-5.25V输出, 2.5A输出, QFN-24

The is a compact high-efficiency high-speed synchronous monolithic step-down Switching Regulator designed to power 5V USB applications. A precise output voltage and programmable cable drop compensation maintain accurate 5V regulation at the USB socket connected to the end of a long cable. Forced continuous operation allows the LT8697 to sink current, further enhancing accurate 5V regulation during load transients. Accurate and programmable output current limit, a power good indicator pin and an output current monitor pin improve system reliability and safety, allow the user to implement latch-OFF or auto-retry functionality and can eliminate the need for a USB switch IC. Dual feedback allows regulation on the output of a USB switch and limits cable drop compensation to a maximum of 5.8V output, protecting USB devices during fault conditions. Thermal shutdown provides additional protection by limiting power dissipation in the IC during an over-temperature fault.

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Programmable cable drop compensation

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Programmable output current limit

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Output current monitor

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Dual input feedback permits regulation on output of USB switch

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Forced continuous mode for fast load step response

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Accurate 5V output - ±1.3% Over full temperature range

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450mV at 2.1A Low dropout under all conditions

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45ns Fast minimum switch-ON time