LTC3622IDE#PBF

LINEAR TECHNOLOGY  LTC3622IDE#PBF  芯片, 17V, 双路, 1A, 同步, 降压

The is a dual 1A output high efficiency synchronous monolithic Step-down Regulator capable of operating from input supplies up to 17V. The switching frequency is fixed to 1MHz with a ±50% synchronization range to an external clock. The regulator features ultralow quiescent current and high efficiency over a wide output voltage range. The step-down regulators operate from an input voltage range of 2.7 to 17V and provide an adjustable output from 0.6V to VIN while delivering up to 1A of output current. A user-selectable mode input is provided to allow the user to trade off ripple noise for light load efficiency. Burst Mode® operation provides the highest efficiency at light loads, while pulse-skipping mode provides the lowest ripple noise. The switching regulators can be synchronized to an external clock. Furthermore, fixed VOUT options are available to eliminate the external feedback resistors.

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Up to 95% Efficiency

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High efficiency, low dropout operation 100% duty cycle

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±1% Output voltage accuracy

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Current mode operation for excellent line and load transient response

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Phase shift programmable with external clock

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Selectable current limit

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Internal compensation and soft-start