DC1611A

LINEAR TECHNOLOGY  DC1611A  演示板, LTC3604 降压稳压器

demonstration board is to evaluate the performance of the LTC3604 regulator. It"s a high efficiency, 4MHz synchronous buck regulator that incorporates a unique constant frequency/controlled on time, current mode architecture. The DC1611A has a maximum input voltage 15V, and is capable of delivering up to 2.5A of output current at a minimum input voltage of 3.6V. The output voltage of the DC1611A can be set as low as 0.6V, the reference voltage of the LTC3604. At low load currents, the DC1611A operates in discontinuous mode, and during shutdown, it consumes less quiescent current. In continuous mode operation, the DC1611A is a high efficiency circuit over 80%. The DC1611A can track another voltage with the LTC3604 track function. Because of the high switching frequency of the LTC3604, which is programmable up to 4 MHz, the DC1611A uses low profile surface mount components.

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Up to 95% efficiency

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Very low duty cycle operation

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External frequency synchronization

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Current mode operation for excellent line and load transient response

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Burst mode operation and forced continuous mode

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Short circuit protected

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Output voltage tracking capability

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Power good status output