FAN8303MX

FAIRCHILD SEMICONDUCTOR  FAN8303MX  直流-直流开关降压逐步递减稳压器, 可调, 5V-23V输入, 600mV-20V输出, 2A输出, SOIC-8

The is a monolithic non-synchronous step-down buck DC-to-DC Regulator with internal power MOSFETs. It achieves 2A continuous output current over a wide input supply range with excellent load and line regulation. Current-mode operation provides fast transient response and eases loop stabilization. Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown. The regulator draws less than 40µA shutdown current. FAN8303 requires a minimum number of readily available standard external components. External compensation, enable and programmable soft-start features allow design optimization and flexibility. Cycle-by-cycle current limit, frequency foldback and thermal shutdown provide protection against shorted outputs.

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Stable with low ESR output ceramic capacitors

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Thermal shutdown with hysteresis

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Cycle-by-cycle overcurrent protection

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Up to 90% efficiency

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0.22R Internal power MOSFET switch

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<40µA Shutdown current