MIC4684YM

MICREL SEMICONDUCTOR  MIC4684YM  直流-直流开关降压稳压器, 可调, 4V-30V输入, 1.235V-28.3V输出, 2A输出, SOP-8

The is a high-efficiency step-down buck Switching Regulator for use with battery charger. Power conversion efficiency of above 85% is easily obtainable for a wide variety of applications. The MIC4684 achieves 2A of continuous current at 60°C ambient temperature. High efficiency is maintained over a wide output current range by utilizing a boost capacitor to increase the voltage available to saturate the internal power switch. As a result of this high efficiency, no external heat sink is required. The MIC4684 allows for a high degree of safety. It has a wide input voltage range of 4 to 30V 34V transient, allowing it to be used in applications where input voltage transients may be present. Built-in safety features include over-current protection, frequency-foldback short-circuit protection and thermal shutdown.

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All surface mount solution

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Internally compensated with fast transient response

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Overcurrent protection

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Frequency foldback short-circuit protection

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Over 85% efficiency