ÐͺţºLTC3642IMS8E-5

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High Effi ciency, High Voltage 50mA Synchronous Step-Down Converter

LTC3642IMS8E-5

LTC3642IMS8E-5

LTC3642IMS8E-5

The LTC®3642 is a high effi ciency  step-down  DC/DC converter with internal high side and synchronous power switches that draws only 12ª£A typical DC supply current at no load while maintaining output voltage regulation. The LTC3642 can supply up to 50mA load current and features a programmable peak current limit that provides a simple method for optimizing effi ciency in lower current applications. The LTC3642¡¯s combination of Burst Mode® operation, integrated power switches, low quiescent cur-rent, and programmable peak current limit provides high effi ciency over a broad range of load currents.With its wide 4.5V to 45V input range and internal overvoltage monitor capable of protecting the part through 60V surges, the LTC3642 is a robust converter suited for regulating a wide variety of power sources. Additionally, the LTC3642 includes a precise run threshold and soft-start feature to guarantee that the power system start-up is well-controlled in any environment.

The LTC3642 is available in the thermally enhanced 3mm ¡Á 3mm DFN and MS8E packages