LTC3642IMS8E#PBF

LTC3642 is a high efficiency, high voltage step-down DC/DC converter with internal high side and synchronous power switches that draws only 12μA typical DC supply current at no load while maintaining output voltage regulation. It can supply upto 50mA load current and features a programmable peak current limit that provides a simple method for optimizing efficiency in lower current applications. This device’s combination of Burst Mode® operation, integrated power switches, low quiescent current, and programmable peak current limit provides high efficiency 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, it is a robust converter suited for regulating a wide variety of power sources. It is widely used in application such as 4mA to 20mA current loops, industrial control supplies, distributed power systems, portable instruments, battery-operated devices, automotive power systems.

• Tolerant of 60V input transients, no compensation required
• Internal high side and low side power switches
• Low quiescent current is 12µA typical
• 0.8V typical feedback voltage reference
• Adjustable peak current limit, internal and external soft-start
• Precise RUN pin threshold with adjustable hysteresis
• 3.3V, 5V and adjustable output versions
• Only three external components required for fixed output versions
• Operating junction temperature is -40°C to 125°C
• Package style is 8-lead plastic MSOP

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party