LTC3632EMS8E#PBF

LTC®3632 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. This can supply up to 20mA load current and features a programmable peak current limit that provides a simple method for optimizing efficiency in lower current applications. The LTC3632’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. Additionally, this includes a precise run threshold and soft-start feature to guarantee that the power system start-up is well-controlled in any environment. Typical applications are 4mA to 20mA current loops, industrial control supplies, distributed power systems, portable instruments, battery-operated devices, automotive power systems.

• Overvoltage lockout provides protection up to 60V
• Internal high side and low side power switches, no compensation required
• 20mA output current, low dropout operation is 100% duty cycle
• Wide output voltage range from 0.8V to VIN, 0.8V ±1% feedback voltage reference
• Adjustable peak current limit, internal and external soft-start
• Precise RUN pin threshold with adjustable hysteresis, few external components required
• Input voltage operating range from 4.5 to 50V
• DC supply current is 220µA maximum (active mode)
• Feedback pin current is 10nA (VFB=1V)
• 8-lead plastic MSOP package, -40°C to 125°C temperature range

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