LTC7138IMSE#PBF

LTC7138 is a high efficiency step-down DC/DC regulator with internal power switch that draws only 12μA typical DC supply current while maintaining a regulated output voltage at no load. It can supply upto 400mA load current and features a programmable peak current limit that provides a simple method for optimizing efficiency and for reducing output ripple and component size. This device’s combination of Burst Mode® operation, integrated power switch, low quiescent current, and programmable peak current limit provides high efficiency over a broad range of load currents. With its wide input range of 4V to 140V and programmable overvoltage lockout, this device is a robust regulator suited for regulating from a wide variety of power sources. It is widely used in application such as industrial control supplies, medical devices, distributed power systems, portable instruments, battery-operated devices, avionics, automotive etc.

• Internal low resistance power MOSFET
• No compensation required, precise RUN pin threshold
• Low quiescent current is 12µA typical
• Wide output range is 0.8V to VIN
• 0.8V typical feedback voltage reference
• Internal or external soft-start, programmable input overvoltage lockout
• Programmable 1.8V, 3.3V, 5V or adjustable output
• Few external components required
• Operating junction temperature is -40°C to 125°C
• Package style is 16-lead plastic MSOP