LTC3638EMSE#TRPBF

LTC®3638 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. This can supply up to 250mA 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. Its 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. 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 industrial control supplies, medical devices, distributed power systems, portable instruments, battery-operated devices, avionics, automotive.

• Wide operating input voltage range from 4V to 140V, internal low resistance power MOSFET
• No compensation required, low dropout operation is 100% duty cycle
• Low quiescent current is 12µA, wide output range from 0.8V to VIN
• 0.8V ±1% feedback voltage reference, precise RUN pin threshold
• Internal or external soft-start, few external components required
• Programmable input overvoltage lockout
• Feedback pin current is 10nA maximum (VFB=1V, VPRG1=VPRG2=0V)
• VIN undervoltage lockout range from 3.5 to 4V (VIN rising, TA=25°C. VIN=12V)
• 16-lead plastic MSOP package
• Temperature rating range from -40°C to 125°C

Poznámky

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