ANALOG DEVICES LTC7149EFE#PBF DC-DC Switching Synchronous Buck Regulator, Adjustable, 3.4 to 60V in, 0 to -28V/4A out, TSSOP-EP-28

LTC7149 is a high efficiency 60V, 4A synchronous monolithic step-down regulator for inverting output applications. This regulator features a single resistor programmable output voltage and high efficiency over a wide VOUT range. The inverting regulator operates from an input voltage range of 3.4V to 60V and provides an adjustable output from (�28V) to zero volts while delivering upto 4A of inductor current. The switching frequency is also set with an external resistor. A user-selectable mode input is provided to allow the user to trade off ripple noise for efficiency at light loads; Burst Mode operation provides the highest efficiency at light loads, while forced continuous mode provides low output ripple. It is widely used in application such as industrial applications, telecom power supplies, distributed power systems etc.

• Input quiescent current is 440µA typ
• Shutdown current is 15µA
• Board GND referenced I/O pins (RUN, PGOOD, MODE/SYNC)
• SYNC capture range is 50% to 150%
• 92% efficiency with 12VIN and �5VOUT
• Output voltage accuracy is ±0.8%
• Peak current mode operation
• Programmable soft-start, overtemperature protection
• Operating temperature is -40°C to 125°C
• Packaging style is 28-lead plastic TSSOP

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