LTC3118IUFD#PBF

LTC3118 is a dual-input, wide voltage range synchronous buck-boost DC/DC converter with an intelligent, integrated, low loss Power Path control. The unique power switch architecture provides efficient operation from either input source to a programmable output voltage above, below or equal to the input. Voltage capability of upto 18V provides flexibility and voltage margin for a wide variety of applications and power sources. This device uses a low noise, current mode architecture with a fixed 1.2MHz PWM mode frequency that minimizes the solution footprint. For high efficiency at light loads, automatic Burst Mode operation can be selected consuming only 50µA of quiescent current in sleep. It is used in application such as systems with multiple input sources, back up power systems, wall adapter or Li-Ion(s) input to 5VOUT, battery or super capacitor input for reserve power, replace diode-OR designs with higher efficiency, flexibility and performance etc.

• Integrated high efficiency dual input PowerPath™ plus buck-boost DC/DC converter
• Ideal diode or priority VIN select modes
• Input operating voltage range is 2.2V to 18V
• Output operating voltage range is 2V to 18V
• Current mode control, all internal N-channel MOSFETs
• Pin-selectable PWM or Burst Mode® operation, accurate, independent RUN pin thresholds
• VIN and VOUT power good indicators, input quiescent current in shutdown is 2µA typical
• Input quiescent current in burst mode operation is 50µA typical
• Operating temperature is -40°C to 125°C
• Package style is 24-lead plastic QFN

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