LTC3111EDE#PBF

LTC3111 is a fixed frequency, synchronous buck boost DC/DC converter with an extended input and output range. The unique 4-switch, single inductor architecture provides low noise and seamless operation from input voltages above, below or equal to the output voltage. Low RDS(ON) internal N-channel MOSFET switches and selectable PWM or Burst Mode operation produce high efficiency over a wide range of operating conditions. An accurate RUN pin allows the user to program the turn-on threshold voltage of the converter. Other features include: short-circuit protection, internal soft-start and thermal shutdown. It is widely used in application such as 3.3V or 5V from 1, 2 or 3 Li-Ion, multiple-cell, Alkaline/NiMH batteries, RF transmitters, military, industrial power systems etc.

• Input operating voltage range is 2.5V to 15V
• 1.5A continuous output current: VIN ≥ 5V, VOUT = 5V, PWM mode
• Single inductor, accurate RUN threshold
• Upto 95% efficiency
• Frequency is 800KHz typical, SYNC frequency range is 600KHz to 1500KHz
• 49µA no-load quiescent current in Burst Mode® operation
• Output disconnect in shutdown
• Shutdown current is <lt/> 1µA, internal soft-start
• Operating temperature is -40°C to 125°C
• Packaging style is 14-lead plastic DFN

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