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Product Information
Product Overview
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
Technical Specifications
Adjustable
Synchronous Buck-Boost
15V
1.5A
14Pins
-
15V
95%
125°C
-
No SVHC (21-Jan-2025)
-
1Outputs
2.5V
1.5A
DFN-EP
Surface Mount
2.5V
800kHz
-40°C
-
MSL 1 - Unlimited
DFN-EP
800kHz
Technical Docs (2)
Legislation and Environmental
Country in which last significant manufacturing process was carried outCountry of Origin:Philippines
Country in which last significant manufacturing process was carried out
RoHS
RoHS
Product Compliance Certificate