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Description

The LTC3245 is a switched capacitor buck-boost DC/DC converter that produces a regulated output (3.3V, 5V or adjustable) from a 2.7V to 38V input.

The device uses switched capacitor fractional conversion to maintain regulation over a wide range of input voltage. Internal circuitry automatically selects the conversion ratio to optimize efficiency as input voltage and load conditions vary.

Application Circut
 

Features : 

1. 2.7V to 38V VIN Range

2. IQ = 18μA Operating; 4μA in Shutdown

3. 12V to 5V Efficiency = 81%

4. Multimode Operation (2:1, 1:1, 1:2) with Automatic Mode Switching

5. Low Noise, Constant Frequency Operation

6. Pin Selectable Burst Mode® Operation