Description
The LTC®3643 is a bidirectional synchronous stepup charger and step-down converter which efficiently charges a capacitor array up to 40V from an input supply between 3V to 17V.
Features
- nn Bidirectional Synchronous Boost Capacitor Charger/Buck Regulator for System Backup
nn Wide Input Voltage Range: 3V to 17V nn Up to 40V Capacitor Voltage Storage for High
Energy Backup nn 2A Maximum CAP Charge Current nn Integrated Power N-Channel MOSFETs
(150mΩ Top and 75mΩ Bottom) nn Integrated Power N-Channel MOSFET for Output/CAP
Disconnect (50mΩ) nn Input Current Limit During Charging nn Fast 1MHz Switching Frequency nn ±1% Reference Accuracy for System Voltage Regulation nn Indicator Out.
LTC3643-Linear.pdf
