LTC3456 Key Features
- Seamless Transition Between 2-Cell Battery, USB and AC Wall Adapter Input Power Sources
- Main Output: Fixed 3.3V Output
- Core Output: Adjustable from 0.8V to VBATT(MIN)
- Hot SwapTM Output for Memory Cards
- All Outputs Discharged to Ground During Shutdown
- Power Supply Sequencing: Main and Hot Swap
- Accurate USB Current Limiting
- High Frequency Operation: 1MHz
- High Efficiency: Up to 92%
- Small (4mm × 4mm × 0.75mm) 24-Pin QFN Package