特点
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 V
BATT(MIN)
Hot SwapTM Output for Memory Cards
All Outputs Discharged to Ground During Shutdown
Power Supply Sequencing:
Accurate USB Current Limiting
High Frequency Operation: 1MHz
High Efficiency: Up to 92%
Small (4mm × 4mm × 0.75mm) 24-Pin QFN Package
典型应用
典型应用
描述
The Main and Core switchers are all high efficiency, 1MHz fixed frequency PWM converters. Availability in a small (4mm × 4mm × 0.75mm) 24-pin QFN package makes the LTC3456 ideal for space-sensitive portable devices.