LTC3822
Overview
The LTC®3822 is a synchronous step-down switching regulator controller that drives external N-channel power MOSFETs using few external components. The constant frequency current mode architecture with MOSFET VDS sensing eliminates the need for sense resistors and improves efficiency.
- No Current Sense Resistor Required
- All N-Channel MOSFET Synchronous Drive
- High Current Outputs Possible
- Constant Frequency Current Mode Operation for Excellent Line and Load Transient Response
- VIN: 2.75V to 4.5V n ±1% 0.6V Reference
- Low Dropout Operation: 99% Duty Cycle
- Selectable Frequency (300kHz/550kHz/750kHz)
- Internal Soft-Start Circuitry
- Selectable Maximum Peak Current Sense Threshold
- Digital RUN Control Pin
