Datasheet Summary
No RSENSE™, Low Input Voltage, Synchronous Step-Down
DC/DC Controller
Features n No Current Sense Resistor Required n All N-Channel MOSFET Synchronous Drive n High Current Outputs Possible n Constant Frequency Current Mode Operation for
Excellent Line and Load Transient Response n VIN: 2.75V to 4.5V n ±1% 0.6V Reference n Low Dropout Operation: 99% Duty Cycle n Selectable Frequency (300kHz/550kHz/750kHz) n Internal Soft-Start Circuitry n Selectable Maximum Peak Current Sense Threshold n Digital RUN Control Pin n Output Overvoltage Protection n Micropower Shutdown: IQ = 7.5μA n Tiny Thermally Enhanced Leadless (3mm × 3mm)
DFN or 10-Lead MSOP Package
DESCRIPTION
The LTC®3822 is a...