LTC3543
600mA Synchronous Step Down Buck
Regulator with PLL, Soft-Start and Spread Spectrum
FEATURES
DESCRIPTION
n 600mA Output Current n 2.
5V to 5.
5V Input Voltage Range n 2.
25MHz Constant-Frequency Operation, Spread
Spectrum or Synchronized PLL (1MHz to 3MHz) n High Efficiency: Up to 95% n 1A Peak Inductor Current n Very Low Quiescent Current: Only 45μA During
Burst Mode Operation n No
Schottky Diode Required n Low Dropout Operation: 100% Duty Cycle n Overtemperature Protected n Stable with Ceramic Capacitors n Shutdown Mode Draws 1μA Supply Current n ±2% Output Voltage Accuracy n Current Mode Operation for Excellent Line and Load
Transient Response n Soft-Start n Available in a Low Pr...