LTC3548A
Dual Synchronous 400mA/800mA, 2.
25MHz Step-Down DC/DC
Regulator
FEATURES
DESCRIPTION
n High Efficiency: Up to 95% n Low Ripple (35mVP-P) Burst Mode Operation;
IQ = 40μA n 2.
25MHz Constant Frequency Operation n High Switch Current: 0.
7A and 1.
2A n No
Schottky Diodes Required n Low RDS(ON) Internal Switches: 0.
35Ω n Current Mode Operation for Excellent Line
and Load Transient Response n Short-Circuit Protected n Low Dropout Operation: 100% Duty Cycle n Ultralow Shutdown Current: IQ 1μA n Output Voltages from 5V down to 0.
6V n Power-On Reset Output n Externally Synchronizable Oscillator n Optional External Soft-Start n Small Thermally Enhanced MSOP and 3mm × 3mm
DFN Packages
APPL...