Description
LTC1159 LTC1159-3.3/LTC1159-5 High Efficiency Synchronous Step-Down Switching Regulators U U .
Features
* s Operation from 4V to 40V Input Voltage s Ultrahigh Efficiency: Up to 95% s 20µA Supply Current in Shutdown s High Efficiency Maintained Over Wide Current Range s Current Mode Operation for Excellent Line and Load
Transient Response s Very Low Dropout Operation: 100% Duty Cycle s Short-Circuit Prot
Applications
* Information. Note 5: In applications where RSENSE is placed at ground potential, the offtime increases approximately 40%. 3
LTC1159 LTC1159-3.3/LTC1159-5
ELECTRICAL CHARACTERISTICS
Note 6: The LTC1159C, LTC1159C-3.3, and LTC1159C-5 are not tested and not quality assurance sampled at
* 40°