LT1432-3.
3 3.
3V High Efficiency Step-Down Switching
Regulator Controller
FEATURES
s s s s s s s s
DESCRIPTIO
Accurate Preset 3.
3V Output Up to 87% Efficiency Optional Burst ModeTM Operation for Light Loads Can Be Used with Many LTC Switching ICs Accurate Ultra-Low-Loss Current Limit Operates with Inputs from 4.
5V to 30V Shutdown Mode Draws Only 15µA Uses Small 30µH Inductor
The LT ®1432-3.
3 is a control chip designed to operate with the LT1171/LT1271 family of switching
regulators to make a very high efficiency 3.
3V step-down (buck) switching
regulator.
A minimum of external components is needed.
Included is an accurate current limit which uses only 60mV sense voltage and uses “free” PC ...