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LT1432-3.3

Linear Technology
Part Number LT1432-3.3
Manufacturer Linear Technology
Description 3.3V High Efficiency Step-Down Switching Regulator Controller
Published Mar 22, 2005
Detailed Description LT1432-3.3 3.3V High Efficiency Step-Down Switching Regulator Controller FEATURES s s s s s s s s DESCRIPTIO Accurate...
Datasheet PDF File LT1432-3.3 PDF File

LT1432-3.3
LT1432-3.3

Overview
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 board trace material for the sense resistor.
Logic controlled electronic shutdown mode draws only 15µA battery current.
The switching regulator operates down to 4.
5V input.
The LT1432-3.
3 has a logic controlled Burst Mode operation to achieve high efficiency at very light load currents (0mA to 100mA...


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