Linear Technology Corporation announces the LTC3525-3.3 and LTC3525-5, 400 mA synchronous step-up DC/DC converters with true output disconnect and inrush current limiting in SC70 packages. They operate from an input voltage range of 1 V to 4.5 V, making them appropriate for single- and multicell alkaline/NiCd/NiMH, as well as Li-Ion applications. The LTC3525-3.3 offers a fixed 3.3 V output whereas the LTC3525-5 has a fixed 5 V output. The LTC3525-3.3 can deliver up to 140 mA of continuous output current from dual AA alkaline cells. The LTC3525-5 can deliver up to 175 mA at 5 V from a 3 V input. Both devices use synchronous rectification to enable efficiencies of up to 95%. Their Burst Mode® operation lowers quiescent current to 7 µA, providing maximum battery run-time in handheld applications. The combination of an SC70 package plus 3 tiny externals provides small solution footprints as required in space constrained applications.
Linear Technology Corporation
Linear Technology Corporation
1630 McCarthy Blvd.
Milpitas, CA, 95035
