LTC3523-2 : Synchronous 600mA (ISW) Boost & 400mA (IOUT) Buck Regulator with 2.4MHz Switching Frequency in a 3mm x 3mm QFN
Submitted by Ionela on Tue, 03/25/2008 - 08:51.
 |
MILPITAS, CA March 24, 2008 Linear Technology Corporation announces the LTC3523/-2, a combination of a 600mA (ISW) synchronous boost and a 400mA (IOUT) synchronous buck regulator in a 3mm x 3mm QFN-16 package. Both the boost and the buck regulators switch at 2.4MHz in the LTC3523-2 (1.2MHz for the LTC3523), and use current mode, synchronous topologies. The LTC3523/-2 operate from an input voltage range of 1.8V to 5.5V, making them appropriate for single cell Li-Ion/Polymer or dual-cell alkaline/NiMH applications. In particular, the combination of a buck and a boost makes it ideal for dual-cell alkaline applications, in which a processor 3.3V I/O rail and a 1.2V (or lower) VCORE rail are required. |
