boost converter

MILPITAS, CA February 14, 2008 Linear Technology Corporation announces the LTC3537, a 2.2MHz, current mode synchronous boost DC/DC converter with integrated output disconnects plus an LDO. The LTC3537's boost converter's internal 600mA switches can deliver output voltages as high as 5.25V from an input voltage range of 0.68V at start-up (0.5V when running) to 5V, making it ideal for Li-Ion/Polymer or single/multicell alkaline/NiMH applications. The LTC3537 can deliver up to 100mA of continuous output current (at 3.3V) from a single alkaline cell or 300mA from a dual cell input. Synchronous rectification enables efficiencies of up to 94% while a 2.2MHz switching frequency minimizes the total solution footprint.

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The FAN5665 Saves 20 Percent Board Space in Portable Applications

FAN5665 Industry%u2019s Smallest 5V/30mA Boost Converter
San Jose, California %u2013 December 27, 2007 %u2013 Fairchild Semiconductor (NYSE: FCS) brings designers an ultra-small boost converter solution for their space-constrained mobile and ultra-portable devices. The FAN5665 is a high efficiency 5V/30mA adaptive charge pump boost converter packaged in a low profile, compact 1.21mm X 1.21mm WL-CSP package, saving over 20 percent board space compared to alternate solutions. For USB enabled devices needing a 5V I/O rail, Fairchild%u2019s FAN5665 provides an optimal %u201Cquick fix%u201D solution. The FAN5665 can also be used to drive keypad LEDs in portable devices. This boost converter features a low 0.625mm (max) profile and does not require a bulky inductor, offering a slim solution for network cards or other thin portable applications.

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