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
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