Date: 12/09/2006

Linear’s 2.25 MHz DC/DC converter takes input from multiple battery chemistries and deliver 300mA output current per channel at max efficiency of 96%

This low profile DC/DC converter provide 2 channels of DC source down to 0.6 V with an input voltage range of 2.5V to 5.5V from battery sources such as single cell Li-ion/Polymer, or mutlicell alkaline, NiCd, NiMH. At 2.25 MHz switching frequency, low cost and small ceramic capacitors and 1mm inductors are enough.

Other key features are,
Quiescent current of only 40 micro Amps.
Max. output voltage of Vin due to 100% duty cycle
Soft start for each channel
Shutdown Current: IQ < 1uA
Short Circuit protected