LM3673 Datasheet | National Semiconductor

.. LM3673 2MHz, 350mA Step-Down DC-DC Converter November 2006 LM3673 2MHz, 350mA Step-Down DC-DC Converter General Description The LM3673 step-down DC-DC converter is optimized for powering low voltage circuits from a single Li-Ion cell battery and input voltage rails from 2.7V to 5.5V. It provides up to 350mA load current, over the entire input voltage range. There are several different fixed voltage output options available as well as an adjustable output voltage version ranging from 1.1V to 3.3V. The device offers superior Features and performance for mobile phones and similar portable systems. The LM3673 uses intelligent automatic switching between PWM and PFM for...