The LM2623MM is a high-efficiency general-purpose Step-up DC-DC Switching Regulator for battery-powered and low input voltage systems. It accepts an input voltage between 0.8 and 14V and converts it into a regulated output voltage between 1.24 and 14V. Efficiencies up to 90% are achievable with the LM2623. In order to adapt to a number of applications, the regulator allows the designer to vary the output voltage, the operating frequency (300kHz to 2MHz) and duty cycle (17 to 90%) to optimize the part's performance. The selected values can be fixed or can vary with battery voltage or input to output voltage ratio. The regulator uses a very simple, on/off regulation mode to produce good efficiency and stable operation over a wide operating range. It normally regulates by skipping switching cycles when it reaches the regulation limit (Pulse Frequency Modulation).
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