LM2623

Product Folder Order Now Technical Documents Tools & Software Support & Community LM2623 SNVS188I – MAY 2004 – REVISED OCTOBER 2017 LM2623 General-Purpose, Gated-Oscillator-Based DC-DC Boost Converter 1 Features 1 Good Efficiency Over a Very Wide Load Range Very Low Output Voltage Ripple Up to 2-MHz Switching Frequency 0.8-V to 14-V Operating Voltage 1.1-V Start-up Voltage 1.24-V to 14-V Adjustable Output Voltage Up to 2-A Load Current at Low Output Voltages 0.17-Ω Internal MOSFET Up to 90% Regulator Efficiency 80-µA Typical Operating Current (Into VDD Pin of Supply) < 2.5-µA Ensured Supply Current In Shutdown Small 8-Pin VSSOP Package (Half the Footprint of Standard 8-Pin SOIC Package); 1.09-mm Package Height 4-mm × 4-mm Thermally Enhanced WSON Package Option 2 Applications Cameras, Pagers and Cell Phones PDAs, Palmtop Computers, GPS devices White LED Drive, TFT, or Scanned LCDs Flash Memory Programming Hand-Held Instruments 1, 2, 3, or 4 Cell Alkaline Systems 1, 2, or 3 Cell Lithium-ion Systems 3 Description The LM2623 is a high-efficiency, general-purpose, step-up DC-DC switching regulator for batterypowered and low input voltage systems. It accepts an input voltage between 0.8 V and 14 V and converts it into a regulated output voltage between 1.24 V and 14 V. Efficiencies up to 90% are achievable with the LM2623. In order to adapt to a number of applications, the LM2623 allows the designer to vary the output voltage, the opera...