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LM2682MMX Scheda tecnica(PDF) 1 Page - National Semiconductor (TI) |
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LM2682MMX Scheda tecnica(HTML) 1 Page - National Semiconductor (TI) |
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1 / 7 page  LM2682 Switched Capacitor Voltage Doubling Inverter General Description The LM2682 is a CMOS charge-pump voltage inverter ca- pable of converting positive voltage in the range of +2.0V to +5.5V to the corresponding doubled negative voltage of −4.0V to −11.0V respectively. The LM2682 uses three low cost capacitors to provide 10 mA of output current without the cost, size, and EMI related to inductor based circuits. With an operating current of only 150 µA and an operating ef- ficiency greater than 90% with most loads, the LM2682 pro- vides ideal performance for battery powered systems. The LM2682 offers a switching frequency of 6 kHz. Features n Inverts then doubles input supply voltage n Small MSOP-8 package (mini SO-8) and SO-8 package n 90 Ω typical output impedance n 94% typical power efficiency at 10 mA Applications n LCD contrast biasing n GaAs power amplifier biasing n Interface power supplies n Handheld instrumentation n Laptop computers and PDAs Typical Operating Circuit and Pin Configuration Ordering Information Order Number Package Package Number Package Marking Supplied As LM2682MM MSOP-8 MUA08A S11A Tape and Reel (1000 units/reel) LM2682MMX MSOP-8 MUA08A S11A Tape and Reel (3500 units/reel) LM2682M SO-8 M08A LM2682M Rail (95 units/rail) LM2682MX SO-8 M08A LM2682M Tape and Reel (2500 units/reel) DS100997-1 8-Pin MSOP or 8-Pin SOIC DS100997-2 November 1999 © 1999 National Semiconductor Corporation DS100997 www.national.com |
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