Product details


Vin (Min) (V) 2 Vin (Max) (V) 5.5 Vout (Max) (V) -11.6 Iout (Max) (A) 0.01 Regulated outputs (#) 1 Switching frequency (Max) (kHz) 15 Iq (Typ) (mA) 0.15 Operating temperature range (C) -40 to 85 Type Charge Pump Rating Catalog open-in-new Find other Charge pumps (inductorless)

Package | Pins | Size

VSSOP (DGK) 8 15 mm² 3 x 4.9 open-in-new Find other Charge pumps (inductorless)


  • Inverts Then Doubles Input Supply Voltage
  • Small VSSOP Package and SOIC Package
  • 90Ω Typical Output Impedance
  • 94% Typical Power Efficiency at 10 mA

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open-in-new Find other Charge pumps (inductorless)


The LM2682 is a CMOS charge-pump voltage inverter capable 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 efficiency greater than 90% with most loads, the LM2682 provides ideal performance for battery powered systems. The LM2682 offers a switching frequency of 6 kHz.

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Technical documentation

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Type Title Date
* Data sheet LM2682 Switched Capacitor Voltage Doubling Inverter datasheet (Rev. B) May 02, 2013
Technical article Painting a picture for powering high-performance FPGAs Sep. 05, 2013
Technical article Analog Applications Spotlight: Mark Pieper Jun. 06, 2013
Technical article How to choose an LDO or switching regulator May 08, 2013
Technical article Engineer It Video Series: Testing Power Supplies Mar. 26, 2013

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