This is one Lot (Qty. 10) of New SIPEX Micro Power Inverting Charge Pump, Part Number: SP682EN/TR in SO-8 Package. It converts input positive voltage to twice of negative voltage. For example at +5V input, the output will be -10V.

• Input Voltage: +2.4V to +5.5V
• Fixed Output Voltage: -2Vin
• Output Current: 10mA
• Efficiency: 99%
• Operating Junction Temp: -40C to +85C
• SO-8 Package

Detail Spec on Web as follows:

http://pdf1.alldatasheet.com/datasheet-pdf/view/45981/SIPEX/SP682EN.html