5Pcs LM2662 Switching Voltage Converter 1.5V~5.5V Switch Regulator Positive Pressure to Negative Pressure Voltage Reversal Module Power Converter Module Board

The LM2662 CMOS charge-pump voltage converter inverts a positive voltage in the range of 1.5 V to 5.5 V to the corresponding negative voltage. The LM2662 uses two low cost capacitors to provide 200 mA of output current without the cost, size, and EMI related to inductor based converters. With an operating current of only 300 A and operating efficiency greater than 90% at most loads, the LM2662 provides ideal performance for battery powered systems. The LM2662 may also be used as a positive voltage doubler. The oscillator frequency can be lowered by adding an external capacitor to the OSC pin.

Also, the OSC pin may be used to drive the L M2662 with an exteral clock. For LM2662, a frequency control (FC) pin selects the oscillator frequency of 20 kHz or 150 kHz.