NCP1729 −Vout 1 6 OSC + Vin 2 5 + + 3 4 Capacitors = 3.3 F Figure 18. Voltage Inverter The NCP1729 primary function is a voltage inverter. The device will convert 5.0 V into −5.0 V with light loads. Two capacitors are required for the inverter to function. A third capacitor, the input bypass capacitor, may be required depending on the power source for the inverter. The performance for this device is illustrated below. 0 TA = 25°C −1.0 AGE (V) −2.0 Vin = 3.3 V T −3.0 Vin = 5.0 V −4.0 , OUTPUT VOL outV −5.0 −6.0 0 10 20 30 40 50 Iout, OUTPUT CURRENT (mA) Figure 19. Voltage Inverter Load Regulation,Output Voltage vs. Output Currenthttp://onsemi.com7