NCP1729

www.onsemi.com

7

6

4

2

3

1

OSC

Capacitors = 3.3

mF

+

+

5

+

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.

Figure 19. Voltage Inverter Load Regulation,

Output Voltage vs. Output Current

0

−2.0

30

−5.0

20

10

−6.0

0

−4.0

−3.0

−1.0

40

50