_____________________Pin Description

NAME

FUNCTION

1

C1-

Negative Terminal of the Flying Boost

Capacitor

2

C2+

Positive Terminal of the Flying

Inverting Capacitor

PIN

3

C2-

Negative Terminal of the Flying

Inverting Capacitor

4

V-

Output of the Inverting Charge Pump

8

C1+

Positive Terminal of the Flying Boost

Capacitor

7

V+

Output of the Boost Charge Pump

6

IN

Positive Power-Supply Input

5

GND

Ground

MAX865

C1+

C1-

3.3

µF

3.3

µF

3.3

µF

3.3

µF

C2+

C2-

OUT+

OUT-

V-

V+

IN

GND

Figure 1. Test Circuit

Compact, Dual-Output Charge Pump

4

_______________________________________________________________________________________

____________________________Typical Operating Characteristics (continued)

10

µs/div

OUTPUT RIPPLE

(C1 = C2 = C3 = C4 = 1

µF)

V- OUTPUT

20mV/div

V+ OUTPUT

50mV/div

10

µs/div

OUTPUT RIPPLE

(C1 = C2 = C3 = C4 = 3.3

µF)

V- OUTPUT

10mV/div

V+ OUTPUT

10mV/div