MAX865 Maxim, MAX865 Datasheet - Page 4

• Manufacturer Part Number: MAX865
• Description: Compact / Dual-Output Charge Pump
• Manufacturer: Maxim

_____________________Pin Description
Compact, Dual-Output Charge Pump
(Circuit of Figure 1, V
4
____________________________Typical Operating Characteristics (continued)
PIN
1
_______________________________________________________________________________________
2
3
4
5
6
7
8
V
IN
= 4.75V, 1mA LOAD
NAME
GND
C2+
C1+
C2-
C1-
V+
V-
IN
(C1 = C2 = C3 = C4 = 1 F)
OUTPUT RIPPLE
IN
Negative Terminal of the Flying Boost
Capacitor
Positive Terminal of the Flying
Inverting Capacitor
Negative Terminal of the Flying
Inverting Capacitor
Output of the Inverting Charge Pump
Ground
Positive Power-Supply Input
Output of the Boost Charge Pump
Positive Terminal of the Flying Boost
Capacitor
= 5V, T
10 s/div
A
= +25°C, unless otherwise noted.)
FUNCTION
V- OUTPUT
20mV/div
V+ OUTPUT
50mV/div
Figure 1. Test Circuit
V
IN
V
3.3 F
3.3 F
IN
= 4.75V, 1mA LOAD
(C1 = C2 = C3 = C4 = 3.3 F)
C1-
C2+
C2-
V-
MAX865
OUTPUT RIPPLE
10 s/div
GND
C1+
V+
IN
3.3 F
3.3 F
V- OUTPUT
10mV/div
V+ OUTPUT
10mV/div
I
I
V
V
+
-
R
R
L
L
+
-
OUT+
OUT-