MAX829 ONSEMI [ON Semiconductor], MAX829 Datasheet - Page 11

• Manufacturer Part Number: MAX829
• Description: Switched Capacitor Voltage Converter
• Manufacturer: ONSEMI [ON Semiconductor]

the forward voltage drop of each external diode. The performance characteristics for the above converter are shown below.
Note that curves A and C show the circuit performance with economical 1N4148 diodes, while curves B and D are with lower
loss MBRA120E Schottky diodes.
A single device can be used to construct a positive voltage doubler. The output voltage is approximately equal to 2V
−10.0
−12.0
−14.0
−2.0
−4.0
−6.0
−8.0
0.0
0
Output Voltage vs. Output Current MAX828
Figure 34. Tripler Load Regulation,
10
I
A
B
out
, OUTPUT CURRENT (mA)
V
in
20
+
Curve
A
B
C
D
Figure 36. Positive Output Voltage Doubler
MAX829: Capacitors = 3.3 mF
MAX828: Capacitors = 10 mF
1
2
3
30
V
C
D
in
3.0
3.0
5.0
5.0
T
(V)
MAX828, MAX829
A
OSC
http://onsemi.com
= 25 C
MBRA120E
MBRA120E
1N4148
1N4148
Diodes
40
11
5
4
−10.0
−12.0
−14.0
−2.0
−4.0
−6.0
−8.0
0.0
0
MAX828
R
out
Output Voltage vs. Output Current MAX829
259
251
209
192
+
(W)
Figure 35. Tripler Load Regulation,
MAX829
R
I
10
out
A
B
out
246
237
198
185
, OUTPUT CURRENT (mA)
+
(W)
V
out
20
C
D
30
T
A
= 25 C
in
minus
40