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NCV1729SN35T1G
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
P22-P23
NCP1729
www
.onsemi.com
10
+
6
4
2
3
1
OSC
Capacitors = 3.3
m
F
+
+
V
in
5
+
+
−V
out
+
+
Figure 24. Negative Output V
oltage T
ripler
A single device can be used to construct a negative voltage tripler
. The output voltage is approximately equal
to −3.0
V
in
minus 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.
−6.0
I
out
, OUTPUT CURRENT
V
out
, OUTPUT VOL
T
AGE
04
0
30
20
10
50
−10.0
−4.0
−12.0
−8.0
−16.0
−2.0
0
−14.0
Figure 25. T
ripler Load Regulation, Output
V
oltage vs. Output Current
A
B
T
A
= 25
°
C
C
D
A
3.0
1N4148
B
3.0
MBRA120E
Curve
V
in
(V)
All Diodes
247
228
R
out
(
W
)
C
5.0
1N4148
D
5.0
MBRA120E
198
188
NCP1729
www
.onsemi.com
11
+
+
6
4
2
3
1
OSC
Capacitors = 3.3
m
F
+
V
in
5
V
out
Figure 26. Positive Output V
oltage Doubler
A single device can be used to construct a positive voltage doubler
. The output voltage is approximately equal to 2.0 V
in
minus 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.
10.0
8.0
6.0
4.0
2.0
0
I
out
, OUTPUT CURRENT (mA)
V
out
, OUTPUT VOL
T
AGE (V)
02
0
10
30
40
Figure 27. Doubler Load Regulation, Output
V
oltage vs. Output Current
A
B
T
A
= 25
°
C
C
D
A
3.0
1N4148
B
3.0
MBRA120E
Curve
V
in
(V)
All Diodes
32
25
R
out
(
W
)
C
5.0
1N4148
D
5.0
MBRA120E
24
19.3
NCP1729
www
.onsemi.com
12
+
+
6
4
2
3
1
OSC
Capacitors = 3.3
m
F
+
V
in
5
V
out
+
+
Figure 28. Positive Output V
oltage T
ripler
A single device can be used to construct a positive voltage tripler
. The output voltage is approximately equal to 3.0 V
in
minus
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.
6.0
2.0
4.0
0
8.0
10.0
12.0
14.0
I
out
, OUTPUT CURRENT (mA)
V
out
, OUTPUT VOL
T
AGE (V)
03
0
20
10
50
Figure 29. T
ripler Load Regulation, Output
V
oltage vs. Output Current
A
B
T
A
= 25
°
C
C
D
A
3.0
1N4148
B
3.0
MBRA120E
Curve
V
in
(V)
All Diodes
11
0
95
R
out
(
W
)
C
5.0
1N4148
D
5.0
MBRA120E
88
78
40
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
P22-P23
NCV1729SN35T1G
Mfr. #:
Buy NCV1729SN35T1G
Manufacturer:
ON Semiconductor
Description:
Inverters SW CAP VOLTAGE INVER
Lifecycle:
New from this manufacturer.
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