參數(shù)資料
型號(hào): MAX1720
廠商: ON SEMICONDUCTOR
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: Switched Capacitor Voltage Inverter with Shutdown(帶關(guān)斷功能的開(kāi)關(guān)電容電壓反相器)
中文描述: SOT23封裝、開(kāi)關(guān)電容電壓反相器,帶有關(guān)斷
文件頁(yè)數(shù): 10/18頁(yè)
文件大?。?/td> 182K
代理商: MAX1720
MAX1720
http://onsemi.com
10
+
+
6
4
2
3
1
OSC
Capacitors = 10 F
+
V
in
5
V
out
+
+
Figure 28. Positive Output Voltage Tripler
A single device can be used to construct a positive voltage tripler. The output voltage is approximately equal to 3V
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
o
,
0
30
20
10
40
Figure 29. Tripler Load Regulation, Output Voltage 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
111
97
R
out
( )
C
5.0
1N4148
D
5.0
MBRA120E
85
75
+
6
4
2
3
1
OSC
+
V
in
5
V
out
+
Figure 30. Load Regulated Negative Output Voltage
Capacitors = 10 F
100 k
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