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參數資料
| 型號： | MAX828SNTR |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩壓器 |
| 英文描述： | Switched Capacitor Voltage Converters |
| 中文描述： | SWITCHED CAPACITOR CONVERTER, 20 kHz SWITCHING FREQ-MAX, PDSO5 |
| 封裝： | PLASTIC, SOT-23, 5 PIN |
| 文件頁數： | 8/18頁 |
| 文件大小： | 158K |
| 代理商： | MAX828SNTR |
MAX828, MAX829
http://onsemi.com
8
The MAX828 / 829 primary function is a voltage inverter. The device will convert 5.0 V into 5.0 V with light loads. Two
capacitors are required for the inverter to function. A third capacitor, the input bypass capacitor, may be required depending
on the power source for the inverter. The performance for this device is illustrated below.
0
0.0
3.0
20
10
4.0
6.0
30
50
I
out
, OUTPUT CURRENT (mA)
Figure 25. Voltage Inverter Load Regulation
Output Voltage vs. Output Current MAX828
V
o
,
T
A
= 25
°
C
I
out
, OUTPUT CURRENT (mA)
Figure 26. Voltage Inverter Load Regulation
Output Voltage vs. Output Current MAX829
V
o
,
T
A
= 25
°
C
5.0
2.0
1.0
40
0
0.0
3.0
20
10
4.0
6.0
30
50
5.0
2.0
1.0
40
V
in
= 3.3 V
V
in
= 5.0 V
V
in
= 3.3 V
V
in
= 5.0 V
5
4
2
3
1
OSC
MAX828 Capacitors = 10 F
MAX829 Capacitors = 3.3 F
V
in
5
4
2
3
1
OSC
+
+
+
Figure 27. Cascade Devices for Increased Negative Output Voltage
+
+
V
out
Two or more devices can be cascaded for increased output voltage. Under light load conditions, the output voltage is
approximately equal to V
in
times the number of stages. The converter output resistance increases dramatically with each
additional stage. This is due to a reduction of input voltage to each successive stage as the converter output is loaded. Note that
the ground connection for each successive stage must connect to the negative output of the previous stage. The performance
characteristics for a converter consisting of two cascaded devices are shown below.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX829 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Switched Capacitor Voltage Converter |
| MAX829C/D | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Switched-Capacitor Voltage Inverters |
| MAX829C/D DIE | 制造商:Maxim Integrated Products 功能描述: |
| MAX829EUK | 功能描述:電荷泵 Switched Cap Voltage RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| MAX829EUK+ | 制造商:Maxim Integrated Products 功能描述:CHG PUMP INV -5.5V TO -1.5V 25MA 5PIN SOT-23 - Rail/Tube |
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