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參數(shù)資料
| 型號： | AIC1653CVBG |
| 廠商： | Analog Integrations Corporation |
| 英文描述： | Micropower Inverting DC/DC Converter in SOT-23-5 |
| 中文描述： | 微反向直流/直流轉換器采用SOT - 23 - 5 |
| 文件頁數(shù)： | 9/11頁 |
| 文件大?。?/td> | 225K |
| 代理商： | AIC1653CVBG |
AIC1653
A capacitor at 100pF in parallel to the upper
feedback resistor is required for a stable feedback.
bursts by ramping up the inductor current, which is
then delivered to load. If either inductor value over
22μH or capacitor value under 4.7μF is used,
output ripple voltage will increase because the
capacitor will be slightly overcharged in each burst
cycle. Two methods of helping reduce output ripple
voltage are recommended. One is to increase the
output
capacitor
value.
Adding
a
100pF
feedforward capacitor that is parallel with R1 (see
Fig.13) is the other. And the addition of the small
capacitor will greatly reduce output ripple voltage.
PCB Layout
Proper PCB layout and component placement may
enhance the performance of AIC1653 application
circuit. For a better efficiency, major loop from
input terminal to output terminal should be as short
as possible. In addition, in a case of a large current
loop, the track width of each component in the loop
should maintain as wide as possible. In order to get
rid of noise interference, separation of Schottky
diode ground and output terminal ground into two
independent parts is required. Recommended
layout diagrams and component placement are
shown as Fig. 9 to Fig. 12.
Output Voltage Programming
A resistive divider, as in formula (3), sets the output
voltage.
(
)
×
×
+
+
=
6
10
2
R1
R2
R1
1
1.23V
OUT
V
(3)
Fig. 9 Top Layer
Fig. 10 Bottom Layer
9
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AIC1653CVTR | 制造商:AIC 制造商全稱:Analog Intergrations Corporation 功能描述:Micropower Inverting DC/DC Converter in SOT-23-5 |
| AIC1660 | 制造商:AIC 制造商全稱:Analog Intergrations Corporation 功能描述:Switched-Capacitor Voltage Converter |
| AIC1660CN | 制造商:AIC 制造商全稱:Analog Intergrations Corporation 功能描述:Switched-Capacitor Voltage Converter |
| AIC1660CS | 制造商:AIC 制造商全稱:Analog Intergrations Corporation 功能描述:Switched-Capacitor Voltage Converter |
| AIC1680 | 制造商:AIC 制造商全稱:Analog Intergrations Corporation 功能描述:Ultra Low Power Voltage Detector |
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