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參數(shù)資料
| 型號： | AIC1553CV |
| 廠商： | Analog Integrations Corporation |
| 英文描述： | Compact 500KHz PWM/PFM, Step-Down DC/DC Converters |
| 中文描述： | 緊湊500KHz的PWM / PFM切換，降壓DC / DC轉(zhuǎn)換器 |
| 文件頁數(shù)： | 9/9頁 |
| 文件大?。?/td> | 391K |
| 代理商： | AIC1553CV |
AIC1553
9
The selection of output capacitor dominates the
ESR of the capacitor. The capacitance is
adequate for filtering and the low ESR value
shows a low ripple voltage.
The output ripple voltage can be calculated as:
1
I
V
OUT
+
ESR
C
8
L
O
Ceramic capacitor with low ESR value provides
the low output ripple. For required, the ceramic
capacitor parallel a tantalum capacitor is satisfied.
Layout Considerations
Due to the high switching frequency and large
transient current, the layout is recommended to
have a ground plane and short connections to
each component. Minimize the length and the
sufficient traces for power- flow loop. Fig. 13 is
recommended placement for components.
Fig. 13 The Recommended Placement and Routing of AIC1553
z
SOT-23-5 (unit: mm)
SYMBOL
MIN
MAX
A
1.00
1.30
A1
—
0.10
A2
0.70
0.90
b
0.35
0.50
C
0.10
0.25
D
2.70
3.10
E
1.40
1.80
e
1.90 (TYP)
H
2.60
3.00
L
0.37
—
E
e
D
H
A1
A
A2
b
L
θ
1
C
θ
1
1
°
9
°
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| AIC1553CVBG | 制造商:AIC 制造商全稱:Analog Intergrations Corporation 功能描述:Compact 500KHz PWM/PFM, Step-Down DC/DC Converters |
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