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參數(shù)資料
| 型號： | MC33463 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | DC/DC變換器 |
| 英文描述： | 30-mA Switched-Cap DC-DC Converter with fixed 2.5-V Output 6-SOT-23 -40 to 85 |
| 中文描述： | 變頻微功耗的DC - DC轉換器 |
| 文件頁數(shù)： | 11/12頁 |
| 文件大小： | 164K |
| 代理商： | MC33463 |
MC33463
11
MOTOROLA ANALOG IC DEVICE DATA
Figure 20. Design Equations
Calculation
Step–Down
Step–Up
Flyback
ton
D
f
osc
D
f
osc
D
f
osc
L
ton
(Vin
Vsat
(2IO)
VO)
(n)(Vin)2(ton)
PO
(n)(Vin)2(ton)
PO
IL(avg)
IL(pk)
IO
Iin
Iin
(Vin
Vsat
VO)(ton)
L
(Vin
Vsat)(ton)
L
(Vin
Vsat)(ton)
L
Vripple(pp)
IL
1
16foscCO
2
(ESR)2
1
2
(ton)(IO)
(CO)
(ton)(IO)
(CO)
The following converter design characteristics must be chosen:
Vin – Nominal Operating dc input voltage
VO – Desired dc output voltage
IO – Desired dc output current
Vripple(pp) – Desired peak–to–peak output ripple voltage. For best performance the ripple voltage should be kept to a low value since it will directly
affect line and load regulation. Capacitor CO should be a low equivalent series resistance (ESR) electrolytic designed for switching regulator
applications.
NOTE
: 1.
Vsat – Saturation voltage of the switching transistor.
n – Estimated circuit efficiency.
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相關代理商/技術參數(shù) |
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|---|---|
| MC33463H-30KT1 | 制造商:ON Semiconductor 功能描述: 制造商:Motorola Inc 功能描述: |
| MC33463H-30LT1 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MC33463H-50KT1 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MC33464H-20CT1 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MC33464H-27AT1 | 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel |
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