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參數資料
| 型號： | MC33063A |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | DC-to-DC Converter Control Circuits |
| 中文描述： | 型DC - DC轉換器控制電路 |
| 文件頁數： | 10/16頁 |
| 文件大小： | 149K |
| 代理商： | MC33063A |
MC34063A, MC33063A
http://onsemi.com
10
Calculation
Step–Up
Step–Down
Voltage–Inverting
t
on
/t
off
Vout
VF
Vin(min)
Vsat
Vin(min)
Vout
VF
Vin(min)
Vsat
Vout
|Vout|
Vin
VF
Vsat
(t
on
+ t
off
)
1
f
1
f
1
f
t
off
ton
ton
toff
(t
on
+ t
off
) – t
off
4.0 x 10
–5
t
on
toff
1
ton
ton
toff
toff
1
ton
ton
toff
(t
on
+ t
off
) – t
off
4.0 x 10
–5
t
on
toff
1
t
on
(t
on
+ t
off
) – t
off
4.0 x 10
–5
t
on
C
T
I
pk(switch)
2Iout(max)
ton
toff
1
2Iout(max)
2Iout(max)
ton
toff
1
R
sc
0.3/I
pk(switch)
0.3/I
pk(switch)
0.3/I
pk(switch)
L
(min)
(Vin(min)
Ipk(switch)
Vsat)
ton(max)
(Vin(min)
Vsat
Vout)
Ipk(switch)
ton(max)
(Vin(min)
Ipk(switch)
Vsat)
ton(max)
C
O
9
Ioutton
Vripple(pp)
Ipk(switch)(ton
8Vripple(pp)
toff)
9
Ioutton
Vripple(pp)
V
sat
= Saturation voltage of the output switch.
V
F
= Forward voltage drop of the output rectifier.
The following power supply characteristics must be chosen:
V
in
– Nominal input voltage.
V
out
– Desired output voltage,
I
out
– Desired output current.
f
min
– Minimum desired output switching frequency at the selected values of V
in
and I
O
.
V
ripple(pp)
– Desired peak–to–peak output ripple voltage. In practice, the calculated capacitor value will need to be increased due to its
equivalent series
resistance and board layout. The ripple voltage should be kept to a low value since it will directly affect the
line and load regulation.
NOTE:
For further information refer to Application Note AN920A/D and AN954/D.
|V
out
|
1.25 1
R2
R1
Figure 14. Design Formula Table
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| MC33072DR2G | Single Supply 3.0 V to 44 V Operational Amplifiers |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MC33063A_07 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1.5-A PEAK BOOST/BUCK/INVERTING SWITCHING REGULATORS |
| MC33063AD | 功能描述:DC/DC 開關控制器 SMPS Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| MC33063ADE4 | 功能描述:直流/直流開關調節器 1.5-A Peak Boost/ Buck/Inverting Swit RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| MC33063ADG | 功能描述:直流/直流開關調節器 40V 1.5A Buck/Boost/Inverting RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| MC33063ADG | 制造商:ON Semiconductor 功能描述:DC/DC CONVERTER IC ((NW)) 制造商:ON Semiconductor 功能描述:IC, STEP-UP/STEP-DOWN/INVERT REG, 8-SOIC |
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