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參數(shù)資料
| 型號： | MC34063 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 500kHz and 1MHz High Efficiency 1.5A Switching Regulators; Package: SO; No of Pins: 8; Temperature Range: -40?°C to 85?°C |
| 中文描述： | 射頻放大器 |
| 文件頁數(shù)： | 10/13頁 |
| 文件大?。?/td> | 172K |
| 代理商： | MC34063 |
MC34063A, MC33063A, NCV33063A
http://onsemi.com
10
Calculation
StepUp
StepDown
VoltageInverting
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 peaktopeak 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 15. Design Formula Table
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC34063C | 0.8A Step Down / Step Up / Inverting DC-DC Converter |
| MC34063CD | 0.8A Step Down / Step Up / Inverting DC-DC Converter |
| MC34063CN | 0.8A Step Down / Step Up / Inverting DC-DC Converter |
| MC34151 | High Speed Dual MOSFET Drivers(高速雙MOSFET驅(qū)動器) |
| MC34166 | 500kHz and 1MHz High Efficiency 1.5A Switching Regulators; Package: SO; No of Pins: 8; Temperature Range: -40?°C to 85?°C |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC34063A | 制造商:Unisonic Technologies Co Ltd 功能描述:ELECTRONIC COMPONENT |
| MC34063A_02 | 制造商:AIC 制造商全稱:Analog Intergrations Corporation 功能描述:Industrial Standard, Universal DC/DC Converter |
| MC34063A_07 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:1.5 A, Step−Up/Down/ Inverting Switching Regulators |
| MC34063A_08 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:SMPS Controller |
| MC34063A_10 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:1.5 A, Step−Up/Down/ Inverting Switching Regulators |
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