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參數(shù)資料
| 型號： | RT34063AGS |
| 廠商： | Richtek Technology Corporation |
| 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(shù)： | 8/13頁 |
| 文件大?。?/td> | 224K |
| 代理商： | RT34063AGS |
RT34063A
8
DS34063A-13 March 2007
www.richtek.com
Design Formula Table
Calculation
Step-up
Step-down
Voltage-Inverting
t
on
/t
off
SAT
(MIN)
IN
V
(MIN)
IN
V
F
OUT
V
V
V
+
OUT
V
SAT
(MIN)
IN
V
F
OUT
V
V
V
+
SAT
IN
F
OUT
V
V
V
V
+
(t
on
+ t
off
)
f
1
f
1
f
1
t
off
1
t
t
t
t
off
on
off
on
+
+
1
t
t
t
t
off
on
off
on
+
+
1
t
t
t
t
off
on
off
on
+
+
t
on
(
)
off
t
off
t
on
t
+
(
)
off
t
off
t
on
t
+
(
)
off
t
off
t
on
t
+
C
T
on
5
t
10
4.0
×
on
5
t
10
4.0
×
on
5
t
10
4.0
×
Ipk
(SWITCH)
+
1
t
t
I
2
off
on
(MAX)
OUT
(MAX)
OUT
I
2
+
1
t
t
I
2
off
on
OUT(MAX)
R
SC
0.3/Ipk
(SWITCH)
0.3/Ipk
(SWITCH)
0.3/Ipk
(SWITCH)
(min)
(
)
)
MAX
(
on
t
(SWITCH)
SAT
)
MIN
(
IN
Ipk
V
V
(
)
)
MAX
(
on
t
)
SWITCH
(
SAT
)
MIN
(
IN
Ipk
V
V
(
)
)
MAX
(
on
t
)
SWITCH
(
SAT
)
MIN
(
IN
Ipk
V
V
C
O
(pp)
Vripple
ton
I
OUT
)
pp
(
ripple
V
off
t
on
)
t
SWITCH
8
(
pk
I
)
+
(pp)
Vripple
ton
I
OUT
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
V
ripple(pp)
: Desired peak-to-peak output ripple voltage. In practice, the calculated capacitor value needs to be increased
due to its equivalent series resistance and board layout. The ripple voltage should be kept to a low value
since it directly affects the line and load regulation.
: Minimum desired output switching frequency at the selected values of Vin and I
O.
2
OUT
1
R
V
=1.25(1+
)
R
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PDF描述 |
|---|---|
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| RT34063AMN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DC-to-DC Converter Control Circuits |
| RT34063AMS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DC-to-DC Converter Control Circuits |
| RT34063APN | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:DC-to-DC Converter Control Circuits |
| RT34063APS | 制造商:Richtek 功能描述:DC/DC (IC) |
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