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參數(shù)資料
| 型號： | XC9503B092 |
| 廠商： | TOREX SEMICONDUCTOR LTD. |
| 英文描述： | 2ch Step-down DC/DC Controller ICs |
| 中文描述： | 2通道降壓DC / DC控制器芯片 |
| 文件頁數(shù)： | 8/30頁 |
| 文件大?。?/td> | 405K |
| 代理商： | XC9503B092 |
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<Setting of Output Voltage>
Output voltage can be set by adding external split resistors. Output voltage is determined by the following equation, based on
the values of RFB11(RFB21) and RFB12(RFB22). The sum of RFB11(RFB21) and RFB12(RFB22) should normally be 1 M
or
V
OUT
=0.9
×
(RFB11+RFB12) /RFB12
[Example of Calculation]
When RFB11=200k
and RFB12=75k
, V
OUT1
=0.9
×
(200k+75k) / 75k=3.3V.
[Typical Example]
V
OUT
(V)
(k
)
(k
)
1.0
30
270
1.5
220
330
1.8
220
220
2.0
330
270
2.2
390
270
The same method can be adopted for channel two also.
[External Components]
Tr :
* MOSFET
XP162A12A6P
(TOREX P-Channel Power MOSFET)
Note : VGS Breakdown Voltage of this Tr. is 12V
so please be careful with the power supply voltage.
SD :
MA2Q737
CMS02
10
μ
H
22
μ
H
22
μ
H
16V, 47
μ
F
(Tantalum)
Increase capacity according to the equation below
when the step-up voltage ratio is large and output
current is high.
(Schottky , MATSUSHITA)
(Schottky, TOSHIBA)
(SUMIDA, CDRH5D28, FOSC = 500kHz)
(SUMIDA, CDRH5D28, FOSC = 300kHz)
(SUMIDA, CDRH5D28, FOSC = 180kHz)
L :
CL :
C=(CL standard value)
×
(IOUT (mA)/500mA
×
VOUT/VIN
Tr :
* PNP MOSFET
2SA1213
500
( Adjust in accordance with load & Tr.'s HFE.)
Set according to the equation below.
RB
≤
(VIN-0.7) x hFE / I
C
-R
EXTBH
2200pF (Ceramic)
Set according to the equation below.
CB
≤
(2
π
x RB x FOSC x 0.7)
(SANYO)
RB :
CB :
The same components can be adopted for both channel 1 and channel 2.
XC9503 Series
2ch. Step-down DC/DC Controller ICs
The value of CFB1(CFB2), speed-up capacitor for phase compensation, should be fzfb= 1 / (2
×
π
×
CFB1
×
RFB11) which is
equal to 12kHz. Adjustments are required from 1kHz to 50kHz depending on the application, value of inductance (L), and value
of load capacity (CL).
RFB11
RFB12
CFB1
(pF)
430
62
62
39
33
V
OUT
(V)
2.5
RFB11
(k
)
390
360
RFB12
(k
)
220
180
240
CFB1
(pF)
33
33
24
62
18
160
75
5.0
200
82
3.0
3.3
560
2.7
8
相關PDF資料 |
PDF描述 |
|---|---|
| XC9503B092A | 2ch Step-down DC/DC Controller ICs |
| XC9503B092AL | 2ch Step-down DC/DC Controller ICs |
| XC9503B092AR | 2ch Step-down DC/DC Controller ICs |
| XC9503B093 | 2ch Step-down DC/DC Controller ICs |
| XC9503B093AL | 2ch Step-down DC/DC Controller ICs |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| XC9503B092A | 制造商:TOREX 制造商全稱:Torex Semiconductor 功能描述:2ch Step-down DC/DC Controller ICs |
| XC9503B092AL | 制造商:TOREX 制造商全稱:Torex Semiconductor 功能描述:2ch Step-down DC/DC Controller ICs |
| XC9503B092AR | 制造商:TOREX 制造商全稱:Torex Semiconductor 功能描述:2ch Step-down DC/DC Controller ICs |
| XC9503B093 | 制造商:TOREX 制造商全稱:Torex Semiconductor 功能描述:2ch Step-down DC/DC Controller ICs |
| XC9503B093A | 制造商:TOREX 制造商全稱:Torex Semiconductor 功能描述:2ch Step-down DC/DC Controller ICs |
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