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參數(shù)資料
| 型號： | XC9503 |
| 廠商： | TOREX SEMICONDUCTOR LTD. |
| 英文描述： | 2ch.Step-Down DC/DC Controller ICs |
| 中文描述： | 2ch.Step型DC / DC控制器芯片 |
| 文件頁數(shù)： | 8/32頁 |
| 文件大?。?/td> | 1803K |
| 代理商： | XC9503 |
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XC9503
Series
V
OUT
(V)
1.0
1.5
1.8
2.0
2.2
R
FB11
(k
Ω
)
30
220
220
330
390
R
FB12
(k
Ω
)
270
330
220
270
270
C
FB1
(pF)
430
62
62
39
33
V
OUT
(V)
2.5
2.7
3.0
3.3
5.0
R
FB11
(k
Ω
)
390
360
560
200
82
R
FB12
(k
Ω
)
220
180
240
75
18
C
FB1
(pF)
33
33
24
62
160
<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 R
FB11
(R
FB21
) and R
FB12
(R
FB22
). The sum of R
FB11
(R
FB21
) and R
FB12
(R
FB22
) should normally be 1M
Ω
or
less.
V
OUT
=0.9
×
(R
FB11
+R
FB12
) /R
FB12
The value of C
FB1
(C
FB2
), speed-up capacitor for phase compensation, should be
fzfb= 1 / (2
×
π
×
C
FB1
×
R
FB11
)
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 (C
L
).
[Example of Calculation]
When R
FB11
=200k
Ω
and R
FB12
=75k
Ω
, V
OUT1
=0.9
×
(200k+75k) / 75k=3.3V.
[Typical Example]
[External Components]
Tr
:
* MOSFET
XP162A12A6P
(P-ch Power MOSFET, TOREX)
Note: V
GS
breakdown voltage of this Tr. is 12V so
please be careful with the power supply voltage.
SD :
L
C
L1
:
:
* PNP MOSFET
2SA1213 (SANYO)
500
Ω
( Adjust in accordance with load & Tr.'s HFE.)
Set according to the equation below.
R
B
≦
(V
IN
-0.7)
×
hFE / IC-R
EXTBH
2200pF (Ceramic)
Set according to the equation below.
C
B1
≦
(2
π×
R
B
×
FOSC
×
0.7)
The same method can be adopted for channel two also.
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.
C=(C
L
standard value)
×
(I
OUT
(mA) / 500mA
×
V
OUT
/ V
IN
(Schottky, MATSUSHITA)
(Schottky, TOSHIBA)
(CDRH5D28, SUMIDA, FOSC = 500kHz)
(CDRH5D28, SUMIDA, FOSC = 300kHz)
(CDRH5D28, SUMIDA, FOSC = 180kHz)
Tr
R
B
:
C
B
:
:
The same components can be adopted for both channel 1 and channel 2.
■
OPERATIONAL EXPLANATION (Continued)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| XC9503_1 | 2ch.Step-Down DC/DC Controller ICs |
| XC9504B092CAL | 2 ch. Step-Up / Inverting DC/DC Controller ICs |
| XC9504B092CAR | 2 ch. Step-Up / Inverting DC/DC Controller ICs |
| XC9504B092CDL | 2 ch. Step-Up / Inverting DC/DC Controller ICs |
| XC9504B092CDR | 2 ch. Step-Up / Inverting DC/DC Controller ICs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XC9503_1 | 制造商:TOREX 制造商全稱:Torex Semiconductor 功能描述:2ch.Step-Down DC/DC Controller ICs |
| XC9503B092 | 制造商:TOREX 制造商全稱:Torex Semiconductor 功能描述:2ch Step-down DC/DC Controller ICs |
| 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 |
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