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參數資料
| 型號： | MC34270FB |
| 廠商： | MOTOROLA INC |
| 元件分類： | 穩壓器 |
| 英文描述： | Single Output LDO, 250mA, Fixed(3.0V), Low Noise, Fast Transient Response 5-SOT-23 -40 to 85 |
| 中文描述： | 0.5 A DUAL SWITCHING CONTROLLER, 700 kHz SWITCHING FREQ-MAX, PQFP32 |
| 封裝： | PLASTIC, QFP-32 |
| 文件頁數： | 7/12頁 |
| 文件大小： | 364K |
| 代理商： | MC34270FB |
MC34270 MC34271
7
MOTOROLA ANALOG IC DEVICE DATA
Figure 11. Representative Block Diagram Electroluminescent Backlight Configuration
En
R
S
Q
VDD
D1
S1
DS1
SW1
VDD
Sync
Drv1
EN1
ELD
Mode
R
S
Q
RT
SS1
Vref
1.25 V
Ref1
FB1
Circuit #1 Bias Supply
VDD
Comp1
En
OSC
D2
S2
VB
V0
V1
V2
V3
V4
Circuit #2
Bias Supply
Ref2
FB2
Comp2
SS2
DS2
EN2
VA
Gnd
BIAS
VB
6.0 V to 30 V
V2
V3
V4
VDD2
VDD2
VDD2
169 k
16
15
14
13
12
19
18
17
10
11
9
6
7
32
1
26
8
31
30
27
2
3
4
5
23
22
21
20
24
25
28
29
EL
Panel
Brightness
“On/Off”
LCD
Display
DAC
÷
2
÷
N
V1
V0
VB
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相關代理商/技術參數 |
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