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參數(shù)資料
| 型號： | LT1144 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Octal Bus Transceivers With 3-State Outputs 20-PDIP 0 to 70 |
| 中文描述： | 開關(guān)電容寬輸入范圍電壓轉(zhuǎn)換器，帶有關(guān)斷 |
| 文件頁數(shù)： | 8/8頁 |
| 文件大?。?/td> | 206K |
| 代理商： | LT1144 |
8
LTC1144
U
S
A
O
PPLICATI
TYPICAL
Regulated –5V Output Voltage
Figure 12 shows a regulated –5V output with a 9V input.
With a 0mA to 5mA load current, the R
OUT
is below 20
.
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7487
(408) 432-1900
G
FAX
: (408) 434-0507
G
TELEX
: 499-3977
LINEAR TECHNOLOGY CORPORATION 1994
LT/GP 0494 10K PRINTED IN USA
Paralleling for Lower Output Resistance
Additional flexibility of the LTC1144 is shown in Figure 13.
Two LTC1144s are connected in parallel to provide a lower
effective output resistance. However, if the output resis-
tance is dominated by 1/(f
×
C1), increasing the capacitor
size (C1) or increasing the frequency will be of more
benefit than the paralleling circuit shown.
Figure 12. A Regulated –5V Supply
1
2
3
4
8
7
6
5
+
+
1
μ
F
100
μ
F
–5V
9V
36k
300k
1144 F12
LTC1144
2N2369
Figure 13. Paralleling for Lower Output Resistance
V
OUT
= –(V
+
)
V
+
C1
10
μ
F
C2
20
μ
F
1144 F13
1
2
3
4
8
7
6
5
LTC1144
+
+
C1
10
μ
F
1/4 CD4077*
* THE EXCLUSIVE NOR GATE
SYNCHRONIZES BOTH LTC1144s
TO MINIMIZE RIPPLE
1
2
3
4
8
7
6
5
LTC1144
+
PACKAGE DESCRIPTIO
N
U
Dimemsions in inches (millimeters) unless otherwise noted.
0.009 – 0.015
(0.229 – 0.381)
0.300 – 0.320
(7.620 – 8.128)
0.325–0.015
+0.635
–0.381
8.255
(
)
0.045 ± 0.015
(1.143 ± 0.381)
0.100 ± 0.010
(2.540 ± 0.254)
0.065
(1.651)
TYP
0.045 – 0.065
(1.143 – 1.651)
0.130 ± 0.005
(3.302 ± 0.127)
0.020
(0.508)
MIN
0.018 ± 0.003
(0.457 ± 0.076)
0.125
(3.175)
MIN
1
2
3
4
8
7
6
5
0.250 ± 0.010
(6.350 ± 0.254)
0.400
(10.160)
MAX
0.016 – 0.050
0.406 – 1.270
0.010 – 0.020
(0.254 – 0.508)
×
45
°
0°– 8° TYP
0.008 – 0.010
(0.203 – 0.254)
0.053 – 0.069
(1.346 – 1.752)
0.014 – 0.019
(0.355 – 0.483)
0.004 – 0.010
(0.101 – 0.254)
0.050
(1.270)
BSC
1
2
3
4
0.150 – 0.157
(3.810 – 3.988)
8
7
6
5
0.189 – 0.197
(4.801 – 5.004)
0.228 – 0.244
(5.791 – 6.197)
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.006 INCH (0.15mm).
S8 Package
8-Lead Plastic SOIC
N8 Package
8-Lead Plastic DIP
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