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參數(shù)資料
| 型號： | MC78905CT |
| 廠商： | Fairchild Semiconductor Corporation |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 3-TERMINAL 1A NEGATIVE VOLTAGE REGULATORS |
| 中文描述： | 三端負電壓調節(jié)器第1A |
| 文件頁數(shù)： | 14/15頁 |
| 文件大?。?/td> | 117K |
| 代理商： | MC78905CT |
MC79XX (LM79XX) (KA79XX/A) FIXED VOLTAGE REGULATOR (NEGATIVE)
TYPICAL APPLICATIONS
Fig. 6
Negative Fixed output regulator
2.2
μ
F
2
- V
I
- V
O
KA79XX
1
3
+
+1
μ
F
C
I
C
O
Fig. 7
Split power supply (
±
12V/1A)
1N4001
*
2.2
μ
F
2
- 15V
-12V
KA7912
1
3
+
+
1
μ
F
0.33
μ
F
+
KA7812
+ 15V
+12V
+
1
μ
F
1
2
3
1N4001
*
GND
Notes:
(1)
for “XX “
(2)
To specify an output voltage, substitute voltage value
Required for stability. For value given, capacitor
must be solid tantalum. If aluminum electronics are
used, at least ten times value shown should be
selected. C
I
is required if regulator is located an
appreciable
distance from power supply filter.
To improve transient response. If
large capacitors
are used, a high current diode from input to output
(1N400l or similar) should be introduced to protect
the device from momentary input short circuit.
(3)
*
: Against potential latch-up problems
.
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