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參數(shù)資料
| 型號： | L7952CT |
| 廠商： | 意法半導體 |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | NEGATIVE VOLTAGE REGULATORS |
| 中文描述： | 負電壓調(diào)節(jié)器 |
| 文件頁數(shù)： | 8/13頁 |
| 文件大?。?/td> | 111K |
| 代理商： | L7952CT |
Figure 1 :
Fixed Output Regulator.
Figure 2 :
Split PowerSupply (
±
15V/1A).
Notes :
1. To specify an output voltage, substitute voltage value for ”XX”.
2. Required for stability. For value given, capacitor must be solid
tantalum. If aluminium electrolitics are used, at least ten times
value should be selected. C
1
is required if regulator is located an
appreciable distance from power supply filter.
3. To improve transient response. If large capacitors are used, a
high current diode from input to output (1N4001 or similar) should
be introduced to protect the device from momentary input short
circuit.
Against potential latch-up problems.
APPLICATION INFORMATION
Figure 3 :
Circuitfor IncreasingOutput Voltage.
Figure 4 :
High CurrentNegative Regulator
(– 5V/4Awith 5A current limiting).
C3 Optional for improvedtransient response and ripple rejection.
Figure 5 :
Typical ECL System PowerSupply
(– 5.2V/4A).
Optional dropping resistor to reduce the power dissipated in the
boost transistor.
V
O
= V
XX
R
1
+
R
2
R
2
V
XX
R
2
>
3
I
d
L7900
8/13
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