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L7920CD2T-TR 数据表(PDF) 10 Page - STMicroelectronics

部件名 L7920CD2T-TR
功能描述  Negative voltage regulators
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L7920CD2T-TR 数据表(HTML) 10 Page - STMicroelectronics

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Application information
L79xxC
10/21
6
Application information
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 electrolytic are used,
at least ten times value should be selected. C1 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.
Figure 4.
Fixed output regulator
Figure 5.
Split power supply (± 15 V - 1 A)


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