S-81218SG データシートの表示（PDF） - Seiko Instruments Inc
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S-81218SG Datasheet PDF : 33 Pages
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HIGH-PRECISION VOLTAGE REGULATOR
S-812XXSG Series
Standard Circuit
The basic circuit using the S-812XXSG Series is shown in Figure 11.
VIN
CI
S-812XXSG
2
Series
3
1
VOUT
CO
Common
Single-point GND
Figure 11
Common
Application Circuits
1. High output current positive voltage regulator
Figure 12 shows a circuit for increasing the output
current.
Tr1
VIN
VIN S-812XXSG VOUT VOUT
Series
R
GND
Common
Short-circuit protection of Tr1 is possible by
adding the sense resistor RS and the PNP
transistor as shown in Figure 13.
Figure 12
VIN
Rs Tr1
Tr2
R
VIN S-812XXSG
Series
GND
VOUT
Common
Figure 13
Seiko Instruments Inc.
17
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