S1F78100Y2A Epson Electronics America, Inc., S1F78100Y2A Datasheet - Page 55
S1F78100Y2A
Manufacturer Part Number
S1F78100Y2A
Description
High Precision Voltage Regulators
Manufacturer
Epson Electronics America, Inc.
Datasheet
1.S1F78100Y2A.pdf
(258 pages)
- Current page: 55 of 258
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S1F76610 Series
TYPICAL APPLICATIONS
Voltage Tripler with Regulator
The following figure shows the circuit required to triple
the input voltage, regulate the result and add a tempera-
ture gradient of –0.4%/ C. Note that the high input im-
pedance of RV requires appropriate noise countermea-
sures.
Parallel Connection
Connecting two or more chips in parallel reduces the
output impedance by 1/n, where n is the number of de-
vices used.
Only the single output smoothing capacitor, C3, is re-
2–12
V
V
I
DD
= –5 V
= 0 V
5 V
10 F
10 F
V
V
DD
I
C1 +
C2
= –5 V
= 0 V
5 V
+
1
2
3
4
5
6
7
10 F
10 F
C1
C2
+
+
+
10 F
C3
1
2
3
4
5
6
7
14
13
12
11
10
9
8
1 M
R
V
OSC
O
= –15 V
R1
R2
100 k
14
13
12
11
10
1 M
9
8
R
V
to
RV
REG
+
10 F
= –8 V
=
1 M
C4
R
R
OSC
R
RV
1
V
EPSON
RV
10 F
10 F
10 F
C1
C2
+
C3
Converting a Voltage Tripler to a Voltage
Doubler
To convert this curcuit to a voltage doubler, remove ca-
pacitor C2 and short circuit CAP2– to V
quired when any number of devices are connected in
parallel. Also, the voltage regulator in one chip is suffi-
cient to regulate the combined output.
+
+
V
V
DD
I
= –5 V
1
2
3
4
5
6
7
= 0 V
5 V
10 F
10 F
C1 +
C2
+
1
2
3
4
5
6
7
+
10 F
14
13
12
11
10
C3
9
8
1 M
R
V
OSC
O
14
13
12
11
10
9
8
= –15 V
1 M
R
OSC
100 k
1 M
V
R
Technical Manual
S1F70000 Series
O
to
REG
RV
.
+
V
O
= –10 V
10 F
= –15 V
C4
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