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OM7612ST Datasheet PDF : 4 Pages
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OM7612ST
TYPICAL APPLICATIONS
HIGH STABILITY REGULATOR
DUAL TRACKING SUPPLY ±1.25V TO ±20V
+1µF
Solid
Tantalum
7V
R2*
LM329B
R3
R1
1.5K
1k
1%
1%
+1µF
Solid
Tantalum
Adj
-VIN
VIN
VOUT
OM7612ST
*R2 =
(VOUT) - 908
-VOUT
9.08 x 10-3
+VIN
OM7620ST
VIN
VOUT
Adj
1µF*
R2
+
5K
10µF
1%
R4
+
5k
10µF
1%
1µF*
+VOUT
R1**
100
1%
2.2* D1
µF IN4002
R3
5K
R5**
100 2.2* D2
1%
µF
IN4002
-VIN
Adj
VIN
VOUT
OM7612ST
-VOUT
* Solid Tantalum
** R1 or R2 may be trimmed slightly to improve tracking.
* CIN is required if regulator is located more than
IPROG
4 inches from power supply filter. A 1 µF solid
tantalum or 10 µF aluminum electrolytic is
+
CIN*
1.0µF
R2
R1
120
CO**
+
1.0µF
recommended.
** CO is necessary for stability. A 1 µF solid
tantalum or 10 µF aluminum electrolytic is
IAdj
recommended.
VIN
VOUT
-VIN
OM7612ST
-VOUT
VOUT = -1.25 V (1 +R2)
R1
3.3
CONNECTION DIAGRAM
Tab
1 23
Isolated
Front View
Pin 1 - Adjust
Pin 2 - Input
Pin 3 - Output
Tab - Isolated
Non-Isolated
Front View
Pin 1 - Adjust
Pin 2 - Input
Pin 3 - Output
Tab - Input
MECHANICAL OUTLINE
.200
.420
.190
.410
.045
.035
.665
.150
.645
.140
.537
.527
.430
.410
.038 MAX.
.750
.500
.005
.035
.100 TYP.
.025
NOTES
• Case is metal/hermetically sealed
• Isolated Tab
.120 TYP.
205 Crawford Street, Leominster, MA 01453 USA (508) 534-5776 FAX (508) 537-4246
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