OM7659ST
Preliminary Data Sheet
OM7660ST
VOLTAGE CONVERTER IN AN ISOLATED
HERMETIC PACKAGE
OM7661ST
Voltage Converter, 1 Amp, 5V To 3.0V, 3.3V
Or Adjustable Output
FEATURES
•
•
•
•
•
•
Hermetic Package, Isolated Substrate
Mil-Spec Temperature Range
External Compensating Components Not Required
Drops 5V To 3.0V, 3.3V, Adjustable
1.0 Amp Output
Available Hi-Rel Screened
DESCRIPTION
These voltage converters are both fixed output voltage and adjustable. They operate
with a regulated 5V input and drop the input to 3.0V or 3.3V over at output current
range from 10mA to 1.0A. The fixed voltage output devices are two terminal devices
and the adjustable version is a three terminal device which permits output voltage
trimming.
ABSOLUTE MAXIMUM RATINGS
@ 25°C
Power Dissipation (P
d
). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 W
Continuous Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 A
Operating and Storage Temperature Range. . . . . . . . . . . . . . . . . . . . - 55°C to + 150° C
Thermal Resistance, R
qJC
, Junction-to-Case, Typical . . . . . . . . . . . . . . . . . . . . . . 5° C/W
Lead Soldering Temperature, 10 second time limit . . . . . . . . . . . . . . . . . . . . . . . . 260° C
3.3
4 11 R0
3.3 - 207
OM7659ST - OM7661ST
ELECTRICAL CHARACTERISTICS
Part No.
OM7659ST
V
O
OM7660ST
5V
OM7661ST
All
V
REF
REG
(LOAD)
T
C
1
Symbol
Test Conditions
V
IN
I
O
500mA
10mA to 1A
500mA
10mA to 1A
500mA
10mA to 1A
10mA to 1A
500mA
T
J
25°C
-55°C to 125°C
25°C
-55°C to 125°C
25°C
-55°C to 125°C
25°C
25 to 125°C
Min.
2.90
2.80
3.20
3.10
1.20
1.10
Test Limits
Typ.
3.00
3.30
1.25
0.5
0.005
Max.
3.10
3.20
3.40
3.50
1.30
1.40
1.15
0.01
%V
O
%V
O
/°C
V
Units
Note: 1. Temperature Coefficient
OM7659ST/OM7660ST
Pin Connection
Mechanical Outline
.420
.410
.200
.190
.045
.035
.150
.140
.665
.645
.537
.527
.430
.410
.038 MAX.
Pin 1: Output
Pin 2: Input
1
2
.045
.035
.750
.500
.005
.200 TYP.
.120 TYP.
OM7661ST
Pin Connection
Mechanical Outline
.420
.410
.200
.190
.045
.035
Adjusting
+5V
3
R1
3.3
.150
.140
.665
.645
.537
.527
.430
.410
1
R2
.038 MAX.
Pin 1: Adj.
Pin 2: Output
Pin 3: Input
1 2 3
2
V
OUT
.750
.500
.005
.035
.025
.100 TYP.
.120 TYP.
205 Crawford Street, Leominster, MA 01453 USA (508) 534-5776 FAX (508) 537-4246