OM1326SMM OM1326NMM
OM1326NKM OM1326NTM
OM1326STM
OM1326N2M
1.5 AMP POSITIVE ADJUSTABLE VOLTAGE
REGULATOR APPROVED TO DESC DRAWING 7703407
Three Terminal, Precision Adjustable
Positive Voltage Regulator In Hermetic
Style Packages (LM117AHV)
Please see mechanical
outlines herein
FEATURES
•
•
•
•
•
•
Similar To Industry Standard LM117AHV
Approved To DESC Standardized Military Drawing Number 7703407
Built In Thermal Overload Protection
Short Circuit Current Limiting
Available In Six Package Styles
Maximum Output Voltage Tolerance Is Guaranteed to + 1%
DESCRIPTION
These three terminal positive regulators are supplied in hermetically sealed
packages. All protective features are designed into the circuit, including thermal
shutdown, current-limiting, and safe-area control. With heat sinking, these devices
can deliver up to 1.5 amps of output current. The LCC-20 device is limited to .5
amps. The unit also features output voltages that can be fixed from 1.2 volts to 57
volts using external resistors.
ABSOLUTE MAXIMUM RATINGS
T
c
@ 25°C
Power Dissipation
Case 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 W
Case-All Others. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 W
Input - Output Voltage Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 V
Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . - 55°C to + 150°C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65°C to + 150°C
Lead Temperature (Soldering 10 seconds) . . . . . . . . . . . . . . . . . . . . . . . . . . . 300°C
Thermal Resistance, Junction to Case:
Case 2, LCC-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17°C/W
Case U & M, TO-257 (Isol) and SMD-3 . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2°C/W
Case T&N, TO-257 (Non-Isol) and SMD-1 . . . . . . . . . . . . . . . . . . . . . . . 3.5°C/W
Case Y, TO-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0°C/W
Maximum Output Current:
Case 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 A
Case-All Others. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5A
Recommended Operating Conditions:
Output Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.2 to 57 VDC
Ambient Operating Temperature Range (T
A
). . . . . . . . . . . . . . . . - 55°C to + 125°C
Input Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.25 to 61.25 VDC
4 11 R2
Supersedes 1 07 R1
3.5
3.5 - 25
OM1326NTM, OM1326STM, OM1326NKM, OM1326SMM, OM1326NMM, OM1326N2M
ELECTRICAL CHARACTERISTICS
Parameter
Reference Voltage
Symbol
V
REF
-55°C ≤ T
A
≤ 125°C, I
L
= 8mA (unless otherwise specified)
OM1326NTM, OM1326STM, OM1326NKM, OM1326SMM, OM1326NMM
Test Conditions
V
DIFF
= 3.0V, T
A
= 25°C
V
DIFF
= 3.3V
V
DIFF
= 40V
V
DIFF
= 60V
Line Regulation
(Note 1)
R
LINE
3.0V ≤ V
DIFF
≤ 40V, V
out
= V
ref
, T
A
= 25°C
3.3V ≤ V
DIFF
≤ 40V, V
out
= V
ref
40V ≤ V
DIFF
≤ 60V, V
out
= V
ref
, T
A
= 25°C
40V ≤ V
DIFF
≤ 60V, V
out
= V
ref
Load Regulation
(Note 1)
R
LOAD
V
DIFF
= 3.0V, 10mA ≤ I
L
≤ 1.5A, T
A
= 25°C
V
DIFF
= 3.3V, 10mA ≤ I
L
≤ 1.5A
V
DIFF
= 40V, 10mA ≤ I
L
≤ 300mA, T
A
= 25°C
V
DIFF
= 40V, 10mA ≤ I
L
≤ 195mA
V
DIFF
= 60V, 10mA ≤ I
L
≤ 30mA
Thermal Regulation
V
RTH
V
in
= 14.6V, I
L
= 1.5A
P
d
= 20 Watts, t = 20 ms, T
A
= 25°C
Ripple Rejection
(Note 2)
Adjustment Pin Current
I
Adj
R
N
f = 120 Hz, V
out
= V
ref
C
Adj
= 10 µF, I
out
= 100 mA
V
DIFF
= 3.0V, T
A
= 25°C
V
DIFF
= 3.3V
V
DIFF
= 40V
V
DIFF
= 60V
Adjustment Pin
Current Change
∆I
Adj
V
DIFF
= 3.0V, 10mA ≤ I
L
≤ 1.5A, T
A
= 25°C
V
DIFF
= 3.3V, 10mA ≤ I
L
≤ 1.5A
V
DIFF
= 40V, 10mA ≤ I
L
≤ 300mA, T
A
= 25°C
V
DIFF
= 40V, 10mA ≤ I
L
≤ 195mA
3.0V ≤ V
DIFF
≤ 40V, T
A
= 25°C
3.3V ≤ V
DIFF
≤ 40V
3.3V ≤ V
DIFF
≤ 60V
Miminum Load Current
I
Lmin
V
DIFF
= 3.0V, V
out
= 1.4V (forced)
V
DIFF
= 3.3V, V
out
= 1.4V (forced)
V
DIFF
= 40V, V
out
= 1.4V (forced)
V
DIFF
= 60V, V
out
= 1.4V (forced)
Current Limit
(Note 2)
I
CL
V
DIFF
= 5V
V
DIFF
= 40V, T
A
= 25°C
V
DIFF
= 60V, T
A
= 25°C
•
100
Min.
1.238
Max.
1.262
1.270
1.270
1.270
4.5
-9
5
10
15
15
15
15
15
5
mV
mV
mV
V
Unit
•
•
•
•
•
•
•
•
1.225
1.225
1.225
-4.5
-9
-5
-10
-15
-15
-15
-15
-15
-5
•
66
dB
•
•
•
-5
100
100
100
5
5
5
5
5
5
5
5.0
µA
•
-5
-5
-5
-5
µA
•
•
•
•
•
•
-5
-5
5.0
5.0
7.0
1.5
0.3
0.05
3.5
1.5
0.50
mA
A
Notes:
1. Load and Line Regulation are specified at a constant junction temperature. Pulse testing with low duty cycle is used.
Changes in output voltage due to heating effects must be taken into account separately.
2. If not tested, shall be guaranteed to the specified limits.
3. The • denotes the specifications which apply over the full operating temperature range.
3.5
7703407M
7703407U
7703407T
7703407Y
7703407N
77034072
PART NUMBER DESIGNATOR
Standard Military Drawing Number
Omnirel Part Number
OM1326SMM
OM1326STM
OM1326NTM
OM1326NKM
OM1326NMM
OM1326N2M
Omnirel Package Designation
SMD-3
TO-257 (Isolated)
TO-257 (non-Isolated)
TO-3
SMD-1
LCC-20
3.5 - 26
OM1326NTM, OM1326STM, OM1326NKM, OM1326SMM, OM1326NMM, OM1326N2M
ELECTRICAL CHARACTERISTICS
OM1326N2M
Parameter
Reference Voltage
Symbol
V
REF
-55°C ≤ T
A
≤ 125°C, I
L
= 8mA (unless otherwise specified)
Min.
1.238
Max.
1.262
1.270
1.270
1.270
4.5
-9
5
10
15
15
15
15
15
2
mV
mV
mV
V
Unit
Test Conditions
V
DIFF
= 3.0V, T
A
= 25°C
V
DIFF
= 3.3V
V
DIFF
= 40V
V
DIFF
= 60V
•
•
•
•
•
•
•
•
1.225
1.225
1.225
-4.5
-9
-5
-10
-15
-15
-15
-15
-15
-2
Line Regulation
(Note 1)
R
LINE
3.0V ≤ V
DIFF
≤ 40V, V
out
= V
ref
, T
A
= 25°C
3.3V ≤ V
DIFF
≤ 40V, V
out
= V
ref
40V ≤ V
DIFF
≤ 60V, V
out
= V
ref
, T
A
= 25°C
40V ≤ V
DIFF
≤ 60V, V
out
= V
ref
Load Regulation
(Note 1)
R
LOAD
V
DIFF
= 3.0V, 10mA ≤ I
L
≤ 500 mA, T
A
= 25°C
V
DIFF
= 3.3V, 10mA ≤ I
L
≤ 500 mA
V
DIFF
= 40V, 10mA ≤ I
L
≤ 150 mA, T
A
= 25°C
V
DIFF
= 40V, 10mA ≤ I
L
≤ 100 mA
V
DIFF
= 60V, 10mA ≤ I
L
≤ 20 mA
Thermal Regulation
V
RTH
V
in
= 14.6V, I
L
= 300 mA
P
d
= 4.0 Watts, t = 20 ms, T
A
= 25°C
Ripple Rejection
(Note 2)
Adjustment Pin Current
R
N
f = 120 Hz, V
out
= V
ref
C
Adj
= 10 µF, I
out
= 100 mA
•
66
dB
I
Adj
V
DIFF
= 3.0V, T
A
= 25°C
V
DIFF
= 3.3V
V
DIFF
= 40V
V
DIFF
= 60V
100
•
•
•
-5
100
100
100
5
5
5
5
5
5
5
5.0
µA
Adjustment Pin
Current Change
∆I
Adj
V
DIFF
= 3.0V, 10mA ≤ I
L
≤ 500 mA, T
A
= 25°C
V
DIFF
= 3.3V, 10mA ≤ I
L
≤500 mA
V
DIFF
= 40V, 10mA ≤ I
L
≤ 150 mA, T
A
= 25°C
V
DIFF
= 40V, 10mA ≤ I
L
≤ 100 mA
3.0V ≤ V
DIFF
≤ 40V, T
A
= 25°C
3.3V ≤ V
DIFF
≤ 40V
3.3V ≤ V
DIFF
≤ 60V
•
•
-5
-5
-5
-5
µA
•
•
•
•
•
•
-5
-5
Miminum Load Current
I
Lmin
V
DIFF
= 3.0V, V
out
= 1.4V (forced)
V
DIFF
= 3.3V, V
out
= 1.4V (forced)
V
DIFF
= 40V, V
out
= 1.4V (forced)
V
DIFF
= 60V, V
out
= 1.4V (forced)
5.0
5.0
7.0
0.5
0.15
0.02
1.65
0.65
0.28
mA
Current Limit
(Note 2)
I
CL
V
DIFF
= 5V
V
DIFF
= 40V, T
A
= 25°C
V
DIFF
= 60V, T
A
= 25°C
A
Notes: Please see page 34.
STANDARD APPLICATION
* C
in
is required if regulator is located an
appreciable distance from power supply filter.
** C
o
is not needed for stability, however it does
improve transient response.
R
V
out
= 1.25 V (1 +
2
)+ I
Ad j
R
2
R
1
Since I
Adj
is controlled to less than 100 µA,
the error associated with this term is negligible
in most applications.
V
in
OM1326STM
R
1
240Ω
I
Adj
C
in
*
0.1 µF
R
2
Adjust
C
o
**
1.0 µF
V
out
3.5
3.5 - 27
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