Datasheet

Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Input Voltage 35V
Power Dissipation Internally Limited
Operating Junction Temperature Range
LM109 −55˚C to +150˚C
LM309 0˚C to +125˚C
Storage Temperature Range −65˚C to +150˚C
Lead Temperature
(Soldering, 10 sec.) 300˚C
Electrical Characteristics (Note 2)
Parameter Conditions LM109 LM309 Units
Min Typ Max Min Typ Max
Output Voltage T
j
= 25˚C 4.7 5.05 5.3 4.8 5.05 5.2 V
Line Regulation T
j
= 25˚C 4.0 50 4.0 50 mV
7.10V ≤ V
IN
≤ 25V
Load Regulation T
j
= 25˚C
TO-39 Package 5 mA ≤ I
OUT
≤ 0.5A 15 50 15 50 mV
TO-3 Package 5 mA ≤ I
OUT
≤ 1.5A 15 100 15 100 mV
Output Voltage 7.40V ≤ V
IN
≤ 25V, 4.6 5.4 4.75 5.25 V
5mA≤I
OUT
≤ I
MAX
,
P
<
P
MAX
Quiescent Current 7.40V ≤ V
IN
≤ 25V 5.2 10 5.2 10 mA
Quiescent Current Change 7.40V ≤ V
IN
≤ 25V 0.5 0.5 mA
5mA≤I
OUT
≤ I
MAX
0.8 0.8 mA
Output Noise Voltage T
A
= 25˚C 40 40 µV
10 Hz ≤ f ≤ 100 kHz
Long Term Stability 10 20 mV
Ripple Rejection T
j
= 25˚C 50 50 dB
Thermal Resistance, (Note 3)
Junction to Case
TO-39 Package 15 15 ˚C/W
TO-3 Package 2.5 2.5 ˚C/W
Note 1: “Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
functional, but do not guarantee specific performance limits.
Note 2: Unless otherwise specified, these specifications apply −55˚C ≤ T
j
≤ +150˚C for the LM109 and 0˚C ≤ T
j
≤ +125˚C for the LM309; V
IN
= 10V; and I
OUT
=
0.1A for the TO-39 package or I
OUT
= 0.5A for the TO-3 package. For the TO-39 package, I
MAX
= 0.2A and P
MAX
= 2.0W. For the TO-3 package, I
MAX
= 1.0A and
P
MAX
= 20W.
Note 3: Without a heat sink, the thermal resistance of the TO-39 package is about 150˚C/W, while that of the TO-3 package is approximately 35˚C/W. With a heat
sink, the effective thermal resistance can only approach the values specified, depending on the efficiency of the sink.
Note 4: Refer to RETS109H drawing for LM109H or RETS109K drawing for LM109K military specifications.
Connection Diagrams
Metal Can Packages
DS007138-33
Order Number LM109H, LM109H/883 or LM309H
See NS Package Number H03A
DS007138-34
Order Number LM109K STEEL or
LM309K STEEL
See NS Package Number K02A
Order Number LM109K/883
See NS Package Number K02C
LM109/LM309
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