Datasheet

LM137, LM337-N
www.ti.com SNVS778D –MAY 1999–REVISED APRIL 2013
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
ABSOLUTE MAXIMUM RATINGS
(1)(2)
Power Dissipation Internally Limited
Input-Output Voltage Differential 40V
Operating Junction Temperature Range
LM137 −55°C to +150°C
LM337-N 0°C to +125°C
LM337I −40°C to +125°C
Storage Temperature −65°C to +150°C
Lead Temperature (Soldering, 10 sec.) 300°C
Plastic Package (Soldering, 4 sec.) 260°C
ESD Rating 2k Volts
(1) Refer to RETS137H drawing for LM137H or RETS137K drawing for LM137K military specifications.
(2) Unless otherwise specified, these specifications apply −55°C ≤ T
j
≤ +150°C for the LM137, 0°C ≤ T
j
≤ +125°C for the LM337-N; V
IN
−
V
OUT
= 5V; and I
OUT
= 0.1A for the TO package and I
OUT
= 0.5A for the TO-3, SOT-223 and TO-220 packages. Although power
dissipation is internally limited, these specifications are applicable for power dissipations of 2W for the TO and SOT-223 (see
APPLICATION HINTS), and 20W for the TO-3, and TO-220. I
MAX
is 1.5A for the TO-3, SOT-223 and TO-220 packages, and 0.2A for the
TO package.
ELECTRICAL CHARACTERISTICS
(1)
Parameter Conditions LM137 LM337 Units
Min Typ Max Min Typ Max
Line Regulation T
j
= 25°C, 3V ≤ |V
IN
− V
OUT
| ≤ 40V 0.01 0.02 0.01 0.04 %/V
(2)
I
L
= 10 mA
Load Regulation T
j
= 25°C, 10 mA ≤ I
OUT
≤ I
MAX
0.3 0.5 0.3 1.0 %
Thermal Regulation T
j
= 25°C, 10 ms Pulse 0.002 0.02 0.003 0.04 %/W
Adjustment Pin Current 65 100 65 100 μA
Adjustment Pin Current Charge 10 mA ≤ I
L
≤ I
MAX
2 5 2 5 μA
3.0V ≤ |V
IN
− V
OUT
| ≤ 40V,
T
A
= 25°C
Reference Voltage T
j
= 25°C
(3)
−1.225 −1.250 −1.275 −1.213 −1.250 −1.287 V
3V ≤ |V
IN
− V
OUT
| ≤ 40V,
(3)
−1.200 −1.250 −1.300 −1.200 −1.250 −1.300 V
10 mA ≤ I
OUT
≤ I
MAX
, P ≤ P
MAX
Line Regulation 3V ≤ |V
IN
− V
OUT
| ≤ 40V,
(2)
0.02 0.05 0.02 0.07 %/V
Load Regulation 10 mA ≤ I
OUT
≤ I
MAX
,
(2)
0.3 1 0.3 1.5 %
Temperature Stability T
MIN
≤ T
j
≤ T
MAX
0.6 0.6 %
Minimum Load Current |V
IN
− V
OUT
| ≤ 40V 2.5 5 2.5 10 mA
|V
IN
− V
OUT
| ≤ 10V 1.2 3 1.5 6 mA
(1) Unless otherwise specified, these specifications apply −55°C ≤ T
j
≤ +150°C for the LM137, 0°C ≤ T
j
≤ +125°C for the LM337-N; V
IN
−
V
OUT
= 5V; and I
OUT
= 0.1A for the TO package and I
OUT
= 0.5A for the TO-3, SOT-223 and TO-220 packages. Although power
dissipation is internally limited, these specifications are applicable for power dissipations of 2W for the TO and SOT-223 (see
APPLICATION HINTS), and 20W for the TO-3, and TO-220. I
MAX
is 1.5A for the TO-3, SOT-223 and TO-220 packages, and 0.2A for the
TO package.
(2) Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to
heating effects are covered under the specification for thermal regulation. Load regulation is measured on the output pin at a point ⅛ in.
below the base of the TO-3 and TO packages.
(3) Selected devices with tightened tolerance reference voltage available.
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