LM137, LM337-N

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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

dissipation is internally limited, these specifications are applicable for power dissipations of 2W for the TO and SOT-223 (see

TO package.

ELECTRICAL CHARACTERISTICS

(1)

Parameter

Conditions

LM137

LM337

Units

Min

Typ

Max

Min

Typ

Max

Line Regulation

0.01

0.02

0.01

0.04

%/V

Load Regulation

0.3

0.5

0.3

1.0

%

Thermal Regulation

0.002

0.02

0.003

0.04

%/W

Adjustment Pin Current

65

100

65

100

μA

Adjustment Pin Current Charge

10 mA

2

5

2

5

μA

3.0V

Reference Voltage

(3)

−1.225 −1.250 −1.275 −1.213 −1.250 −1.287

V

3V

(3)

−1.200 −1.250 −1.300 −1.200 −1.250 −1.300

V

10 mA

Line Regulation

3V

(2)

0.02

0.05

0.02

0.07

%/V

Load Regulation

10 mA

(2)

0.3

1

0.3

1.5

%

Temperature Stability

0.6

0.6

%

Minimum Load Current

2.5

5

2.5

10

mA

1.2

3

1.5

6

mA

(1)

Unless otherwise specified, these specifications apply

dissipation is internally limited, these specifications are applicable for power dissipations of 2W for the TO and SOT-223 (see

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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