LM137, LM337-N

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SNVS778E – MAY 1999 – REVISED JANUARY 2016

6.5 Electrical Characteristics

Unless otherwise specified, these specifications apply

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

LM137

LM337-N

PARAMETER

TEST CONDITIONS

UNIT

MIN

TYP

MAX

MIN

TYP

MAX

(1)

Line regulation

0.01

0.02

0.01

0.04

%/V

Load regulation

0.3%

0.5%

0.3%

1%

Thermal regulation

0.002

0.02

0.003

0.04

%/W

Adjustment pin current

65

100

65

100

μA

10 mA

Adjustment pin current charge

3 V

2

5

2

5

μA

(2)

−1.225

−1.25

−1.275

−1.213

−1.25

−1.287

V

3 V

(2)

Reference voltage

10 mA

−1.2

−1.25

−1.3

−1.2

−1.25

−1.3

V

Line regulation

3 V

(1)

0.02

0.05

0.02

0.07

%/V

Load regulation

10 mA

(1)

0.3%

1%

0.3%

1.5%

Temperature stability

0.6%

0.6%

2.5

5

2.5

10

mA

Minimum load current

1.2

3

1.5

6

mA

K, DCY and NDE

1.5

2.2

3.5

1.5

2.2

3.7

A

package

NDT package

0.5

0.8

1.8

0.5

0.8

1.9

A

Current limit

K, DCY and NDE

0.24

0.4

0.15

0.4

A

package

NDT package

0.15

0.17

0.1

0.17

A

0.003%

0.003%

60

60

dB

Ripple rejection ratio

66

77

66

77

dB

Long-term stability

0.3%

1%

0.3%

1%

(1)

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 packages.

(2)

Selected devices with tightened tolerance reference voltage available.

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