LM2937

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

3 of 10

www.unisonic.com.tw

QW-R102-012.F

PARAMETER

SYMBOL

RATINGS

UNIT

Input Voltage

26

V

Power Dissipation(Note 2)

Internally limited

Maximum Junction Temperature

+150

°C

Storage Temperature

-40 ~ +150

°C

Note 1. Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Electrical

Specifications do not apply when operating the device outside of its rated Operating Conditions.

ambient thermal resistance. If this dissipation is exceeded, the die temperature will rise above 125

°C and

the electrical specifications do not apply. If the die temperature rises above 150

°C, the LM2937 will go into

thermal shutdown.

THERMAL DATA

PARAMETER

SYMBOL

RATINGS

UNIT

TO-220

65

TO-263

73

Thermal Resistance Junction- Ambient

TO-263-5

73

TO-220

3

TO-263

4

Thermal Resistance Junction- Case

TO-263-5

4

°C/W

ELECTRICAL CHARACTERISTICS

For LM2937-3.3V

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Output Voltage

3.21

3.30

3.39

V

Line Regulation

V

9

30

mV

Load Regulation

V

3

30

mV

2

10

mA

Quiescent Current

10

20

mA

Output Noise Voltage

eN

100

µVrms

Long Term Stability

1000Hrs

12

mV

0.5

1.0

V

Dropout Voltage

110

250

mV

Short Circuit Current

0.6

1.0

A

Peak Line Transient Voltage

60

75

V

Reverse DC Input Voltage

-15

-30

V

Reverse Transient Input Voltage

-50

-75

V

For LM2937-5.0V

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Output Voltage

4.85

5.00

5.15

V

Line Regulation

V

15

50

mV

Load Regulation

V

5

50

mV

2

10

mA

Quiescent Current

10

20

mA

Output Noise Voltage

eN

150

µVrms

Long Term Stability

1000Hrs

20

mV

0.5

1.0

V

Dropout Voltage

110

250

mV