LM2937

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

3 of 10

www.unisonic.com.tw

QW-R102-012.I



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

Junction to Ambient

SOT-223

174

C/W

TO-220

65

TO-263/ TO-263-5

73

Junction to Case

SOT-223

15

TO-220

3

TO-263/ TO-263-5

4



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

△

9

30

mV

Load Regulation

△

3

30

mV

Quiescent Current

2

10

mA

10

20

mA

Output Noise Voltage

eN

100

μVrms

Long Term Stability

1000Hrs

12

mV

Dropout Voltage

0.5

1.0

V

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