Electrical Characteristics

V

age, C

indicted device., all other specifications are for T

Output Voltage (V

12V

15V

Units

Parameter

Conditions

Typ

Limit

Typ

Limit

Output Voltage

5 mA

≤ I

11.64

14.55

V (Min)

12.00

11.40

15.00

14.25

V(Min)

12.36

15.45

V(Max)

12.60

15.75

V(Max)

Line Regulation

(V

36

120

45

150

mV(Max)

I

Load Regulation

5 mA

≤ I

12

120

15

150

mV(Max)

Quiescent Current

(V

2

10

2

10

mA(Max)

I

V

10

20

10

20

mA(Max)

I

Output Noise

10 Hz–100 kHz,

360

450

µVrms

Voltage

I

Long Term Stability

1000 Hrs.

44

56

mV

Dropout Voltage

I

0.5

1.0

0.5

1.0

V(Max)

I

110

250

110

250

mV(Max)

Short-Circuit Current

1.0

0.6

1.0

0.6

A(Min)

Peak Line Transient

t

75

60

75

60

V(Min)

Voltage

Maximum Operational

26

26

V(Min)

Input Voltage

Reverse DC

V

−30

−15

−30

−15

V(Min)

Input Voltage

Reverse Transient

t

−75

−50

−75

−50

V(Min)

Input Voltage

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.

and the electrical specifications do not apply. If the die temperature rises above 150˚C, the LM2937 will go into thermal shutdown. For the LM2937, the

junction-to-ambient thermal resistance

with a heatsink,

or SOT-223 packages are used, the thermal resistance can be reduced by increasing the P.C. board copper area thermally connected to the package (see Application

Hints for more information on heatsinking).

Note 3: ESD rating is based on the human body model, 100 pF discharged through 1.5 k

Ω.

www.national.com

4