
LM78L15AC
Unless otherwise specified, V
IN
= 23V
Symbol
V
O
Output Voltage
Parameter
Conditions
Min
14.4
Typ
15.0
Max
15.6
Units
V
17.5V
 ≤
 V
IN
≤
 30V
1 mA
 ≤
 I
O
≤
 40 mA
(Note 3)
1 mA
 ≤
 I
O
≤
 70 mA
(Note 3)
17.5V
 ≤
 V
IN
≤
 30V
20V
 ≤
 V
IN
≤
 30V
1 mA
 ≤
 I
O
≤
 100 mA
1 mA
 ≤
 I
O
≤
 40 mA
14.25
15.75
14.25
15.75
V
O
Line Regulation
37
25
35
12
3
250
140
150
75
5
1
0.1
mV
V
O
Load Regulation
I
Q
Quiescent Current
Quiescent Current Change
mA
I
Q
20V
 ≤
 V
IN
≤
 30V
1 mA
 ≤
 I
O
≤
 40 mA
V
n
Output Noise Voltage
Ripple Rejection
90
μV
f = 120 Hz
18.5V
 ≤
 V
IN
≤
 28.5V
37
51
dB
I
PK
Peak Output Current
Average Output Voltage Tempco
140
mA
I
O
= 5 mA
1.3
mV/C
V
IN
(Min)
Minimum Value of Input Voltage
Required to Maintain Line Regulation
16.7
17.5
V
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 stated operating conditions.
Note 2:
 Human body model, 1.5 k
 in series with 100 pF.
Note 3:
 Power dissipation
 ≤
 0.75W.
Note 4:
 Recommended minimum load capacitance of 0.01 μF to limit high frequency noise.
Note 5:
 Typical thermal resistance values for the packages are:
Z
 Package:
 θ
JC
= 60 C/W, =
 θ
JA
= 230 C/W
M
 Package:
 θ
JA
= 180 C/W
micro SMD
 Package:
 θ
JA
= 230.9C/W
L
www.national.com
5