Datasheet

LM2940-N, LM2940C
SNVS769I –MARCH 2000–REVISED APRIL 2013 www.ti.com
Electrical Characteristics (continued)
V
IN
= V
O
+ 5V, I
O
= 1A, C
O
= 22 μF, unless otherwise specified. Boldface limits apply over the entire operating
temperature range of the indicated device. All other specifications apply for T
A
= T
J
= 25°C.
Output Voltage (V
O
) 9V 10V
LM2940-N LM2940-N
Units
Parameter Conditions Typ Limit Typ Limit
(1) (1)
Maximum Line Transient R
O
= 100Ω
T ≤ 100 ms
LM2940-N 75 60/60 75 60/60 V
MIN
LM2940C 55 45
Reverse Polarity R
O
= 100Ω
DC Input Voltage
LM2940-N −30 −15/−15 −30 −15/−15 V
MIN
LM2940C −30 −15
Reverse Polarity R
O
= 100Ω
Transient Input Voltage
T ≤ 100 ms
LM2940-N −75 −50/−50 −75 −50/−50 V
MIN
LM2940C −55 −45/−45
Electrical Characteristics
V
IN
= V
O
+ 5V, I
O
= 1A, C
O
= 22 μF, unless otherwise specified. Boldface limits apply over the entire operating
temperature range of the indicated device. All other specifications apply for T
A
= T
J
= 25°C.
Output Voltage (V
O
) 12V 15V
Parameter Conditions Typ LM2940-N LM2940- Typ LM2940-N LM2940-
Units
Limit
(1)
N/833 Limit
(1)
N/833
Limit
(2)
Limit
(2)
Output Voltage 13.6V ≤ V
IN
≤ 26V 16.75V ≤ V
IN
≤ 26V
5 mA ≤ I
O
≤1A 12.0 11.64/11.40 11.64/11.40 15.0 14.55/14.25 14.55/14.25 V
MIN
0 0
12.36/12.60 12.36/12.60 15.45/15.75 15.45/15.75 V
MAX
Line Regulation V
O
+ 2V ≤ V
IN
≤ 26V, 20 120 75/120 20 150 95/150 mV
MAX
I
O
= 5 mA
Load Regulation 50 mA ≤ I
O
≤ 1A
LM2940-N, LM2940-N/883 55 120/200 120/190 150/240 mV
MAX
LM2940C 55 120 70 150
Output Impedance 100 mADC and
20 mArms, 80 1000/1000 100 1000/1000 mΩ
f
O
= 120 Hz
Quiescent V
O
+2V ≤ V
IN
≤ 26V,
Current
I
O
= 5 mA
LM2940-N, LM2940-N/883 10 15/20 15/20 15/20 mA
MAX
LM2940C 10 15 10 15
V
IN
= V
O
+ 5V, I
O
= 1A 30 45/60 50/60 30 45/60 50/60 mA
MAX
Output Noise 10 Hz − 100 kHz, 360 1000/1000 450 1000/1000 μV
rms
Voltage
I
O
= 5 mA
(1) All limits are specified at T
A
= T
J
= 25°C only (standard typeface) or over the entire operating temperature range of the indicated device
(boldface type). All limits at T
A
= T
J
= 25°C are 100% production tested. All limits at temperature extremes are specified via correlation
using standard Statistical Quality Control methods.
(2) All limits are specified at T
A
= T
J
= 25°C only (standard typeface) or over the entire operating temperature range of the indicated device
(boldface type). All limits are 100% production tested and are used to calculate Outgoing Quality Levels.
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