LM2931
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Input Voltage
Operating Range
Overvoltage Protection
LM2931A, LM2931C (Adjustable)
LM2931
26V
60V
50V
Internal Power Dissipation
(Note 2) (Note 4)
Operating Ambient Temperature
Range
Maximum Junction Temperature
Storage Temperature Range
Lead Temp. (Soldering, 10 seconds)
ESD Tolerance (Note 5)
Internally Limited
−40˚C to +85˚C
125˚C
−65˚C to +150˚C
230˚C
2000V
Electrical Characteristics for Fixed 3.3V Version
V
IN
= 14V, I
O
= 10mA, T
J
= 25˚C, C
2
= 100µF (unless otherwise specified) (Note 2)
Parameter
Conditions
Typ
Output Voltage
4V
≤
V
IN
≤
26V, I
O
= 100 mA
−40˚C
≤
T
J
≤
125˚C
Line Regulation
Load Regulation
Output Impedance
Quiescent Current
4V
≤
V
IN
≤
26V
5mA
≤
I
O
≤
100mA
100mA
DC
and 10mA
rms
,
100Hz - 10kHz
I
O
≤
10mA, 4V
≤
V
IN
≤
26V
−40˚C
≤
T
J
≤
125˚C
I
O
= 100mA, V
IN
= 14V, T
J
= 25˚C
Output Noise Voltage
Long Term Stability
Ripple Rejection
Dropout Voltage
Maximum Operational
Input Voltage
Maximum Line Transient
Reverse Polarity Input
Voltage, DC
Reverse Polarity Input
Voltage, Transient
R
L
= 500Ω, V
O
≤
5.5V,
T = 1ms,
τ ≤
100ms
V
O
≥
−0.3V, R
L
= 500Ω
T = 1ms,
τ ≤
100ms, R
L
= 500Ω
f
O
= 120Hz
I
O
= 10mA
I
O
= 100mA
10Hz -100kHz, C
OUT
= 100µF
15
330
13
80
0.05
0.30
33
70
−30
−80
0.2
0.6
26
50
−15
−50
mA
µV
rms
mV/1000 hr
dB
V
MAX
V
MIN
V
MIN
V
MIN
V
MIN
4
10
200
0.4
1.0
3.3
LM2931-3.3
Limit
(Note 3)
3.465
3.135
3.630
2.970
33
50
V
MAX
V
MIN
V
MAX
V
MIN
mV
MAX
mV
MAX
mΩ
mA
MAX
Units
Electrical Characteristics for Fixed 5V Version
V
IN
= 14V, I
O
= 10mA, T
J
= 25˚C, C2 = 100 µF (unless otherwise specified) (Note 2)
Parameter
Conditions
LM2931A-5.0
Typ
Output Voltage
6.0V
≤
V
IN
≤
26V, I
O
= 100mA
−40˚C
≤
T
J
≤
125˚C
Line Regulation
Load Regulation
Output Impedance
9V
≤
V
IN
≤
16V
6V
≤
V
IN
≤
26V
5 mA
≤
I
O
≤
100mA
100mA
DC
and 10mA
rms
,
100Hz -10kHz
2
4
14
200
5
Limit
(Note 3)
5.19
4.81
5.25
4.75
10
30
50
2
4
14
200
LM2931-5.0
Typ
5
Limit
(Note 3)
5.25
4.75
5.5
4.5
10
30
50
V
MAX
V
MIN
V
MAX
V
MIN
mV
MAX
mV
MAX
mΩ
Units
5
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