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)
60V
26V
LM2931
Internal Power Dissipation
(Notes
2, 4)
Operating Ambient Temperature
Range
Maximum Junction Temperature
Storage Temperature Range
Lead Temp. (Soldering, 10 seconds)
ESD Tolerance (Note 5)
50V
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
3.3
LM2931-3.3
Limit
(Note 3)
3.465
3.135
3.630
2.970
4
10
200
0.4
1.0
33
50
V
MAX
V
MIN
V
MAX
V
MIN
mV
MAX
mV
MAX
mΩ
mA
MAX
Units
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
f
O
= 120Hz
I
O
= 10mA
I
O
= 100mA
Maximum Operational Input
Voltage
Maximum Line Transient
R
L
= 500Ω,
V
O
≤
5.5V,
T = 1ms,
τ ≤
100ms
Reverse Polarity Input Voltage, DC V
O
≥
−0.3V, R
L
= 500Ω
Reverse Polarity Input Voltage,
Transient
T = 1ms,
τ ≤
100ms, R
L
= 500Ω
−30
−80
10Hz -100kHz, C
OUT
= 100μF
15
330
13
80
0.05
0.30
33
70
mA
μV
rms
mV/1000 hr
dB
0.2
0.6
26
50
V
MAX
V
MIN
V
MIN
V
MIN
V
MIN
−15
−50
5
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