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