
0.1A LOW DROPOUT VOLTAGE REGULATORS
LM2931
ABSOLUTE MAXIMUM RATINGS
Lead Temperature (Soldering, 5 seconds)
Storage Temperature Range
Operating Junction Temperature Range
Input Supply Voltage
ELECTRICAL CHARACTERISTICS(at Tj=25℃, Io=100, Vin=14V, Co=100 ; unless otherwise noted)
CONDITIONS (Note 2)
PARAMETER
-25℃ ≤T
J
≤85℃
Full Operating Temperature
100≤I
L
≤100,T
J
≤T
JMAX
0.985|V
0
|
0.980|V
0
|
0.975|V
0
|
1.015|V
0
|
1.020|V
0
|
1.025|V
0
|
26
Output Voltage (Fixed Model)
Input Supply Voltage
Output Voltage Temperature Coefficient
(Note 1)
13V≤V
IN
≤26V (Note 3)
1mA≤I
L
≤100
I
L
=10mA
I
L
=100
I
L
=100
I
L
=10
I
L
=100
V
IN
=V
0
-0.5V,
I
L
=100
V
OUT
=0
Line Regulation (Note 2)
Load Regulation (Note 2)
Dropout Ground Current (Note 5)
Current Limit
Thermal Regulation (Note 6)
C
L
=2.2
C
L
=3.3
C
L
=33
Shutdown Input
Low (Regulator ON)
High (Regulator OFF)
V
S
=2.4V
V
S
=26V
(Note 8)
5.0V≤V
OUT
<15.0V
3.3V≤V
OUT
<5.0V
Note 1 : Output or reference voltage temperature coefficients defined as the worst case voltage change divided by the
total temperature range.
Note 2 : Regulations is measured at constant junction temperature, using pulse testing with a low duty cycle.
Changes in output voltage due to heating effects are covered under the specification for thermal regulation.
Note 3 : Line regulation is tested at 150℃ for IL = 1mA. For IL = 100 and TJ = 125℃, line regulation is guaranteed by
value measured at 1V differential.
Note 4 : Dropout voltage is defined as the input to output differential at which the output voltage drops 2%
below its nominal value measured at 1V differential.
Note 5 : Ground pin current is the regulator quiescent current. The Total current drawn from the source is the sum of the
ground pin current and output load current.
Note 6 : Thermal Regulation is the change in output voltage at a time T after a change in power dissipation, excluding
load or line regulation effects. Specifications are for a 50mA load puls (1.25W) for T = 10ms
Note 7 : V
REF
≤V
OUT
≤(V
IN
-1V), 2.3V≤V
IN
≤26V, 100≤I
L
≤100, T
J
≤T
JMAX
Note 8 : Vshuntdown≥2V, V
IN
≤26V, Vout≤0V
HTC
120
V
30
50
600
10
450
μVr
0.05
500
350
%/W
0.2
170
200
110
160
MIN
TYP
V
0
0.1
Shutdown Pin Input Current
Input Logic Voltage
Output Voltage (Fixed Model)
Dropout Voltage (Note 4)
Ground Current (Note 5)
Output Noise, 10Hz to 100kHz I
L
= 10 mA
2.0V≤V
OUT
<3.3V
Regulator Output Current Shutdown
20
30
-20 to +30V
300
100
V
0
V
50
0.1
ppm/℃
INTERNALLY LIMITED
260℃
-65℃ to +150℃
-55℃ to +150℃
200
600
%
%
UNITS
60
MAX
150
2
POWER DISSIPATION
2
1.3
0.7
0.9
1.5
0.4
0.3
150
12
8