SNVS764Q – JANUARY 2000 – REVISED DECEMBER 2017
Electrical Characteristics (continued)
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
(1)
I
L
= 100 µA
I
L
= 100 µA, –40°C
≤
T
J
≤
125°C
I
L
= 100 mA
I
L
= 100 mA, –40°C
≤
T
J
≤
125°C
I
L
= 100 µA
I
L
= 100 µA, –40°C
≤
T
J
≤
125°C
Ground current
I
L
= 100 mA
I
L
= 100 mA, –40°C
≤
T
J
≤
125°C
V
IN
= (V
O
NOM
−
0.5)V, I
L
= 100 µA
V
IN
= (V
O
NOM
−
0.5 V), I
L
= 100 µA, –40°C
≤
T
J
≤
125°C
V
OUT
= 0 V
Current limit
V
OUT
= 0 V, –40°C
≤
T
J
≤
125°C
0.05
430
160
100
LP2951
1.22
Reference voltage
–40°C
≤
T
J
≤
125°C
See
(11)
, –40°C
≤
T
J
≤
125°C
1.2
1.19
20
Feedback pin bias
current
Reference voltage
temperature
coefficient
Feedback pin bias
current
temperature
coefficient
(9)
–40°C
≤
T
J
≤
125°C
See
(6)
1.235
1.25
1.26
1.2
1.27
1.19
40
60
60
20
20
50
60
20
1.27
40
1.185
20
1.285
40
1.26 1
1.2
1.27
160
110
8
75
380
LP2951
(2)
MIN
TYP
50
MAX
80
150
150
450
600
120
140
140
12
14
14
170
200
110
170
200
200
200
220
220
0.2
0.05
430
160
100
LP2951AC-XX
1.22
1.235
1.25
0.2
0.05
430
160
100
LP2951C-XX
1.21
1.235
1.26
V
(4)
V
(4)
V
(5)
V
(4)
V
(5)
nA
(4)
nA
(4)
LP2950AC-XX
LP2951AC-XX
MIN
TYP
50
MAX
80
LP2950C-XX
LP2951C-XX
MIN
TYP
50
MAX
80
150
380
450
600
600
75
120
140
8
12
14
110
170
200
200
160
200
220
0.2
UNIT
mV
(4)
mV
(4)
mV
(5)
mV
(4)
mV
(4)
mV
(5)
µA
(4)
µA
(4)
µA
(5)
mA
(4)
mA
(4)
mA
(5)
µA
(4)
µA
(4)
µA
(5)
mA
(4)
mA
(4)
mA
(5)
%/W
(4)
µV
RMS
µV
RMS
µV
RMS
Dropout voltage
(9)
380
450
600
600
75
120
8
12
Dropout ground
current
160
200
Thermal regulation See
(10)
C
L
= 1µF (5 V Only)
Output noise
10 Hz to 100 kHz
C
L
= 200 µF
C
L
= 3.3 µF
(Bypass = 0.01 µF
Pins 7 to 1 (LP2951-N)
8-PIN VERSIONS ONLY
Reference voltage
nA
(5)
ppm/°C
0.1
0.1
0.1
nA/°C
Dropout voltage is defined as the input to output differential at which the output voltage drops 100 mV below its nominal value measured
at 1-V differential. At very low values of programmed output voltage, the minimum input supply voltage of 2 V (2.3 V over temperature)
must be taken into account.
(10) Thermal regulation is defined as the change in output voltage at a time T after a change in power dissipation is applied, excluding load
or line regulation effects. Specifications are for a 50 mA load pulse at V
IN
= 30 V (1.25-W pulse) for T = 10 ms.
(11) V
REF
≤
V
OUT
≤
(V
IN
−
1 V), 2.3 V
≤
V
IN
≤
30 V, 100 µA
≤
I
L
≤
100 mA, T
J
≤
T
JMAX
.
8
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