LP2950-N Datasheet, PDF (5/43 Pages) Texas Instruments – 5V, 3V, and 3.3V Versions Available, High Accuracy Output Voltage

LP2950-N, LP2951-N
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ELECTRICAL CHARACTERISTICS⁽¹⁾ (continued)
Parameter
Load Regulation⁽⁷⁾
Dropout Voltage⁽⁹⁾
Conditions ⁽¹⁾
100 μA ≤ I_L ≤ 100 mA
I_L = 100 μA
LP2951
Typ
0.04
Tested
Limit ^{(2) (3)}
0.1
0.3
80
50
150
I_L = 100 mA
450
380
600
Ground Current
I_L = 100 μA
I_L = 100 mA
75
120
140
8
12
14
Dropout Ground
Current
Current Limit
V_in = (V_ONOM − 0.5)V
I_L = 100 μA
V_out = 0
Thermal Regulation
See ⁽¹⁰⁾
110
170
200
160
200
220
0.05
0.2
Output Noise, 10 Hz to
100 kHz
8-pin Versions Only
Reference Voltage
C_L = 1μF (5V Only)
C_L = 200 μF
C_L = 3.3 μF
(Bypass = 0.01 μF
Pins 7 to 1 (LP2951-N)
Reference Voltage
See ⁽¹¹⁾
Feedback Pin Bias
Current
Reference Voltage
Temperature
Coefficient
Feedback Pin Bias
Current Temperature
Coefficient
See ⁽¹²⁾
430
160
100
LP2951
1.23
1.25
5
1.26
1.22
1.2
1.27
1.19
20
40
60
20
0.1
SNVS764N – JANUARY 2000 – REVISED MAY 2013
LP2950AC-XX
LP2951AC-XX
LP2950C-XX
LP2951C-XX
Typ Tested Design Typ Tested Design
Limit⁽²⁾ Limit⁽⁴⁾
Limit⁽²⁾ Limit⁽⁴⁾
Units
0.04 0.1
0.1 0.2
% max
0.2
0.3 % max
80
80
mV
max
50
150 50
150
mV
max
450
450
mV
max
380
600 380
600
mV
max
75 120
75 120
μA max
140
140 μA max
8
12
8
12
mA
max
14
14
mA
max
110 170
110 170
μA max
200
200 μA max
160 200
160 200
mA
max
220
220
mA
max
0.05 0.2
0.05 0.2
%/W
max
430
430
μV rms
160
160
μV rms
100
100
μV rms
LP2951AC-XX
1.23 1.25
5
1.26
1.22
1.2
1.27
1.19
20
40
60
20
LP2951C-XX
1.23 1.26
5
1.27
1.21
1.2
1.285
1.185
20
40
60
50
V max
V max
V min
V min
V max
V min
nA max
nA max
ppm/°C
0.1
0.1
nA/°C
(9) Dropout Voltage is defined as the input to output differential at which the output voltage drops 100 mV below its nominal value
measured at 1V differential. At very low values of programmed output voltage, the minimum input supply voltage of 2V (2.3V 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 = 30V (1.25W pulse) for T = 10ms.
(11) V_REF ≤ V_OUT ≤ (V_IN − 1V), 2.3V ≤ V_IN ≤ 30V, 100 μA ≤ I_L ≤ 100 mA, T_J ≤ T_JMAX.
(12) Output or reference voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range.
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