LP2951-N_15_15 Datasheet, PDF (7/50 Pages) Texas Instruments – LP295x-N Series of Adjustable Micropower Voltage Regulators

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LP2950-N, LP2951-N
SNVS764O – JANUARY 2000 – REVISED DECEMBER 2014
Electrical Characteristics (continued)
over operating free-air temperature range (unless otherwise noted)⁽¹⁾
PARAMETER
TEST CONDITIONS⁽¹⁾
Dropout voltage⁽⁹⁾
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
LP2951 ⁽²⁾
MIN TYP
50
MAX
80
150
380
450
600
Ground current
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
75
120
140
8
12
14
Dropout ground
current
V_in = (V_ONOM − 0.5)V, I_L
= 100 μA
V_in = (V_ONOM − 0.5)V, I_L
= 100 μA, –40°C ≤ T_J ≤
125°C
Current limit
V_out = 0
V_out = 0, –40°C ≤ T_J ≤
125°C
Thermal 4egulation See⁽¹⁰⁾
Output noise
10 Hz to 100 kHz
C_L = 1μF (5 V Only)
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
–40°C ≤ T_J ≤ 125°C
110
170
200
160
200
220
0.05
0.2
430
160
100
LP2951
1.22 1.235 1.25
1.2
1.26
Reference voltage
See⁽¹¹⁾, –40°C ≤ T_J ≤
125°C
Feedback pin bias
current
–40°C ≤ T_J ≤ 125°C
1.19
1.27
20
40
60
Reference voltage
temperature
See ⁽⁶⁾
20
coefficient
Feedback pin bias
current
temperature
0.1
coefficient
LP2950AC-XX
LP2951AC-XX
MIN TYP MAX
50
80
150
380 450
600
600
75 120
140
8
12
14
110 170
200
200
160 200
220
0.05 0.2
430
160
LP2950C-XX
LP2951C-XX
MIN TYP MAX
50
80
150
380 450
600
600
75 120
140
8
12
14
110 170
200
200
160 200
220
0.05 0.2
430
160
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
100
100
μV rms
LP2951AC-XX
1.22 1.235 1.25
LP2951C-XX
1.21 1.235 1.26
1.2
1.26 1 1.2
1.27
1.19
1.27 1.185
1.285
20
40
20
40
60
60
V ⁽⁴⁾
V ⁽⁴⁾
V ⁽⁵⁾
V ⁽⁴⁾
V ⁽⁵⁾
nA ⁽⁴⁾
nA ⁽⁴⁾
nA ⁽⁵⁾
20
50
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 1-V differential. At very low values of programmed output voltage, the minimum input supply voltage of 2 V (2.3 V
overtemperature) 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.
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