LP3875EMP-ADJ-NOPB Datasheet, PDF (5/20 Pages) Texas Instruments – Ultra Low Dropout Voltage, Load Regulation of 0.06%

LP3875-ADJ
www.ti.com
SNVS247D – SEPTEMBER 2003 – REVISED APRIL 2013
TYPICAL PERFORMANCE CHARACTERISTICS
Unless otherwise specified: T_J = 25°C, C_OUT = 10µF, C_IN = 10µF, S/D pin is tied to V_IN, V_OUT = 2.5V, V_IN = V_O(NOM) + 1V, I_L =
10mA
Dropout Voltage vs Output Load Current
600
Ground Curren vs Output Voltage
I_L = 1.5A
6
500
5
o
125
C
400
25^{o C}
4
300
3
200
-40^{o C}
2
100
1
0
0
0.5
1
1.5
OUTPUT LOAD CURRENT (A)
Figure 5.
0
1.8 2.3 2.8 3.3 3.8 4.3 4.8
OUTPUT VOLTAGE (V)
Figure 6.
Shutdown I_Q vs Junction Temperature
10
DC Load Reg. vs Junction Temperature
3
2.5
1
2
0.1
1.5
0.01
0.001
-40 -20 0 20 40 60 80 100 125
TEMPERATURE (^oC)
Figure 7.
1
0.5
0
-40 -20 0 20 40 60 80 100 125
JUNCTION TEMPERATURE (^oC)
Figure 8.
DC Line Regulation vs Temperature
3
3.000
Noise vs Frequency
2.5
2.500
IL = 100mA
CIN = COUT = 10PF
2
2.000
1.5
1.500
1
1.000
0.5
0
-40 -20 0 20 40 60 80 100 125
JUNCTION TEMPERATURE (^oC)
Figure 9.
0.500
0.000
100
1k
10k
100k
FREQUENCY (Hz)
Figure 10.
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