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| LP3876-ADJ Datasheet, PDF (6/19 Pages) National Semiconductor (TI) – 3A Fast Ultra Low Dropout Linear Regulator | |||
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LP3876-ADJ
SNVS245C â SEPTEMBER 2003 â REVISED APRIL 2013
www.ti.com
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Unless otherwise specified: TJ = 25°C, COUT = 10µF, CIN = 10µF, S/D pin is tied to VIN, VOUT = 2.5V, VIN = VO(NOM) + 1.5V, IL =
10mA
VIN vs VOUT Over Temperature
3.0
3.000
Noise vs Frequency
2.5
2.500
IL = 100mA
CIN = COUT = 10PF
2.0
2.000
1.5
-40oC
1.0
25oC
0.5
125oC
0.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
VIN (V)
Figure 9.
1.500
1.000
0.500
0.000
100
1k
10k
100k
FREQUENCY (Hz)
Figure 10.
Load Transient Response CIN = COUT = 10µF, OSCON
Load Transient Response CIN = COUT = 100µF, OSCON
VOUT
100mV/DIV
VOUT
100mV/DIV
ILOAD
3A/DIV
TIME (50Ps/DIV)
Figure 11.
Load Transient Response CIN = COUT = 100µF, POSCAP
VOUT
100mV/DIV
ILOAD
3A/DIV
TIME (50Ps/DIV)
Figure 12.
Load Transient Response CIN = COUT = 10µF, TANTALUM
VOUT
100mV/DIV
ILOAD
3A/DIV
TIME (50Ps/DIV)
Figure 13.
ILOAD
3A/DIV
TIME (50Ps/DIV)
Figure 14.
6
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