LP3881 Datasheet, PDF (6/18 Pages) National Semiconductor (TI) – 0.8A Fast-Response Ultra Low Dropout Linear Regulators

LP3881
SNVS224F – MARCH 2003 – REVISED APRIL 2013
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TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Unless otherwise specified: T_A = 25°C, C_OUT = 4.7µF, Cin = 4.7µF, S/D pin is tied to V_BIAS, V_IN = 2.2V, V_OUT = 1.8V
I_BIAS
vs
I_GND
vs
I_L
VSD
1.20
125^oC
1.10
VBIAS = 5V
_ VIN = 2.3V
1.00
25^oC
0.90
_
0.80
0
-40^oC
0.2 _ 0.4 _ 0.6 _ 0.8
ILOAD (A)
Figure 10.
Noise Measurement
Figure 11.
V_OUTStartup Waveform
Figure 12.
Line Regulation
vs
V_BIAS
Figure 13.
Line Regulation
vs
V_BIAS
Figure 14.
Figure 15.
6
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