LP3855-ADJ_15 Datasheet, PDF (6/22 Pages) Texas Instruments – 1.5A Fast Response Ultra Low Dropout Linear Regulators

LP3855-ADJ
SNVS244F – SEPTEMBER 2003 – REVISED APRIL 2013
www.ti.com
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
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 =
10 mA.
3.000
Noise
vs
Frequency
Load Transient Response
(C_IN = C_OUT = 10µF,OSCON)
2.500
2.000
IL = 100mA
CIN = COUT = 10PF
VOUT
100mV/DIV
1.500
1.000
0.500
ILOAD
1A/DIV
0.000
100
1k
10k
100k
FREQUENCY (Hz)
Figure 10.
TIME (50Ps/DIV)
Figure 11.
Load Transient Response
(C_IN = C_OUT = 100µF,OSCON)
Load Transient Response
(C_IN = C_OUT = 100µF,POSCAP)
VOUT
100mV/DIV
VOUT
100mV/DIV
ILOAD
1A/DIV
TIME (50Ps/DIV)
Figure 12.
Load Transient Response
(C_IN = C_OUT = 10µF,TANTALUM)
VOUT
100mV/DIV
ILOAD
1A/DIV
TIME (50Ps/DIV)
Figure 13.
Load Transient Response
(C_IN = C_OUT = 100µF,TANTALUM)
VOUT
100mV/DIV
ILOAD
1A/DIV
TIME (50Ps/DIV)
Figure 14.
ILOAD
1A/DIV
TIME (50Ps/DIV)
Figure 15.
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