MAX8865T/S/R, MAX8866T/S/R
Dual, Low-Dropout, 100mA Linear Regulators
_______________________________________________________________________________________
5
10
0.01
0.1 10 1001 1000
OUTPUT SPECTRAL NOISE DENSITY
vs. FREQUENCY
0.1
MAX8865/66-10
FREQUENCY (kHz)
OUTPUT SPECTRAL NOISE DENSITY (µV/Hz)
1
R
L
= 55Ω
C
OUT
= 1µF
C
OUT
= 100µF
1000
0.01
0506070809010 20 30 40 100
REGION OF STABLE C
OUT
ESR
vs. LOAD CURRENT
0.1
MAX8865/66-11
LOAD CURRENT (mA)
C
OUT
ESR (Ω)
1
10
100
INTERNAL FEEDBACK
STABLE REGION
C
OUT
= 1µF
EXTERNAL FEEDBACK
I
LOAD
= 50mA, V
OUT
IS AC COUPLED
LINE-TRANSIENT RESPONSE
4.6V
3.6V
2.84V
2.82V
2.83V
50µs/div
V
IN
V
OUT
I
LOAD
= 50mA, V
OUT
IS AC COUPLED
OUTPUT NOISE DC TO 1MHz
V
OUT
1ms/div
V
IN
= 3.60V, I
LOAD
= 0mA to 50mA, C
IN
= 10µF, V
OUT
IS AC COUPLED
LOAD-TRANSIENT RESPONSE
I
LOAD
10µs/div
V
OUT
50mA
0mA
2.85V
2.84V
2.83V
____________________________Typical Operating Characteristics (continued)
(V
IN
= +3.6V, C
IN
= 2µF, C
OUT
= 1µF, SHDN2 = GND, MAX886_S, T
A
= +25°C, unless otherwise noted.)
