ISL21090
Typical Performance Curves (ISL21090-2.5) (Continued)
12
6
8
+25°C
4
4
2
C L = NO LOAD
0
-4
-40°C
0
-8
+125°C
-2
C L = 100nF
C L = 1μF
-12
-4
-16
-25
-20
-15
-10
-5
0
5
10
15
20
-6
0
20
40
60
80
100
120
(SOURCING)
I LOAD (mA)
(SINKING)
TIME (μs)
FIGURE 24. LOAD REGULATION, THREE TEMPERATURES
6
5
6
5
FIGURE 25. LOAD TRANSIENT ( Δ I LOAD = ±1mA)
4
3
2
1
0
V IN
C L = 0.1μF
4
3
2
1
0
V IN
C L = 1μF
-1
0
50
100
150
200
250
300
350
400
-1
0
50
100
150
200
250
300
350
400
1000
TIME (μs)
FIGURE 26. TURN-ON TIME WITH 0.1μF
0
TIME (μs)
FIGURE 27. TURN-ON TIME WITH 1μF
100
10
C L = NO LOAD
C L = 10nF
C L = 100nF
-20
-40
-60
C L = 10nF
C L = 100nF
C L = 1nF
1
0.1
C L = 1nF
-80
-100
-120
0.01
10
100
1k
10k 100k
1M
10M
-140
10
100
C L = NO LOAD
1k 10k
100k
1M
10M
FREQUENCY (Hz)
FIGURE 28. Z OUT vs FREQUENCY
10
FREQUENCY (Hz)
FIGURE 29. PSRR AT DIFFERENT CAPACITIVE LOADS
FN6993.5
February 27, 2013
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