ZL9101M
Typical Performance Curves Operating conditions: T A = +25°C, no air flow, F SW = 571kHz. V DRV = 5V.
C OUT = 3000μF. Typical values are used unless otherwise noted.
100
100
95
V OUT = 3.3V
V OUT = 2.5V
V OUT = 1.8V
95
V OUT = 2.5V
V OUT = 1.8V
V OUT = 3.3V
90
85
90
85
80
75
70
V OUT = 1.2V
V OUT = 1.0V
V IN = 5V
f SW = 571kHz
80
75
70
V OUT = 1.2V
V OUT = 1.0V
V IN = 9V
f SW = 571kHz
0
1
2
3
4
5
6
7
8
9
10
11
12
0
1
2
3
4
5
6
7
8
9
10
11
12
OUTPUT CURRENT (A)
FIGURE 2. EFFICIENCY, V IN = 5V, FOR VARIOUS OUTPUT
VOLTAGES LISTED
100
OUTPUT CURRENT (A)
FIGURE 3. EFFICIENCY, V IN = 9V, FOR VARIOUS OUTPUT
VOLTAGES LISTED
35
95
90
V OUT = 3.3V
V OUT = 2.5V
V OUT = 1.8V
30
25
20
V IN = 12V
V OUT = 1.2V
I OUT STEP = 12A to 6A
SLEW 2.5A/μs
85
15
80
75
70
V OUT = 1.2V
V OUT = 1.0V
V IN = 12V
f SW = 571kHz
10
5
0
0
1
2
3
4 5 6 7 8
OUTPUT CURRENT (A)
9
10
11
12
-5
0
0.1
0.2
0.3
0.4
0.5 0.6
0.7
0.8
0.9
1
TIME (ms)
FIGURE 4. EFFICIENCY, V IN = 12V, FOR VARIOUS OUTPUT
VOLTAGES LISTED
FIGURE 5. DYNAMIC RESPONSE, UNLOADING
5
0
0.1
0.2
0.3
TIME (ms)
0.4 0.5 0.6
0.7
0.8
0.9
1.0
1.4
1.2
V IN = 12V
0
-5
-10
-15
1.0
0.8
0.6
0.4
V OUT = 1.2V
t RISE = 5ms
V IN = 12V
-20 V OUT = 1.2V
-25 I OUT STEP = 6A to 12A
SLEW 2.5A/μs
-30
0.2
0
-0.2
0
1
2
3
4
5 6
TIME (ms)
7
8
9
10
FIGURE 6. DYNAMIC RESPONSE, LOADING
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
FIGURE 7. SOFT-START RAMP-UP
V IN = 12V
V OUT = 1.2V
t FALL = 5ms
-0.2
0
1
2
3
4
5 6
7
8
9
10
TIME (ms)
FIGURE 8. RAMP-DOWN
7
FN7669.4
January 20, 2012
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