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Data Sheet ADP2118
Rev. C | Page 7 of 24
TYPICAL PERFORMANCE CHARACTERISTICS
T
A
= 25°C, V
IN
= 5 V, V
OUT
= 1.2 V, L = 1 µH, C
IN
= 100 µF, C
OUT
= 100 µF, unless otherwise noted.
0
10
20
30
40
50
60
70
80
90
100
0
0.5 1.0
1.5
2.0
2.5
3.0
EFFICIENCY (%)
OUTPUT CURRENT (A)
V
OUT
= 1.0V
V
OUT
= 1.2V
V
OUT
= 1.5V
V
OUT
= 1.8V
V
OUT
= 2.5V
INDUCTOR COILCRAFT
MSS1038-102NL
08301-014
Figure 4. Efficiency (1.2 MHz, V
IN
= 3.3 V, FPWM) vs. Output Current
0
10
20
30
40
50
60
70
80
90
100
0
0.5
1.0
1.5
2.0
2.5
3.0
EFFICIENCY (%)
OUTPUT CURRENT (A)
INDUCTOR COILCRAFT
MSS1038-102NL
V
OUT
= 1.0V
V
OUT
= 1.2V
V
OUT
= 1.5V
V
OUT
= 1.8V
V
OUT
= 2.5V
V
OUT
= 3.3V
08301-015
Figure 5. Efficiency (1.2 MHz, V
IN
= 5 V, FPWM) vs. Output Current
0
10
20
30
40
50
60
70
80
90
100
0
0.5 1.0 1.5
2.0
2.5
3.0
EFFICIENCY (%)
OUTPUT CURRENT (A)
V
OUT
= 1.0V
V
OUT
= 1.2V
V
OUT
= 1.5V
V
OUT
= 1.8V
V
OUT
= 2.5V
INDUCTOR SUMIDA
CDRH105R2R2NC
08301-016
Figure 6. Efficiency (600 kHz, V
IN
= 3.3 V, FPWM) vs. Output Current
0
10
20
30
40
50
60
70
80
90
100
0 0.5 1.0 1.5 2.0 2.5 3.0
EFFICIENC
Y (%)
OUTPUT CURRENT (A)
V
OUT
= 1.0V
V
OUT
= 1.2V
V
OUT
= 1.5V
V
OUT
= 1.8V
V
OUT
= 2.5V
INDUCTOR COILCRAFT
MSS1038-102NL
08301-017
Figure 7. Efficiency (1.2 MHz, V
IN
= 3.3 V, PFM) vs. Output Current
0
10
20
30
40
50
60
70
80
90
100
0
0.5 1.0
1.5
2.0
2.5 3.0
EFFICIENCY
(%)
OUTPUT CURRENT (A)
INDUCTOR COILCRAFT
MSS1038-102NL
V
OUT
= 1.0V
V
OUT
= 1.2V
V
OUT
= 1.5V
V
OUT
= 1.8V
V
OUT
= 2.5V
V
OUT
= 3.3V
08301-018
Figure 8. Efficiency (1.2 MHz, V
IN
= 5 V, PFM) vs. Output Current
0
0.5 1.0
1.5
2.0 2.5 3.0
0
10
20
30
40
50
60
70
80
90
100
EFFICIENC
Y (%)
OUTPUT CURRENT (A)
V
OUT
= 1.0V
V
OUT
= 1.2V
V
OUT
= 1.5V
V
OUT
= 1.8V
V
OUT
= 2.5V
INDUCTOR SUMIDA
CDRH105R2R2NC
08301-019
Figure 9. Efficiency (600 kHz, V
IN
= 3.3 V, PFM) vs. Output Current