AN1732 Rev.1.00
Page 4 of 13
December 6, 2016
ISL70002SEHEVAL1Z
FIGURE 8. EFFICIENCY vs LOAD vs OUTPUT VOLTAGE
V
IN
= 5V, f
SW
= 500kHz, +25°C CASE TEMPERATURE
FIGURE 9. EFFICIENCY vs LOAD vs OUTPUT VOLTAGE
V
IN
= 5V, f
SW
= 1MHz, +25°C CASE TEMPERATURE
FIGURE 10. EFFICIENCY vs LOAD vs OUTPUT VOLTAGE
V
IN
= 3.3V, f
SW
= 500kHz, +85°C CASE TEMPERATURE
FIGURE 11. EFFICIENCY vs LOAD vs OUTPUT VOLTAGE
V
IN
= 3.3V, f
SW
= 1MHz, +85°C CASE TEMPERATURE
FIGURE 12. EFFICIENCY vs LOAD vs OUTPUT VOLTAGE
V
IN
= 5V, f
SW
= 500kHz, +85°C CASE TEMPERATURE
FIGURE 13. EFFICIENCY vs LOAD vs OUTPUT VOLTAGE
V
IN
= 5V, f
SW
= 1MHz, +85°C CASE TEMPERATURE
ISL70002SEHEVAL1Z Efficiency Curves
The efficiency data presented in
Figures 2
through
17
was taken
with the ISL70002SEHEVAL1Z immersed in a temperature-calibrated liquid bath to ensure the notated IC case temperature. (Continued)
50
55
60
65
70
75
80
85
90
95
100
0
1
2
3
4
5
6
7
8
9
10
11
12
EFFICIENCY (%)
LOAD CURRENT (A)
1.8V
OUT
3.3V
OUT
2.5V
OUT
1.5V
OUT
1.2V
OUT
1.0V
OUT
60
65
70
75
80
85
90
95
100
0
1
2
3
4
5
6
7
8
9
10
11
12
EFFICIE
N
CY
(%)
LOAD CURRENT (A)
1.8V
OUT
1.5V
OUT
1.0V
OUT
1.2V
OUT
2.5V
OUT
3.3V
OUT
50
55
60
65
70
75
80
85
90
95
100
0
1
2
3
4
5
6
7
8
9
10
11
12
EFFIC
IENCY (%)
LOAD CURRENT (A)
1.8V
OUT
1.5V
OUT
1.0V
OUT
1.2V
OUT
2.5V
OUT
50
55
60
65
70
75
80
85
90
95
100
0
1
2
3
4
5
6
7
8
9
10
11
12
E
F
FICIE
NCY (
%
)
LOAD CURRENT (A)
1.2V
OUT
1.8V
OUT
1.5V
OUT
1.0V
OUT
2.5V
OUT
50
55
60
65
70
75
80
85
90
95
100
0
1
2
3
4
5
6
7
8
9
10
11
12
EFFICIE
N
CY
(
%
)
LOAD CURRENT (A)
2.5V
OUT
3.3V
OUT
1.8V
OUT
1.5V
OUT
1.2V
OUT
1.0V
OUT
50
55
60
65
70
75
80
85
90
95
100
0
1
2
3
4
5
6
7
8
9
10
11
12
EFFICIENCY (%
)
LOAD CURRENT (A)
2.5V
OUT
1.8V
OUT
1.5V
OUT
1.2V
OUT
1.0V
OUT
3.3V
OUT
