R34UZ0004EU0100 Rev.1.00
Page 8
Oct 15, 2021
ISLKU060DEMO1Z Reference Manual
Figure 8. ISL70321SEH Power Sequencing Enable
Figure 9. Efficiency vs Load, V
IN
= 5.0V
Figure 10. ISL70002SEH Efficiency, V
IN
= 5V, 500kHz
Figure 11. ISL70005SEH Buck Efficiency, V
IN
= 5V, 1MHz
Figure 12. ISL70005SEH LDO Load Regulation
70
75
80
85
90
95
100
I
LOAD
(A)
EFF
IC
IEN
CY (%
)
0
1
2
3
4
5
6
1.5V
1.2V
1.8V
2.5V
3.3V
50
55
60
65
70
75
80
85
90
95
100
0
2
4
6
8
10
12
14
16
18
20
22
E
fficienc
y
(%)
Load Current (A)
0.95VOUT
1.2VOUT
1.5VOUT
1.8VOUT
2.5VOUT
3.3VOUT
50
55
60
65
70
75
80
85
90
95
0.0
0.5
1.0
1.5
2.0
2.5
3.0
E
ffi
ci
enc
y
(%)
Load Current (A)
Vout = 3.3V
Vout = 2.5V
Vout = 1.8V
Vout = 1.5V
0.740
0.745
0.750
0.755
0.760
0.765
-1.5
-1.0
-0.5
0.0
0.5
1.0
1.5
LDO V
o
ltage
(V
)
LDO Current (A)
L_VCC = B_VCC = 5V
L_VIN = 1.5V
L_EA+ = 0.75V
