Intersil ISL68200 Series, Руководство пользователя

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UG067 Rev.2.00 Page 11 of 22
Aug 23, 2017
ISL68200DEMO1Z
Measured Data
The following data was acquired using a ISL68200DEMO1Z board.
FIGURE 8. TYPICAL DIGITAL OUTPUT CURRENT MEASUREMENT
FIGURE 9. EFFICIENCY, V
IN
= 12V, f
SW
= 400kHz FIGURE 10. EFFICIENCY, V
IN
= 5V, f
SW
= 400kHz
FIGURE 11. EFFICIENCY, V
IN
= 12V, f
SW
= 500kHz
FIGURE 12. EFFICIENCY, V
IN
= 5V, f
SW
= 500kHz
-0.05
0.00
0.05
0.10
0.15
0.20
0.25
0
4
8
12
16
20
24
0 2 4 6 8 10 12 14 16 18 20 22
LOAD CURRENT (A)
SLOPE = 1
EFFICIE
N
CY
(%)
ERROR (DIGIT
AL
I
OU
T
-LOAD) (A)
80
81
82
83
84
85
86
87
88
89
90
91
92
0 2 4 6 8 10 12 14 16 18 20 22 24
LOAD CURRENT (A)
VOUT=0.8V
VOUT=1V
VOUT=1.2V
VOUT=1.5V
VOUT=1.8V
EFFICIENCY (%
)
83
84
85
86
87
88
89
90
91
92
93
94
95
0 2 4 6 8 10 12 14 16 18 20 22 24
LOAD CURRENT (A)
VOUT=0.8V
VOUT=1V
VOUT=1.2V
VOUT=1.5V
VOUT=1.8V
EFFIC
IENCY
(%)
80
81
82
83
84
85
86
87
88
89
90
91
92
0 2 4 6 8 10 12 14 16 18 20 22 24
LOAD CURRENT (A)
VOUT=0.8V
VOUT=1V
VOUT=1.2V
VOUT=1.5V
VOUT=1.8V
EFFICIE
N
CY
(
%
)
83
84
85
86
87
88
89
90
91
92
93
94
95
0 2 4 6 8 10 12 14 16 18 20 22 24
LOAD CURRENT (A)
VOUT=0.8V
VOUT=1V
VOUT=1.2V
VOUT=1.5V
VOUT=1.8V
EFFIC
IENCY (%)