SC402B
9
Typical Characteristics
Efficiency/Power Loss vs. Load PSAVE Mode
50
55
60
65
70
75
80
85
90
95
100
0 1 2 3 4 5 6 7 8 9 10
I
OUT
(A)
0.0
1.0
2.0
3.0
4.0
5.0
P
LOSS
Efficiency
V
IN
= 12V
V
IN
= 12V
V
IN
= 5V
V
IN
= 5V
Characteristics in this section are based on using the Typical Application Circuit on page 8.
50
55
60
65
70
75
80
85
90
95
100
0 1 2 3 4 5 6 7 8 9 10
IOUT (A)
-0.0250
0.0075
0.0400
0.0725
0.1050
0.1375
0.1700
0.2025
0.2350
0.2675
0.3000
PSAVE
FCM
FCM minus PSM
50
55
60
65
70
75
80
85
90
95
100
0 1 2 3 4 5 6 7 8 9 10
IOUT (A)
-0.0250
0.0075
0.0400
0.0725
0.1050
0.1375
0.1700
0.2025
0.2350
0.2675
0.3000
PSAVE
FCM
FCM minus PSM
50
55
60
65
70
75
80
85
90
95
100
0
1 2 3 4 5 6 7 8 9 10
I A
0.0
1.0
2.0
3.0
4.0
5.0
P
LOSS
Efficiency
VIN= 18V
VIN= 12V
V
IN
= 18V
V
IN
= 12V
V
IN
= 5V
VIN= 5V
50
55
60
65
70
75
80
85
90
95
100
0 1 2 3 4 5 6 7 8 9 10
I
OUT
(A)
0.0
1.0
2.0
3.0
4.0
5.0
P
LOSS
Efficiency
V
IN
= 18V
V
IN
= 12V
VIN= 18V
V
IN
= 12V
V
IN
= 5V
V
IN
= 5V
50
55
60
65
70
75
80
85
90
95
100
0
1 2 3 4 5 6 7 8 9 10
I
OUT
(A)
-0.15
-0.10
-0.05
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
3.3V Bias
3.3V minus 5V
5V Bias
Efficiency/Power Loss vs. Load PSAVE Mode
Efficiency/Power Loss vs. Load FCM
Efficiency/Power Loss PSAVE vs. FCM
Efficiency/Power Loss PSAVE vs. FCM
Efficiency/Power Loss PSAVE
VDD = 3.3V, V
OUT
= 1.5V
VDD = 5V, V
OUT
= 1.5V
VDD = 5V, V
OUT
= 1.5V
VDD = 3.3V, V
OUT
= 1.5V, V
IN
= 12V
VDD = 5V, V
OUT
= 1.5V, V
IN
= 12V
V
OUT
= 1.5V, V
IN
= 12V
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