SC402BMLTRT View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
'SC402BMLTRT' PDF : 32 Pages View PDF
SC402B
Typical Characteristics
Characteristics in this section are based on using the Typical Application Circuit on page 8.
Efficiency/Power Loss vs. Load — PSAVE Mode
VDD = 3.3V, VOUT = 1.5V
100
95
VIN = 5V
90
VIN = 12V
85
80
75
70
65
60
VIN = 12V
55
VIN = 5V
50
0
1
2
3
4
5
6
7
IOUT (A)
5.0
Efficiency
4.0
3.0
2.0
PLOSS
1.0
0.0
8
9
10
Efficiency/Power Loss — PSAVE vs. FCM
VDD = 3.3V, VOUT = 1.5V, VIN = 12V
100
95
PSAVE
90
FCM
85
0.3000
0.2675
0.2350
0.2025
80
0.1700
75
0.1375
70
0.1050
65
0.0725
60
FCM minus PSM
55
0.0400
0.0075
50
-0.0250
0
1
2
3
4
5
6
7
8
9
10
IOUT (A)
Efficiency/Power Loss vs. Load — PSAVE Mode
VDD = 5V, VOUT = 1.5V
100
VIN = 12V
95
VIN = 5V
90
85
VIN = 18V
5.0
Efficiency
4.0
80
3.0
75
70
VIN = 12V
2.0
65
60
VIN = 18V
1.0
55
VIN = 5V
PLOSS
50
0.0
0
1
2
3
4
5
6
7
8
9
10
IOUT (A)
Efficiency/Power Loss — PSAVE vs. FCM
VDD = 5V, VOUT = 1.5V, VIN = 12V
100
95
PSAVE
90
85
FCM
0.3000
0.2675
0.2350
0.2025
80
0.1700
75
0.1375
70
0.1050
65
0.0725
60
FCM minus PSM
55
0.0400
0.0075
50
-0.0250
0
1
2
3
4
5
6
7
8
9
10
IOUT (A)
Efficiency/Power Loss vs. Load — FCM
VDD = 5V, VOUT = 1.5V
100
VIN = 12V
95
VIN = 5V
5.0
Efficiency
90
4.0
85
VIN = 18V
80
3.0
75
70
VIN = 12V
2.0
65
60
VIN = 18V
1.0
PLOSS
55
VIN = 5V
50
0.0
0
1
2
3
4
5
6
7
8
9
10
IOUT (A)
Efficiency/Power Loss — PSAVE
VOUT = 1.5V, VIN = 12V
100
95
3.3V Bias
90
5V Bias
85
80
75
70
65
3.3V minus 5V
60
55
50
0
1
2
3
4
5
6
7
8
9
IOUT (A)
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
-0.05
-0.10
-0.15
10
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