SC402BMLTRT View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
'SC402BMLTRT' PDF : 32 Pages View PDF
SC402B
Typical Characteristics (continued)
Characteristics in this section are based on using the Typical Application Circuit on page 8.
Load Regulation vs. Temperature — FCM
VDD = 5V, VOUT = 1.5V
1.525
VIN = 18V TA = 25°C
1.520
1.515
VIN = 12V TA = 25°C
VIN = 12V TA = 85°C
VIN = 18V TA = 85°C
1.510
1.505
1.500
VIN = 5V TA = 85°C
VIN = 5V TA = 25°C
VIN = 18V TA = -40°C
VIN = 12V TA = -40°C
VIN = 5V TA = -40°C
1.495 0
1
2
3
4
5
6
7
8
9
10
IOUT (A)
Load Regulation vs. Temperature — FCM
VDD = 3.3V, VOUT = 1.5V
1.525
1.520
1.515
1.510
1.505
1.500
1.495 0
VIN = 12V TA = 85°C
VIN = 12V TA = 25°C
VIN = 5V TA = 85°C
VIN = 5V TA = 25°C
VIN = 12V TA = -40°C
VIN = 5V TA = -40°C
1
2
3
4
5
6
7
8
9
10
IOUT (A)
Load Regulation vs. Temperature — PSAVE
VDD = 5V, VOUT = 1.5V
1.525
VIN = 18V TA = 25°C
1.520 VIN = 12V TA = 25°C
1.515
VIN = 12V TA = 85°C
VIN = 18V TA = 85°C
1.510
1.505
1.500
VIN = 5V TA = 85°C
VIN = 18V TA = -40°C VIN = 12V TA = -40°C
VIN = 5V TA = 25°C
VIN = 5V TA = -40°C
1.495
0
1
2
3
4
5
6
7
8
9
10
IOUT (A)
Load Regulation vs. Temperature — PSAVE
VDD = 5V, VOUT = 1.5V
1.525
1.520
1.515
1.510
1.505
1.500
1.495
0
VIN = 12V TA = 85°C
VIN = 5V TA = 85°C
VIN = 12V TA = 25°C
VIN = 5V TA = 25°C
VIN = 12V TA = -40°C
VIN = 5V TA = -40°C
1
2
3
4
5
6
7
8
9
10
IOUT (A)
Efficiency Variation with VOUT— PSAVE
VDD = 5V, VIN = 12V, L = 2.2uH (4.6m Ω) for VOUT = 2.5V, 3.3V and 5V
100
VOUT = 5V
VOUT = 2.5V
VOUT = 3.3V
95
VOUT = 1.5V
90
VOUT = 1V
85
80
75
0
1
2
3
4
5
6
7
8
9
10
IOUT (A)
Efficiency/Power Loss vs. Load — PSAVE Mode
VDD = 5V, VIN = 12V, VOUT = 1.5V
100
95
90
External
Bias
85
80
LDO
75
Bias
70
65
60
55
50
0.000
0.001
LDO minus External
0.010
0.100
IOUT (A)
1.000
0.350
0.315
0.280
0.245
0.210
0.175
0.140
0.105
0.070
0.035
0.000
10.000
11
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