SC1480ITSTRT View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
SC1480ITSTRT Datasheet PDF : 22 Pages
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SC1480
POWER MANAGEMENT
Typical Characteristic (Cont.)
SC1480EVB Efficiency at VOUT = 1.25V
100
95
90
85
80
75
70
VIN=25V
VIN=14V
VIN=4.5V
65
60
0.1 0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
Output Current (Amps)
SC1480EVB Line Regulation at V = 1.25V
OUT
0.6
0.5
0.4
0.3
0.2
0.1
0
4.5
IOUT=0A
IOUT=1A
IOUT=2A
IOUT=3A
IOUT=4A
IOUT=5A
10
14
19
25
Input Voltage (Volts)
SC1480EVB Load Regulation at V = 1.25V
OUT
0.6
0.5
0.4
0.3
0.2
0.1
0
0
VIN=4.5V
VIN=10V
VIN=14V
VIN=19V
VIN=25V
1
2
3
4
5
Load Current (Amps)
Frequency vs. Input Voltage
(IOUT = 1A, VOUT = 1.25V, Rton = 1M)
280
270
260
250
240
230
220
210
200
5
10
15
20
25
Input Voltage (Volts)
Frequency vs. Load Current
(V = 15V, V = 1.25V, Rton = 1M)
IN
OUT
290
280
270
260
250
240
230
220
210
200
0
1
2
3
4
5
6
Load Current (Amps)
2006 Semtech Corp.
Rton vs. Frequency
(VIN = 15V, VOUT = 1.25V, IOUT = 1A)
600
500
400
300
200
100
0
400
500
600
700
800
1000
1500
Rton (kohms)
19
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