ISL8002(2013_01) 데이터 시트보기 (PDF) - Intersil
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ISL8002 Datasheet PDF : 22 Pages
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ISL8002, ISL8002A, ISL80019, ISL80019A
Typical Performance Curves (Continued)
100
100
90
90
80
80
70
3.3VOUT
2.5VOUT
60
1.8VOUT
1.5VOUT
50
1.2VOUT
0.9VOUT
0.8VOUT
40
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
OUTPUT LOAD (A)
FIGURE 10. EFFICIENCY vs LOAD
FSW = 1MHz, VIN = 5V, MODE = PFM, TA = +25°C
70
3.3VOUT
2.5VOUT
60
1.8VOUT
1.5VOUT
50
1.2VOUT
0.9VOUT
0.8VOUT
40
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
OUTPUT LOAD (A)
FIGURE 11. EFFICIENCY vs LOAD
FSW = 1MHz, VIN = 5V, MODE = PWM, TA = +25°C
0.925
0.920
0.915
5VIN PFM
5VIN PWM
3.3VIN PWM
3.3VIN PFM
0.910
0.905
0.900
0.895
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
OUTPUT LOAD (A)
FIGURE 12. VOUT REGULATION vs LOAD,
FSW = 2MHz, VOUT = 0.9V, TA = +25°C
1.230
1.225
1.220
5VIN PFM
5VIN PWM
3.3VIN PWM
3.3VIN PFM
1.215
1.210
1.205
1.200
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
OUTPUT LOAD (A)
FIGURE 13. VOUT REGULATION vs LOAD,
FSW = 2MHz, VOUT = 1.2V, TA = +25°C
1.520
1.515
1.510
5VIN PFM
5VIN PWM
3.3VIN PWM
3.3VIN PFM
1.505
1.500
1.495
1.490
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
OUTPUT LOAD (A)
FIGURE 14. VOUT REGULATION vs LOAD,
FSW = 2MHz, VOUT = 1.5V, TA = +25°C
1.810
1.805
1.800
5VIN PFM
5VIN PWM
3.3VIN PWM
3.3VIN PFM
1.795
1.790
1.785
1.780
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
OUTPUT LOAD (A)
FIGURE 15. VOUT REGULATION vs LOAD,
FSW = 2MHz, VOUT = 1.8V, TA = +25°C
1.8 2.0
10
FN7888.1
January 7, 2013
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