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ISL70003ASEH Datasheet, PDF (15/36 Pages) Intersil Corporation – Radiation and SEE Tolerant 3V to 13.2V, 9A Buck Regulator
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ISL70003ASEH
Typical Performance Curves Unless otherwise noted, Test platform is the ISL70003ASEHEV1Z where VIN = 12V,
VOUT = 3.3V, IOUT = 3A, fSW = 500kHz, CIN = 4x 100µF + 5x1µF, LOUT = 3.3µH, COUT = 1x 150µF + 1µF, TCASE = +25°C, All outputs active.
100
5VOUT
90
1.8VOUT
3.3VOUT
2.5VOUT
100
5VOUT
90
3.3VOUT
80
80
70
1.5VOUT
60
1.2VOUT
0.9VOUT
50 0
1
2
3
4
5
6
7
8
9
LOAD CURRENT (A)
FIGURE 6. EFFICIENCY vs LOAD, VIN = 12V, 300kHz
70
60
1.5VOUT
1.2VOUT
0.9VOUT
1.8VOUT
2.5VOUT
500
1
2
3
4
5
6
7
8
9
LOAD CURRENT (A)
FIGURE 7. EFFICIENCY vs LOAD, VIN = 12V, 500kHz
100
95 5VOUT
90
85
80
75
70
1.5VOUT 1.8VOUT
65
1.2VOUT
2.5VOUT
60
0.9VOUT
3.3VOUT
55
50 0
1
2
3
4
5
6
7
8
9
LOAD CURRENT (A)
FIGURE 8. EFFICIENCY vs LOAD, VIN = 8V, 300kHz
100
95
90
85
80
75
70
65
60
55
50 0
5VOUT
1.5VOUT
1.2VOUT
1.8VOUT
0.9VOUT
3.3VOUT
2.5VOUT
1
2
3
4
5
6
7
8
9
LOAD CURRENT (A)
FIGURE 9. EFFICIENCY vs LOAD, VIN = 8V, 500kHz
100
95
90
85
80
75
70
65
60
55
50
0
1.2VOUT 1.5VOUT
0.9VOUT
1.8VOUT
2.5VOUT
3.3VOUT
1
2
3
4
5
6
7
8
9
LOAD CURRENT (A)
FIGURE 10. EFFICIENCY vs LOAD, VIN = 5V, 300kHz
100
95
90
85
80
75
70
65
60
55
50 0
1.2VOUT
0.9VOUT
1.5VOUT
1.8VOUT
2.5VOUT
3.3VOUT
1
2
3
4
5
6
7
8
9
LOAD CURRENT (A)
FIGURE 11. EFFICIENCY vs LOAD, VIN = 5V, 500kHz
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August 5, 2015
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