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ISL70001ASEH Datasheet, PDF (10/25 Pages) Intersil Corporation – Rad Hard and SEE Hard 6A Synchronous Buck Regulator
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ISL70001ASEH
Typical Operating Performance
Unless otherwise noted, TA = +25°C, VIN = 5V, EN = 5V, L = 1.0µH, CIN = 4x47µF, COUT = 10x100µF, VOUT = 1.8V, IOUT = 0A to 6A.
100
100
95
95
90
85
1.5V
80
1.2V
75
1.8V
2.5V
70 0
1
2
3
4
5
6
ILOAD (A)
FIGURE 5. EFFICIENCY vs LOAD, VIN = 3.3V
90
85
1.5V
1.8V
80
1.2V
2.5V
3.3V
75
70
0
1
2
3
4
5
6
ILOAD (A)
FIGURE 6. EFFICIENCY vs LOAD, VIN = 5.0V
2.0
1.8
1.6
1.4
2.5V
1.2
1.8V
1.2V
1.0
1.5V
0.8
0.6
0.4
0.2
00
1
2
3
4
5
6
ILOAD (A)
FIGURE 7. POWER DISSIPATION vs LOAD, VIN = 3.3V
2.0
1.8
1.6
2.5V
1.4
1.8V
1.2
1.0
3.3V
1.2V
1.5V
0.8
0.6
0.4
0.2
0
0
1
2
3
4
5
6
ILOAD (A)
FIGURE 8. POWER DISSIPATION vs LOAD, VIN = 5.0V
0.005
0.004
0.003
0.002
0.001
1.5V
1.2V
0
-0.001
-0.002
-0.003
-0.004
1.8V
2.5V
-0.005
0
1
2
3
4
5
6
ILOAD (A)
FIGURE 9. VOUT REGULATION vs ILOAD, VIN = 3.3V (NORMALIZED
to ILOAD = 0)
0.010
0.005
0
1.2V
1.5V
-0.005
1.8V
3.3V
2.5V
-0.010
0
1
2
3
4
5
6
ILOAD (A)
FIGURE 10. VOUT REGULATION vs ILOAD, VIN = 5.0V (NORMALIZED
to ILOAD = 0)
10
FN8365.0
May 22, 2013
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