ISL70003ASEH Datasheet, PDF (16/36 Pages) Intersil Corporation – Radiation and SEE Tolerant 3V to 13.2V, 9A Buck Regulator

ISL70003ASEH
Typical Performance Curves Unless otherwise noted, Test platform is the ISL70003ASEHEV1Z where V_IN = 12V,
V_OUT = 3.3V, I_OUT = 3A, f_SW = 500kHz, C_IN = 4x 100µF + 5x1µF, L_OUT = 3.3µH, C_OUT = 1x 150µF + 1µF, T_CASE = +25°C, All outputs active. (Continued)
100
100
95
95
90
90
85
85
80
80
75 0.9V_OUT
70
65
1.2V_OUT
1.5V_OUT
1.8V_OUT
60
2.5V_OUT
75
0.9V_OUT
70
65
1.2V_{OUT 1.5VOUT}
60
2.5V_{OUT 1.8VOUT}
55
55
50 ₀
1
2
3
4
5
6
7
8
9
500
1
2
3
4
5
6
7
8
9
LOAD CURRENT (A)
LOAD CURRENT (A)
FIGURE 12. EFFICIENCY vs LOAD, V_IN = 3.3V, 300kHz
FIGURE 13. EFFICIENCY vs LOAD, V_IN = 3.3V, 500kHz
100
95
90
85
T_C = -55°C
80
75
T_C = +125°C
T_C = +85°C
T_C = +25°C
70
65
60 ₀
1
2
3
4
5
6
7
8
9
LOAD CURRENT (A)
FIGURE 14. EFFICIENCY vs LOAD, V_IN = 12V, V_OUT = 5V, 300kHz
100
95
90
85
80
75
T_C = +85°C
T_C = -55°C
70
T_C = +125°C
T_C = +25°C
65
60 ₀
1
2
3
4
5
6
7
8
9
LOAD CURRENT (A)
FIGURE 15. EFFICIENCY vs LOAD, V_IN = 12V, V_OUT = 3.3V, 500kHz
100
95
90
85
80
75
70
65
60 ₀
T_C = -55°C
T_C = +85°C
T_C = +25°C
T_C = +125°C
1
2
3
4
5
6
7
8
9
LOAD CURRENT (A)
FIGURE 16. EFFICIENCY vs LOAD, V_IN = 5V, V_OUT = 3.3V, 500kHz
100
95
90
85
80
75 ^{TC = +125°C}
70
65
60
0
1
2
T_C = +25°C
T_C = -55°C
T_C = +85°C
3
4
5
6
7
8
9
LOAD CURRENT (A)
FIGURE 17. EFFICIENCY vs LOAD, V_IN = 5V, V_OUT = 2.5V, 500kHz
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August 5, 2015