ISL8016 Ver la hoja de datos (PDF) - Intersil
Número de pieza
componentes Descripción
Fabricante
ISL8016 Datasheet PDF : 22 Pages
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ISL8016
Typical Operating Performance Unless otherwise noted, operating conditions are: TA = +25°C, VIN = 5V,
EN = 3.3V, SYNCIN = VIN, L = 1.0µH, C1 = 2x22µF, C2 = 4x22µF, VOUT = 1.8V, IOUT = 0A to 6A.
100
100
2.5VOUT
95
95
90
2.5VOUT
1.8VOUT
85
1.5VOUT
90
1.5VOUT 1.2VOUT
85
1.8VOUT
80
1.2VOUT
80
75
75
70
0.0
1.0
2.0
3.0
4.0
5.0
6.0
IOUT (A)
FIGURE 5. EFFICIENCY vs LOAD (1MHz 3.3VIN PWM)
70
0.0
0.3
0.6
0.9
1.2
1.5
1.8
IOUT (A)
FIGURE 6. EFFICIENCY vs LOAD (1MHz 3.3VIN PFM)
100
3.3VOUT
95
90
2.5VOUT
1.8VOUT
85
1.5VOUT
1.2VOUT
80
75
70
0.0
1.0
2.0
3.0
4.0
5.0
6.0
IOUT (A)
FIGURE 7. EFFICIENCY vs LOAD (1MHz 5VIN PWM)
100
3.3VOUT
95
90
85
2.5VOUT 1.8VOUT
80
1.5VOUT
1.2VOUT
75
70
0.0
0.3
0.6
0.9
1.2
1.5
1.8
IOUT (A)
FIGURE 8. EFFICIENCY vs LOAD (1MHz 5VIN PFM)
1.8
1.5
5VIN PWM MODE
1.2
3.3VIN PWM MODE
0.9
0.6
0.3
0
0.0
1.0
2.0
3.0
4.0
5.0
6.0
IOUT (A)
FIGURE 9. POWER DISSIPATION vs LOAD (1MHz, VOUT = 1.8V)
1.84
1.83
1.82
3A LOAD
0A LOAD
1.81
1.80
1.79
6A LOAD
1.78
2.5
3.0
3.5
4.0
4.5
5.0
5.5
VIN (V)
FIGURE 10. VOUT REGULATION vs VIN (PWM VOUT = 1.8V)
10
FN7616.1
May 5, 2011
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