ISL8025, ISL8025A
Typical Operating Performance Unless otherwise noted, operating conditions are: TA = +25°C, VVIN = 5V,
EN = VIN, SYNC = VIN, L = 1.0µH, C1 = 22µF, C2 = 2 x 22µF, IOUT = 0A to 5A. (Continued)
1.815
1.810
1.805
1.800
5VIN PFM
5VIN PWM
3.3VIN PWM
3.3VIN PFM
2.505
2.500
2.495
2.490
5VIN PFM
5VIN PWM
3.3VIN PWM
3.3VIN PFM
1.795
2.485
1.790
2.480
1.785
2.475
1.780
2.470
1.775
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
OUTPUT LOAD (A)
FIGURE 16. VOUT REGULATION vs LOAD (1MHz, VOUT = 1.8V)
2.465
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
OUTPUT LOAD (A)
FIGURE 17. VOUT REGULATION vs LOAD (1MHz, VOUT = 2.5V)
3.309
3.301
3.293
5VIN PFM
5VIN PWM
3.285
3.277
3.269
3.261
3.253
3.245
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
OUTPUT LOAD (A)
FIGURE 18. VOUT REGULATION vs LOAD (1MHz, VOUT = 3.3V)
10
FN8357.0
February 20, 2013