ISL65426_07 Datasheet, PDF (11/22 Pages) Intersil Corporation – 6A Dual Synchronous Buck Regulator with Integrated MOSFETs

ISL65426
Typical Performance Curves
1.845
Circuit of Figure 2. V_IN = 5V, I_OUT1 = 4A, I_OUT2 = 2A, T_A = -10°C to +100°C unless otherwise
noted. Typical values are at T_A = +25°C. (Continued)
1.845
1.825
1.805
3.3V_IN
2.5V_IN
1.825
1.805
NO LOAD
1.785
1.765
5.5V_IN
1.745
0.1
0.5
1.0
1.5
2.0
OUTPUT LOAD (A)
FIGURE 16. V_OUT2 = 1.8V REGULATION vs LOAD
1.785
1.765
2A LOAD
1A LOAD
1.745
2.0 2.5
3.0 3.5
4.0
4.5 5.0 5.5
INPUT VOLTAGE (V)
FIGURE 17. V_OUT2 = 1.8V REGULATION vs VIN
2.565
2.545
2.525
2.505
3.3V_IN
4V_IN
2.485
2.465
2.445
5.5V_IN
2.425
0.1
0.5
1.0
1.5
2.0
OUTPUT LOAD (A)
FIGURE 18. V_OUT2 = 2.5V REGULATION vs LOAD
3.400
3.380
3.360
3.340
3.320
5.5V_IN
4.5V_IN
3.300
3.280
3.260
3.240
3.220
5V_IN
3.200
0.1
0.5
1.0
1.5
2.0
OUTPUT LOAD (A)
FIGURE 20. V_OUT2 = 3.3V REGULATION vs LOAD
2.565
2.545
2.525
NO LOAD
2.505
2.485
2.465
2.445
2A LOAD ^{1A LOAD}
2.425
2.0 2.5
3.0 3.5
4.0
4.5
5.0 5.5
INPUT VOLTAGE (V)
FIGURE 19. V_OUT2 = 2.5V REGULATION vs VIN
3.400
3.380
3.360
3.340
NO LOAD
3.320
3.300
3.280
3.260
3.240
3.220
2A LOAD
1A LOAD
3.200
4.0 4.25
4.5
4.75
5.0
5.25
5.5
INPUT VOLTAGE (V)
FIGURE 21. V_OUT2 = 3.3V REGULATION vs VIN
11
FN6340.2
February 21, 2007