ISL8023 INTERSIL [Intersil Corporation], ISL8023 Datasheet - Page 8

• Manufacturer Part Number: ISL8023
• Description: 3A/4A Low Quiescent Current High Efficiency Synchronous Buck Regulator
• Manufacturer: INTERSIL [Intersil Corporation]

Typical Operating Performance
EN = V
FIGURE 14. OUTPUT VOLTAGE REGULATION vs V
FIGURE 10. V
FIGURE 12. V
1.529
1.524
1.519
1.514
1.509
1.504
1.499
1.815
1.810
1.805
1.800
1.795
1.790
1.785
2.540
2.532
2.524
2.516
2.508
2.500
2.492
IN
, SYNC = V
0.0
0.0
2.0
5V
5V
IN
(PWM V
IN
0.5
0.5
2.5
PWM MODE
PWM MODE
OUT
OUT
IN
, L = 1.0µH, C
3.3V
REGULATION vs LOAD (1MHz, V
REGULATION vs LOAD (1MHz, V
OUT
3.3V
3.0
1.0
1.0
3.3V
5V
IN
3.3V
5V
2A LOAD
4A LOAD
= 1.8 )
PFM MODE
IN
IN
IN
IN
IN
PFM MODE
PWM MODE
PFM MODE
3.5
1.5
1.5
PWM MODE
PFM MODE
8
I
I
OUT
1
OUT
V
IN
= 22µF, C
2.0
2.0
4.0
(V)
(A)
(A)
0A LOAD
2.5
2.5
4.5
2
= 2 x 22µF, I
IN
3.0
5.0
3.0
ISL8023, ISL8024
OUT
OUT
5.5
3.5
= 1.5V)
3.5
= 2.5V)
OUT
6.0
4.0
4.0
= 0A to 4A). (Continued)
Unless otherwise noted, operating conditions are: T
FIGURE 15. OUTPUT VOLTAGE REGULATION vs V
FIGURE 11. V
FIGURE 13. V
1.830
1.824
1.818
1.812
1.806
1.800
1.794
3.354
3.345
3.336
3.327
3.318
3.309
3.300
1.836
1.828
1.820
1.812
1.804
1.796
1.788
0.0
2.0
0.0
5V
5V
(PFM V
IN
IN
0.5
2.5
0.5
PWM MODE
PWM MODE
OUT
OUT
3.3V
REGULATION vs LOAD (1MHz, V
REGULATION vs LOAD (1MHz, V
OUT
3.3V
5V
1.0
3.0
1.0
IN
5V
IN
= 1.8V)
2A LOAD
4A LOAD
PFM MODE
IN
IN
PFM MODE
PWM MODE
PFM MODE
1.5
3.5
1.5
I
I
OUT
OUT
V
IN
2.0
4.0
2.0
(V)
(A)
(A)
0A LOAD
2.5
4.5
2.5
A
= +25°C, V
IN
5.0
3.0
3.0
December 22, 2011
OUT
OUT
5.5
3.5
= 1.8V)
3.5
= 3.3V)
VIN
FN7812.0
= 5V,
6.0
4.0
4.0