isl8033 Intersil Corporation, isl8033 Datasheet - Page 8

• Manufacturer Part Number: isl8033
• Description: Dual 3a Low Quiescent Current High Efficiency Synchronous Buck Regulator
• Manufacturer: Intersil Corporation

Typical Operating Performance ISL8033
Unless otherwise noted, operating conditions are: T
V
OUT1
FIGURE 4. POWER DISSIPATION, T
FIGURE 6. LOAD REGULATION, V
1.500
1.495
1.490
1.485
1.480
1.475
1.470
FIGURE 2. EFFICIENCY, T
100
1.2
1.0
0.8
0.6
0.4
0.2
90
80
70
60
50
40
= 1.2V, V
0
0.0
0.0
0
V
T
A
OUT
OUT2
1.8V
0.5
0.5
= +25°C
0.5
= 1.8V
OUT
= 1.8V, I
5V
1.0
1.0
1.0
IN
2.5V
I
OUT
5V
OUT1
I
I
8
OUT
OUT
OUT
IN
1.5
1.5
(A)
A
1.2V
1.5
(A)
= I
(A)
= +25°C V
OUT2
OUT
OUT
2.0
2.0
3.3V
A
2.0
= 0A to 3A.
= +25°C
3.3V
= 1.5V
1.5V
IN
IN
IN
A
ISL8033, ISL8033A
2.5
OUT
2.5
= +25°C, V
2.5
= 3.3V
3.0
3.0
3.0
IN
= 5V, EN = V
FIGURE 5. LOAD REGULATION, V
FIGURE 7. LOAD REGULATION, V
1.210
1.205
1.200
1.195
1.190
1.185
1.180
1.800
1.795
1.790
1.785
1.780
1.775
1.770
100
FIGURE 3. EFFICIENCY, T
90
80
70
60
50
40
0.0
IN
0.0
0
, L1 = L2 = 1.5µH, C1 = C2 = C4 = 2x22µF,
3.3V
T
T
A
A
0.5
= +25°C
= +25°C
0.5
OUT
0.5
5V
1.8V
IN
5V
IN
OUT
1.0
1.0
1.0
I
2.5V
OUT
IOUT (A)
I
OUT
1.5
1.5
1.5
OUT
A
(A)
(A)
= +25°C, V
1.2V
OUT
OUT
3.3V
2.0
3.3V
OUT
2.0
2.0
= 1.2V
= 1.8V
IN
IN
1.5V
2.5
October 21, 2010
IN
2.5
2.5
OUT
= 5V
FN6854.1
3.0
3.0
3.0