el7563cre-t7 Intersil Corporation, el7563cre-t7 Datasheet - Page 6

• Manufacturer Part Number: el7563cre-t7
• Description: Monolithic 4 Amp Dc Dc Step-down Regulator
• Manufacturer: Intersil Corporation

Typical Performance Curves (20 Pin SO Package)
NOTE: The 28-Pin HTSSOP Package Offers Improved Performance
FIGURE 3. EL7563CM CONVERTER POWER LOSS vs I
2.505
2.495
2.485
2.475
2.465
FIGURE 7. EL7563CM T
2.49
2.48
2.47
1.8
1.6
1.4
1.2
0.8
0.6
0.4
0.2
FIGURE 5. EL7563CM LOAD REGULATION
2.5
50
46
42
38
34
30
1
0
0.5
1
0
V
TEST CONDITION:
CHIP IN THE CENTER OF COPPER AREA
V
IN
O
=3.3V
=2.5V
PCB COPPER HEAT-SINKING AREA (in
0.5
1.5
1
OUTPUT CURRENT I
1
1.5
LOAD CURRENT I
2
1.5
WITH 100 LFPM AIRFLOW
2
6
1 OZ. COPPER PCB USED
JA
2.5
2
V
vs COPPER AREA
2.5
WITH NO AIRFLOW
O
V
=1.2V
2.5
IN
V
V
O
IN
O
=3.6V
3
O
=2.5V
=3V
(A)
(A)
3
V
3
O
V
=1.8V
V
3.5
IN
O
3.5
3.5
=3.3V
=1V
2
)
4
4
4
O
EL7563
(Continued)
FIGURE 4. EL7563CRE TOTAL CONVERTER POWER LOSS
FIGURE 8. EL7563CRE THERMAL RESISTANCE vs PCB
-0.2
-0.4
-0.6
-0.8
50
45
40
35
30
25
1.6
1.4
1.2
0.8
0.6
0.4
0.2
0.6
0.4
0.2
FIGURE 6. EL7563CRE LOAD REGULATION
1
0
0
0
CONDITION:
EL7563CRE THERMAL PAD SOLDERED TO 2-LAYER
PCB WITH 0.039” THICKNESS AND 1 OZ. COPPER ON
BOTH SIDES
0
0
V
O
AREA - NO AIR FLOW
=2.5V
0.5
1.5
1
1
V
V
2
IN
PCB AREA (in
IN
=3V
1.5
=3.3V
I
I
2.5
O
O
2
2
(A)
(A)
2.5
V
2
)
3
O
=2.5V
V
3
3
IN
V
3.5
O
=3.6V
=1.2V
3.5
4
May 13, 2005
4
4
FN7296.2