ISL8201MEVAL1Z Intersil, ISL8201MEVAL1Z Datasheet - Page 13

• Manufacturer Part Number: ISL8201MEVAL1Z
• Description: BOARD EVAL STEP-DOWN POL ISL8201
• Manufacturer: Intersil

Specifications of ISL8201MEVAL1Z

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 1.5V
• Current - Output: 10A
• Voltage - Input: 1 ~ 20 V
• Regulator Topology: Buck
• Frequency - Switching: 600kHz
• Board Type: Fully Populated
• Utilized Ic / Part: ISL8201
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / Rohs Status: Compliant

• The ground connection between pin 11 and pin 1 to 4
• Place a high frequency ceramic capacitor between (1) VIN
• Use large copper areas for power path (VIN, PGND,
• Keep the trace connection to the feedback resistor short
• Avoid routing any sensitive signal traces near the PHASE
FIGURE 22. POWER LOSS vs LOAD CURRENT (5V
should be a solid ground plane under the module.
and PGND (pin 11) and (2) PVCC and PGND (pin 1 to 4)
as close to the module as possible to minimize high
frequency noise
VOUT) to minimize conduction loss and thermal stress.
Also, use multiple vias to connect the power planes in
different layers.
node
FIGURE 24. POWER LOSS vs LOAD CURRENT (12V
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
0
0.6V
2
2
1.5V
LOAD CURRENT (A)
LOAD CURRENT (A)
4
13
4
2.5V
1.5V
0.6V
3.3V
6
6
3.3V
5.0V
8
8
IN
)
IN
10
10
)
ISL8201M
Thermal Considerations
Experimental power loss curves along with θ
modeling analysis can be used to evaluate the thermal
consideration for the module. The derating curves are
derived from the maximum power allowed while maintaining
the temperature below the maximum junction temperature of
+125°C. In actual application, other heat sources and design
margin should be considered.
12
10
12
10
8
6
4
2
0
8
6
4
2
0
60
60
FIGURE 25. DERATING CURVE (12V
FIGURE 23. DERATING CURVE (5V
70
70
AMBIENT TEMPERATURE (°C)
AMBIENT TEMPERATURE (°C)
5.0V
3.3V
80
80
2.5V
1.5V
90
90
3.3V
0.6V
1.5V
JA
100
100
IN
IN
from thermal
)
)
0.6V
July 16, 2009
FN6657.1
110
110