ISL6410A Intersil Corporation, ISL6410A Datasheet - Page 9

• Manufacturer Part Number: ISL6410A
• Description: Single Synchronous Buck Regulators with Integrated FET
• Manufacturer: Intersil Corporation

Layout Considerations
As in all switching power supplies, the layout is an important
step in the design process, more so at high peak currents
and switching frequencies. Improper layout practice will give
rise to Stability and EMI issues. It is recommended that wide
and short traces are used for the main current paths. The
Performance Curves and Waveforms
100
100
90
80
70
60
50
FIGURE 6. ISL6410A EFFICIENCY vs LOAD CURRENT
90
80
70
60
50
FIGURE 4. ISL6410 EFFICIENCY vs LOAD CURRENT
50
50
100
100
IOUT LOAD CURRENT (mA)
IOUT LOAD CURRENT (mA)
VOUT = 1.5V
VOUT = 1.2V
VOUT = 1.2V
9
VOUT = 3.3V
VOUT = 1.8V
VOUT = 1.8V
ISL6410, ISL6410A
1000
1000
input capacitor should be placed as close as possible to the
IC pins. This applies to the output inductor and capacitor as
well. The analog ground, GND, and the power ground,
PGND, need to be separated. Use a common ground node
to minimize the effects of ground noise.
100
100
90
80
70
60
50
90
80
70
60
50
4.4
2.9
FIGURE 7. ISL6410A EFFICIENCY vs VIN
IOUT = 200mA
IOUT = 600mA
IOUT = 200mA
FIGURE 5. ISL6410 VIN vs EFFICIENCY
IOUT = 600mA
4.6
3.1
VIN INPUT VOLTAGE (V)
4.8
VIN (V)
5.0
3.3
5.2
5.4
3.5
5.6