ISL6410 Ver la hoja de datos (PDF) - Renesas Electronics
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ISL6410 Datasheet PDF : 26 Pages
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ISL6410, ISL6410A
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 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.
Performance Curves and Waveforms
100
VOUT = 1.8V
90
VOUT = 1.5V
VOUT = 1.2V
80
70
60
50
50
100
IOUT LOAD CURRENT (mA)
1000
FIGURE 4. ISL6410 EFFICIENCY vs LOAD CURRENT
100
IOUT = 200mA
90
80
IOUT = 600mA
70
60
50
2.9
3.1
3.3
3.5
VIN INPUT VOLTAGE (V)
FIGURE 5. ISL6410 VIN vs EFFICIENCY
100
VOUT = 3.3V
90
VOUT = 1.8V
80
VOUT = 1.2V
70
60
50
50
100
IOUT LOAD CURRENT (mA)
1000
FIGURE 6. ISL6410A EFFICIENCY vs LOAD CURRENT
100
IOUT = 200mA
90
IOUT = 600mA
80
70
60
50
4.4
4.6
4.8
5.0
5.2
5.4
5.6
VIN (V)
FIGURE 7. ISL6410A EFFICIENCY vs VIN
FN9149 Rev 3.00
September 17, 2004
Page 9 of 13
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