Texas Instruments TPS62750EVM-413 Evaluation Module TPS62750EVM-413 TPS62750EVM-413 Datenbogen
Produktcode
TPS62750EVM-413
INPUT CURRENT
V-OUT
PULSE LOAD CURRENT
1 V/div
200 mA/div
500 mA
50
55
60
65
70
75
80
80
90
95
100
0
100
200
300
400
500
600
I
- Output Current - mA
O
V = 4.5 V
I
V = 5 V
I
V = 5.5 V
I
Efficiency-%
5
Board Layout, Schematic, and Bill of Materials
5.1
Board Layout
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Board Layout, Schematic, and Bill of Materials
Figure 6. C4 Added 47
µ
F, 1-A Pulse Load With Current Limit Set to High, Pulse 1154
µ
s at 216 Hz, Time
Base 1 ms
Figure 7. Efficiency With Current Limit Set to High, Vin 5 V, 4.5 V, and 5.5 V
This section provides the TPS62750EVM-413 board layout, schematic, and bill of materials.
Board layout is critical for all high-frequency, switch-mode power supplies. If the layout is not carefully
done, the regulator can show stability and EMI problems. Therefore, use wide and short traces for the
main current path and for the power ground tracks. The input and output capacitor, as well as the inductor,
must be placed as close as possible to the integrated circuit. Use a common ground node for power
ground to minimize the effects of ground noise.
done, the regulator can show stability and EMI problems. Therefore, use wide and short traces for the
main current path and for the power ground tracks. The input and output capacitor, as well as the inductor,
must be placed as close as possible to the integrated circuit. Use a common ground node for power
ground to minimize the effects of ground noise.
through
show the board layout for the
TPS62750EVM-413 PCB.
SLVU322 – August 2008
TPS62750EVM-413
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