Datasheet

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VOUT
IOUT
0mA
680mA
20µs/div
Vin=3.6V
VOUT=1.5V
Vsel.=high,forcedPWM
20mV/div
500mA/div
status
8/25/200610:06:17 AM
X1=134.7995 s X=0.0nsm D
X2=134.7995 s1/ X=---m D
P5...
value
Measure P1... P2freq(C1)
9.7641MHz
P4... P6...P3...
5 Board Layout
5.1 Layout
Board Layout
Figure 7. Load Transient, 680 mA to 0 mA Step
This section provides the TPS62351EVM-122 board layout and illustrations.
Board layout is critical for all high frequency switch mode power supplies. Figure 8 through Figure 11 show
the board layout for the TPS62351EVM-122 PWB. The nodes with high switching frequencies and
currents are kept as short as possible to minimize trace inductance. Careful attention has been given to
the routing of high frequency current loops and a single point grounding scheme is used. See the data
sheet for the specific layout guidelines.
12 TPS62351EVM SLVU186 – October 2006
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