Datasheet

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5.2 Equipment Setup
LOAD1
1.8V @
10A
-
+
FAN
TP17
TEXAS INSTRUMENTS
TPS40193EVM-001
12V to 1.8V @ 10A
HPA238
J2
V2
-
+
TP16
TP15
Pre-Bias
See Tip and Barrel
Measurement for
Vout ripple
+
-
-
+
V1
+
-
A1
-
+
V
VIN
TP7 TP9 TP10 TP8
TP12 TP11 TP13 TP14
GND LDRVSW HDRV
CH1 GND CH2 GND
TP2
TP1
Oscilloscope
1MW, AC
20mV / div
20MHz
J1
Dis
TP6
COMP
TP5
TP4
TP3
External Source
GND
PGOOD
En
JP 1
TP16TP15
ProbeTip
MetalGroundBarrier
TipandBarrelV
ripplemeasurement
OUT
Test Setup
Figure 2 through Figure 4 show the basic test setup recommended to evaluate the TPS40193EVM-001.
Please note that although the return for J1 and J2 are the same, the connections should remain separate,
as shown in Figure 2 .
Figure 2. TPS40193EVM-001 Recommended Test Setup
Figure 3. TPS40193EVM-001 Output Ripple Measurement—Tip and Barrel Using TP15 and TP16
SLUU274 – May 2007 Using the TPS40193EVM-001 9
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