Texas Instruments TPS54326EVM-540, User Manual, Page: 4 / 20

2 Test Setup and Results
This section describes how to properly connect, set up, and use the TPS54326EVM-540. The section also
includes test results typical for the evaluation modules and efficiency, output load regulation, output line
regulation, load transient response, output voltage ripple, input voltage ripple, start up and switching frequency.
2.1 Input/Output Connections
The TPS5326EVM-540 is provided with input/output connectors and test points as shown in Table 2-1 . A power
supply capable of supplying 3 A must be connected to J1 through a pair of 20 AWG wires. The load must be
connected to J2 through a pair of 20 AWG wires. The maximum load current capability is 3 A. Wire lengths must
be minimized to reduce losses in the wires. Test point TP1 provides a place to monitor the V
IN
input voltages
with TP2 providing a convenient ground reference. TP8 is used to monitor the output voltage with TP9 as the
ground reference.
Table 2-1. Connection and Test Points
Reference Designator Function
J1 V
IN
(see Table 1-1 for V
IN
range)
J2 V
OUT
, 1.05 V at 3 A maximum
JP1 EN control. Connect EN to OFF to disable, connect EN to ON to enable.
TP1 V
IN
test point at V
IN
connector
TP2 GND test point at V
IN
TP3 EN test point
TP4 V
CC
test point
TP5 Analog ground test point
TP6 Switch node test point
TP7 Power good test point
TP8 Output voltage test point
TP9 Ground test point at output connector
2.2 Start Up Procedure
1. Make sure the jumper at JP1 (Enable control) is set from EN to OFF.
2. Apply appropriate VIN voltage to VIN and PGND terminals at J1.
3. Move the jumper at JP1 (Enable control) to cover EN and ON. The EVM will enable the output voltage.
Test Setup and Results www.ti.com
4 TPS54326 Step-Down Converter Evaluation Module User's Guide SLVU353A – NOVEMBER 2009 – REVISED OCTOBER 2021
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