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Test Setup and Results www.ti.com
4 Test Setup and Results
This section describes how to properly connect, set up, and use the TPS54525EVM-608. 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.
4.1 Input/Output Connections
The TPS54525EVM-608 is provided with input/output connectors and test points as shown in Table 4. A
power supply capable of supplying 2 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 2 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. TP7 is used to monitor the output
voltage with TP8 as the ground reference.
Table 4. Connection and Test Points
Reference Designator Function
J1 V
IN
(see Table 1 for V
IN
range)
J2 V
OUT
, 1.05 V at 5.5 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 Analog ground test point
TP5 Switch node test point
TP6 Power good test point
TP7 Output voltage test point
TP8 Ground test point at output connector
4.2 Start-Up Procedure
1. Ensure that 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 enables the output voltage.
4
TPS54525EVM-608 5.5-A, SWIFT™ Regulator Evaluation Module SLVU643–May 2012
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