Datasheet

LOAD1
1.05V @
4A
V2
+
-
LOAD2
1.8V @
4A
V3
-
+
-
+
-
+
A1
-
+
V
VIN
V1
+
-
FAN
www.ti.com Test Procedure
Figure 3. TPS53129EVM-621 Recommended Test Setup
6 Test Procedure
6.1 Start-Up Procedure
1. Prior to connecting the dc input source VIN, it is advisable to limit the source current from V
IN
to 2 Adc
maximum. Ensure that V
IN
is initially set to 0 V.
2. Ensure that LOAD1 and LOAD2 are set to constant-current mode to sink 0 A before V
IN
is applied.
3. Verify that SW1 and SW2 are in the desired position.
4. Place a fan as shown in Figure 3 and turn on, making sure that air is flowing across the EVM.
7
SLVU432–February 2011 TPS53129EVM-621 Evaluation Module
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