Texas Instruments TPS53015, User Manual

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5.2 Recommended Test Setup
Figure 5-2 is the recommended test setup to evaluate the TPS53015EVM-126. Working at an ESD workstation,
make sure that any wrist straps, bootstraps, or mats are connected referencing the user to earth ground before
power is applied to the EVM.
Figure 5-2. TPS53015EVM-126 Recommended Test Setup
Input Connections:
• Prior to connecting the DC input source V
IN
, it is advisable to limit the source current from VIN to 2-A
maximum. Make sure VIN is initially set to 0 V and connected to J2 as shown in Figure 5-2 .
• Connect a current meter A1 between VIN and J1 to measure the input current.
• Connect a voltmeter V1 at TP1 (VIN) and TP2 (GND) to measure the input voltage.
Output Connections:
• Connect Load to J2 and set load to constant resistance mode to sink 0 A
DC
before VIN is applied.
• Connect a voltmeter V2 at TP7 (VOUT) and TP8 (GND) to measure the output voltage.
Other Connections: Place a fan as shown in Figure 5-2 and turn on, making sure air is flowing across the EVM.
6 Configurations
6.1 Enable/Disable Switch S1
The TPS53015EVM-126 is equipped with a switch (S1) to drive the EN pin of the TPS53015. When S1 is
in the Enable position, EN is connected to VIN, and the TPS53015 is enabled and generates a regulated
1.05-V output. When S1 is in the Disable position, EN is connected to GND, and the TPS53015 enters a high
impedance output state.
Default setting: Set S1 to the Disabled position to disable the controller.
Test Setup www.ti.com
6 TPS53015 Buck Controller Evaluation Module User's Guide SLUU944A – JUNE 2012 – REVISED DECEMBER 2021
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