Texas Instruments TPS53015, User Manual

Page: 7 / 18

7 Test Procedure
7.1 Line/Load Regulation and Efficiency Measurement Procedure
1. Set up the EVM as described in Section 5 and Figure 5-2 .
2. Ensure Load is set to constant resistance mode and to sink 0 A
DC
.
3. Ensure the switch S1 is set per Section 6 .
4. Increase V
IN
from 0 V to 12 V. Using V1 to measure V
IN
voltage.
5. Set the switch S1 to Enable position to enable the controller.
6. Use V2 to measure V
OUT
voltage and A1 to measure VIN current.
7. Vary load from 0 A–8 A
DC
. V
OUT
should remain in load regulation.
8. Vary V
IN
from 8.0 V to 22 V. V
OUT
should remain in line regulation.
9. Set the switch S1 to Disable position to disable the controller.
10. Decrease load to 0 A.
11. Decrease VIN to 0 V.
7.2 List of Test Points
Table 7-1. Test Point Functions
TEST POINTS NAME DESCRIPTION
TP1 VIN Input voltage
TP2 GND GND
TP3 VREG5 Output of 5-V linear regulator
TP4 PG Power good
TP5 EN Enable pin
TP6 SW Switching node
TP7 VOUT Output voltage
TP8 GND GND
TP9 GND GND
TP10 GND GND
7.3 Equipment Shutdown
1. Shut down VIN.
2. Shut down Load.
3. Shut down FAN.
www.ti.com Test Procedure
SLUU944A – JUNE 2012 – REVISED DECEMBER 2021
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TPS53015 Buck Controller Evaluation Module User's Guide 7
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