V
OUT
Selection
Jumper
Enable
Jumper
Setup
5
SNVU583 – February 2018
Copyright © 2018, Texas Instruments Incorporated
LMR33630xRNXEVM User’s Guide
Figure 4. Jumper Locations
1.2
Test Points
•
VIN -
Input supply to EVM. Connect to a suitable input supply. See the
for input
supply requirements.
•
GND -
System power ground
•
VOUT -
Power output of EVM. Connect to desired load.
•
VOS -
Output voltage sense connection; connect to DMM. Also, used for frequency response analyzer
connection.
•
VIS -
Input voltage sense connection; connect to DMM.
•
GNDS -
Ground sense point for analog measurements; connect to DMM.
•
VCC -
Test point to measure internal VCC of device; approximately 5 V. On-board PGOOD pullup
resistor is connected to VCC.
•
EN -
Connection for external EN logic input. Remove EN jumper and connect controlling logic to EN
test point for external enable control.
•
PGOOD -
Power good flag output. This test point is connected to VCC through a 20-k
Ω
resistor. The
power-good function can be monitored at this test point.
•
A -
Connection for frequency response analyzer (on bottom of board) - see
.
