Enable
Jumper
V
OUT
Selection
Jumper
Setup
4
SNVU573A – August 2017 – Revised March 2018
Copyright © 2017–2018, Texas Instruments Incorporated
LMR33630 EVM User’s Guide
Figure 3. Jumper Locations
1.2
Test Points
•
VIN -
Input supply to EVM. Connect to a suitable input supply. See LMR33630 data sheets 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 5V. On-board PGOOD pull-up
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
