Power Good
Jumper
Enable Jumper
Feedback
Jumper
Posts, Probes, and Jumpers
4
SNVU636 – November 2018
Copyright © 2018, Texas Instruments Incorporated
LMR36015xxxEVM User’s Guide
1.2
Jumpers
See
for jumper locations.
•
EN -
This jumper allows the ENABLE input to be connected to either GND (OFF) or VIN (ON). The 2-
to-3 position enables the device; while the 1-to-2 position disables the device. Remove this jumper to
allow an external logic signal to control the EN function.
•
VOUT -
Use this jumper to select one of the two pre-defined output voltages. The 2-to-3 position
provides a 3.3-V output; while the 1-to-2 position provides a 5-V output.
•
PGOOD -
Use this jumper to select the PGOOD pullup configuration. PGOOD can be connected to
either VOUT or VCC. The 2-to-3 position connects PGOOD to VOUT, while the 1-to-2 position
connects PGOOD to VCC.
Figure 2. Jumper Locations
1.3
Test Points
•
VOUTS -
Output voltage sense connection; connect to DMM. Also, use for frequency response
analyzer connection.
•
VINS -
Input voltage sense connection; connect to DMM.
•
GNDS1 and GNDS2 -
Ground sense point for analog measurements; connect to DMM.
•
VCC -
Test point to measure internal VCC of device; approximately 5 V.
•
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 or VOUT through a 100-k
Ω
resistor. The power-good function can be monitored at this test point.