Texas Instruments LM63625-Q1, Руководство пользователя, Страница: 4 / 20

5V or 3.3V
Output Voltage
Selection Jumper
FPWM or Auto
Selection Jumper
GND VOUT
G
N
D
S
VOS
TOP FRONT
BOTTOM FRONT
VIS
VIN
Load
(+) (-)
Input
Supply
(-) (+)
DMM
(-) (+)
DMM
(-) (+)
Setup
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4 SNVU599A – February 2019 – Revised October 2019
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LM63625EVM EVM User’s Guide
Advance Information
Figure 2. EVM Card Edge Connections
1.1 Jumpers
See Figure 3 for jumper locations.
• J1 This jumper allows the VOUT_SEL pin input to be connected to either VCC or GND for a fixed
output voltage selection of 3.3 V or 5 V, respectively. Alternatively, the jumper can be left open and a
R
VOUTSEL
can be populated with 10 k
Ω
to have the part operate with an adjustable output voltage. See
the LM636x5-Q1 3.5-V to 36-V, 1.5-A, and 2.5-A Automotive Step-down Voltage Converter Data Sheet
for feedback resistor calculation.
• J2 This jumper allows SYNC to be connected in this mode to either VCC or GND. When connected to
VCC, the part operates in forced pulse width modulation (FPWM) mode and when the SYNC pin is
connected to GND, the part operates in auto mode where pulse frequency modulation (PFM) is
engaged.
Figure 3. Jumper Locations