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Test Setup and Results
Reference Designator
J1
V
J2
2-pin header for enable. Connect EN to ground to disable, open to enable.
J3
2-pin header for slow start monitor and GND.
J4
V
TP1
V
TP2
GND test point at V
TP3
PH test point
TP4
Test point between voltage divider network and output. Used for loop response measurements.
TP5
Output voltage test point at OUT connector
TP6
GND test point at OUT connector
2.2 Efficiency
The efficiency of this EVM peaks at a load current of about 0.5 A with V
current increases towards full load.
temperature of 25°C.
Figure 2-2
shows the efficiency for the TPS54232EVM-415 at lower output currents between 0.02 A and 0.20 A
at an ambient temperature of 25°C.
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TPS54232 Step-Down Converter Evaluation Module User's Guide
Table 2-1. EVM Connectors and Test Points
(see
Table 1-1
for V
range)
IN
IN
, 2.5 V at 2 A maximum
OUT
test point at V
connector
IN
IN
IN
Figure 2-1
shows the efficiency for the TPS54232EVM-415 at an ambient
100
V = 3.3 V
O
95
90
V = 12 V
85
I
80
75
70
65
60
0
0.25
0.5
I - Output Current - A
O
Figure 2-1. TPS54232EVM-415 Efficiency
Copyright © 2021 Texas Instruments Incorporated
Function
= 5 V, and then decreases as the load
IN
V = 5 V
I
V = 15 V
I
0.75
1
1.25
1.5
1.75
SLVU277A – JANUARY 2009 – REVISED OCTOBER 2021
www.ti.com
2
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