Texas Instruments TPS5430, Руководство пользователя

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Table 2-1. EVM Connectors and Test Points
Reference Designator Function
J1 VIN (see Table 1-1 for Vin range)
J2 OUT, 5 V at 3 A maximum
JP1 2-pin header for enable. Connect EN to ground to disable, open to enable.
TP1 VIN test point at VIN connector
TP2 GND test point at VIN
TP3 Output voltage test point at OUT connector
TP4 GND test point at OUT connector
TP5 Test point between voltage divider network and R3. Used for loop response measurements.
TP6 PH test point
2.2 Efficiency
The efficiency for both EVMs peak at a load current of about 0.75 A and then decrease as the load current
increases towards full load.
Figure 2-1 shows the efficiency for the TPS5430EVM-173 at an ambient temperature
of 25°C.
75
80
85
90
95
100
0 0.5 1 1.5 2 2.5 3 3.5
V = 10 V
IN
V = 15 V
IN
V = 20 V
IN
V = 25 V
IN
V = 30 V
IN
V = 35 V
IN
EFFICIENCY
vs
OUTPUT CURRENT
Efficiency-%
I - Output Current - A
O
Figure 2-1. TPS5430 Efficiency
Figure 2-2 shows the efficiency for the TPS5431EVM-173 at an ambient temperature of 25°C.
Test Setup and Results www.ti.com
4 TPS5430 and TPS5431 Step-Down Converter Evaluation Module User's
Guide SLVU157A – MARCH 2006 – REVISED OCTOBER 2021
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