Texas Instruments Evaluation Module for TPS54426 4.5V to 18V Input, 4A Synchronous Step-Down SWIFT Converter TPS54426EVM TPS54426EVM-608 Datenbogen
Produktcode
TPS54426EVM-608
0
10
20
30
40
50
60
70
80
90
100
0
0.5
1
1.5
2
2.5
3
3.5
4
Output Current - A
E
ff
ic
ie
c
n
y
-
%
VOUT = 1.05 V
VIN = 5 V
VIN = 12 V
Test Setup and Results
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Table 4. Connection and Test Points
Reference Designator
Function
J1
V
IN
(see
for V
IN
range)
J2
V
OUT
, 1.05 V at 4 A maximum
JP1
EN control. Connect EN to OFF to disable, connect EN to ON to enable.
TP1
V
IN
test point at V
IN
connector
TP2
GND test point at V
IN
TP3
EN test point
TP4
Analog ground test point
TP5
Switch node test point
TP6
Power good test point
TP7
Output voltage test point
TP8
Ground test point at output connector
2.2
Start Up Procedure
1. Make sure the jumper at JP1 (Enable control) is set from EN to OFF.
2. Apply appropriate VIN voltage to VIN and PGND terminals at J1.
3. Move the jumper at JP1 (Enable control) to cover EN and ON. The EVM will enable the output voltage.
2. Apply appropriate VIN voltage to VIN and PGND terminals at J1.
3. Move the jumper at JP1 (Enable control) to cover EN and ON. The EVM will enable the output voltage.
2.3
Efficiency
shows the efficiency for the TPS54426EVM-608 at an ambient temperature of 25°C.
Figure 1. TPS54426EVM-608 Efficiency
4
TPS54426EVM-608 4-A, SWIFT™ Regulator Evaluation Module
SLVU381 – August 2010
Copyright © 2010, Texas Instruments Incorporated