Modifications
3
SLUUBZ4 – February 2019
Copyright © 2019, Texas Instruments Incorporated
TPS562231EVM 2-A, Synchronous step-down converter evaluation module
3
Modifications
These evaluation modules are designed to provide access to the features of the TPS562231. Some
modifications can be made to this module.
3.1
Output Voltage Setpoint
To change the output voltage of the EVMs, it is necessary to change the value of resistor R5. Changing
the value of R5 can change the output voltage above 0.6 V. The value of R5 for a specific output voltage
can be calculated using
.
(1)
lists the R5 values for some common output voltages. Note that the values given in
are
standard values and not the exact value calculated using
.
Table 3. Output Voltages
OUTPUT VOLTAGE
(V)
R5
(k
Ω
)
R6
(k
Ω
)
L1
(µH)
C5 + C6 +C7
(µF)
Min
Typ
Max
1.0
6.65
10.0
1
1.5
4.7
20 - 68
1.05
7.5
10.0
1
1.5
4.7
20 - 68
1.2
10
10.0
1
1.5
4.7
20 - 68
1.5
15
10.0
1.5
2.2
4.7
20 - 68
1.8
20
10.0
1.5
2.2
4.7
20 - 68
2.5
31.6
10.0
2.2
3.3
4.7
20 - 68
3.3
45.3
10.0
2.2
3.3
4.7
20 - 68
5.0
73.2
10.0
3.3
4.7
4.7
20 - 68
6.5
98.3
10.0
3.3
4.7
4.7
20 - 68