Texas Instruments LM61460-Q1 EVM, Руководство пользователя, Страница: 14 / 25

Output Current (A)
O
u
tpu
t Vo
ltag
e
(V
)
0 1 2 3 4 5 6 7
3.29
3.31
3.33
3.35
3.37
SNVS
V
IN
= 8 V
V
IN
= 13.5 V
V
IN
= 24 V
Output Current (A)
O
ut
p
u
t
Vo
lt
a
ge
(V
)
0 1 2 3 4 5 6 7
3.29
3.31
3.33
3.35
3.37
SNVS
V
IN
= 8 V
V
IN
= 13.5 V
V
IN
= 24 V
Output Current (A)
O
ut
p
u
t
Vo
lt
a
ge
(V
)
0 1 2 3 4 5 6 7
4.95
4.97
4.99
5.01
5.03
5.05
5.07
5.09
5.11
SNVS
V
IN
= 8 V
V
IN
= 13.5 V
V
IN
= 24 V
Output Current (A)
O
ut
p
u
t
Vo
lt
a
ge
(V
)
0 1 2 3 4 5 6 7
4.95
4.97
4.99
5.01
5.03
5.05
5.07
5.09
5.11
SNVS
V
IN
= 8 V
V
IN
= 13.5 V
V
IN
= 24 V
Output Current (A)
Ef
fic
ie
nc
y
(%
)
0.001 0.010.02 0.05 0.1 0.2 0.5 1 2 3 4 5 7 10
60%
65%
70%
75%
80%
85%
90%
95%
100%
LM61
V
IN
= 8 V
V
IN
= 13.5 V
V
IN
= 24 V
Output Current (A)
Ef
fic
ie
nc
y
(%
)
0 1 2 3 4 5 6 7
50%
55%
60%
65%
70%
75%
80%
85%
90%
95%
100%
LM61
V
IN
= 8 V
V
IN
= 13.5 V
V
IN
= 24 V
LM61460EVM Board Test Results
www.ti.com
14 SNVU621C – May 2019 – Revised December 2019
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LM61460-Q1 EVM User's Guide
Figure 27. F
SW
= 2.2 MHz, 3.3 VOUT, Auto Mode Figure 28. F
SW
= 2.2 MHz, 3.3 VOUT, FPWM Mode
6.4 Load Regulation
This section provides efficiency plots for the board with LM61460AAS populated for Auto mode efficiency
and LM61460AFS populated for FPWM mode efficiency. For 2-MHz data, the output stage has to be
changed from the default BOM. The inductor (L1) selected was XEL5030-102MEB.
Figure 29. F
SW
= 400 kHz, 5 VOUT, Auto Mode Figure 30. F
SW
= 400 kHz, 5 VOUT, FPWM Mode
Figure 31. F
SW
= 400 kHz, 3.3 VOUT, Auto Mode Figure 32. F
SW
= 400 kHz, 3.3 VOUT, FPWM Mode