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© 2021 ROHM Co., Ltd.
No. 63UG030E Rev.001
2021.7
User’s Guide
BD9E304FP4-EVK-001
Reference application data
Figure 7. Operating Quiescent Current vs Input Voltage
（
V
OUT
=1.2V, I
OUT
=0A
）
Figure 8. Switching Frequency vs Input Voltage
(V
OUT
=1.2V, I
OUT
=3A)
Figure 9. Efficiency vs Output Current (V
OUT
=1.2V)
0
20
40
60
80
100
5
6
7
8
9
10
11
12
O
p
er
at
in
g
S
up
pl
y
C
ur
re
n
t:
I
O
P
R
[µ
A
]
Input Voltage: V
IN
[V]
255
270
285
300
315
330
345
5
6
7
8
9
10
11
12
S
w
itc
h
in
g
F
re
q
ue
nc
y:
f
os
c
[k
H
z]
Input Voltage: V
IN
[V]
0
10
20
30
40
50
60
70
80
90
100
1
10
100
1000
10000
E
ff
ic
ie
n
cy
:
ƞ
[%
]
Output Current: I
OUT
[mA]
VIN=5.5V
VIN=10.0V
VIN=12.0V
