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© 2020 ROHM Co., Ltd.
No. 63UG064E Rev. 002
Apr. 2022
User’s Guide
BD9B305QUZ-EVK-001
Reference Application Data
Figure 8. Efficiency vs Output current
(VIN=3.3V / 5V, VOUT=1.8V)
Figure 9. Load regulation
(VIN=3.3V / 5V, VOUT=1.8V)
Figure 10. Output ripple voltage
(VIN=5V, IOUT=0.1A)
Figure 11. Output ripple voltage
(VIN=5V, IOUT=3A)
50
55
60
65
70
75
80
85
90
95
100
0.001
0.01
0.1
1
10
E
ff
ic
ie
nc
y
[%
]
IOUT[A]
VIN=3.3V
VIN=5V
1.780
1.785
1.790
1.795
1.800
1.805
1.810
1.815
1.820
0
0.5
1
1.5
2
2.5
3
V
OUT [V]
IOUT[A]
VIN=3.3V
VIN=5V
VOUT: 20mV/div
VOUT: 20mV/div
SW: 2V/div
SW: 2V/div
2
μ
s/div
2
μ
s/div