9/25
© 2022 ROHM Co., Ltd.
65UG028E Rev.001
2022.7
User's Guide
BD7F105EFJ-EVK-001
Figure 17. MOSFET Waveform
Vin = 12 V, IOUT1,3 = 0.1 A, IOUT2 = 0.05 A
Figure 18. MOSFET Waveform
Vin = 12 V, IOUT1,3 = 0.3 A, IOUT2 = 0.1 A
Figure 21. Output voltage ripple Waveform
VIN = 12 V / IO1,2,3=0.1, 0.05, 0.1 A
Figure 22. Output voltage ripple Waveform
VIN = 12 V / IO1,2,3=0.3, 0.1, 0.3 A
Measured data-continued
3.
Switching waveform
4.
Load response waveform
5.
Output ripple voltage waveform
V
SW
(20V/div)
V
OUT1
(10V/div)
V
SW
(20V/div)
V
OUT1
(10V/div)
V
OUT2
(10V/div)
V
OUT3
(10V/div)
V
OUT2
(10V/div)
V
OUT3
(10V/div)
V
SW
(20V/div)
V
SW
(20V/div)
V
OUT1
(1Vac/div)
V
OUT2
(1Vac/div)
V
OUT3
(1Vac/div)
I
OUT1
(200mA/div)
Figure 19. Load response
Vin = 12 V, IOUT2 = 0.05 A, IOUT3 = 0.1 A
IOUT1 = 30 mA to 300 mA
V
OUT2
(1Vac/div)
V
OUT1
(1Vac/div)
V
OUT3
(1Vac/div)
I
OUT2
(200mA/div)
Figure 20. Load response
Vin = 12 V, IOUT1 = 0.1 A, IOUT3 = 0.1 A
IOUT2 = 10 mA to 100 mA
V
OUT1
(50mVac/div)
V
OUT2
(50mVac/div)
V
OUT3
(50mVac/div)
V
OUT1
(50mVac/div)
V
OUT2
(50mVac/div)
V
OUT3
(50mVac/div)
*This ripple is due to spread spectrum.