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User

’s  Guide 

BD9E303EFJ-EVK-001

 

© 2016 ROHM Co., Ltd.

 

No. 60UG018E Rev.002

 

APR.2017

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 13. Loop Response V

IN

 = 12V, V

O

 = 5.0V, I

O

 = 3A 

 

Frequency (Hz) 

Frequency (Hz) 

G

a

in

 (d

B)

 

G

a

in

 (d

B)

 

Ph

a

s

e

 (d

e

g

Ph

a

s

e

 (d

e

g

Phase 

Phase 

Gain 

Gain 

f

C

 = 16.6kHz 

Phase margin = 63.5deg 
Gain margin = 25.1dB 

f

C

 = 18.2kHz 

Phase margin = 70.8deg 
Gain margin = 22.8dB 

Figure 14. Loop Response V

IN

 = 24V, V

O

 = 5.0V, I

O

 = 3A 

 

Содержание BD9E100FJ-LB

Страница 1: ...loop response characteristics also can be adjusted by the phase compensation circuit Performance specification These are representative values and it is not a guaranteed against the characteristics VI...

Страница 2: ...o TP3 and negative terminal to TP4 for output voltage measurement 8 DC power supply output is turned ON 9 IC is enable EN by shorting Jumper pin of SW1 between intermediate terminal and ON side termin...

Страница 3: ...acitor 6800pF 50V B 10 GRM188B11H682KA01 MURATA 1608 0 C8 Ceramic Capacitor Not installed 1608 1 L1 Inductor 10 H 20 DCR 24m max 4 49A NS10155T100MNV TAIYO YUDEN 101101 1 R1 Resistor 30k 1 10W 50V 1 M...

Страница 4: ...4 10 User s Guide BD9E303EFJ EVK 001 2016 ROHM Co Ltd No 60UG018E Rev 002 APR 2017 Layout PCB size 50mm 50mm 1 6mm Figure 3 Top Silk Screen Top view Figure 4 Top Silk Screen and Layout Top view...

Страница 5: ...5 10 User s Guide BD9E303EFJ EVK 001 2016 ROHM Co Ltd No 60UG018E Rev 002 APR 2017 Figure 5 Top Side Layout Top view Figure 6 L2 Layout Top view...

Страница 6: ...6 10 User s Guide BD9E303EFJ EVK 001 2016 ROHM Co Ltd No 60UG018E Rev 002 APR 2017 Figure 7 L3 Layout Top view Figure 8 Bottom Side Layout Top view...

Страница 7: ...ange Input Voltage V IO 1 0A 0 5 0 4 0 3 0 2 0 1 0 0 1 0 2 0 3 0 4 0 5 0 0 5 1 1 5 2 2 5 3 Output Voltage Change Load Current A VIN 12V VIN 24V VO 5 0V Reference Application Data Figure 9 Efficiency v...

Страница 8: ...17 Figure 13 Loop Response VIN 12V VO 5 0V IO 3A Frequency Hz Frequency Hz Gain dB Gain dB Phase deg Phase deg Phase Phase Gain Gain fC 16 6kHz Phase margin 63 5deg Gain margin 25 1dB fC 18 2kHz Phase...

Страница 9: ...ure 16 Input Voltage Ripple Wave VIN 24V VO 5 0V IO 0A IO 3A VIN AC 50mV div VIN AC 100mV div IO 0A IO 3A Time scale 2 s div Time scale 2 s div Time scale 2 s div Time scale 2 s div IO 0A IO 3A VO AC...

Страница 10: ...O 2V div Time scale 100ms div Time scale 100ms div Figure 21 Start up EN VIN VIN 24V VO 5 0V IO 0A Figure 22 Power down EN VIN VIN 24V VO 5 0V IO 0A VIN 5V div EN 5V div VO 2V div Time scale 1ms div T...

Страница 11: ...ch technical information The Products specified in this document are not designed to be radiation tolerant For use of our Products in applications requiring a high degree of reliability as exemplified...

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