LM2672 Series Buck Regulator Design Procedure (Adjustable Output)

(Continued)

Output Capacitor

Cap.

Ref.

Desg.

#

Surface Mount

Through Hole

Sprague

AVX TPS

Sanyo OS-CON

Sanyo MV-GX

Nichicon

Panasonic

594D Series

Series

SA Series

Series

PL Series

HFQ Series

(µF/V)

(µF/V)

(µF/V)

(µF/V)

(µF/V)

(µF/V)

C1

120/6.3

100/10

100/10

220/35

220/35

220/35

C2

120/6.3

100/10

100/10

150/35

150/35

150/35

C3

120/6.3

100/10

100/35

120/35

120/35

120/35

C4

68/10

100/10

68/10

220/35

220/35

220/35

C5

100/16

100/10

100/10

150/35

150/35

150/35

C6

100/16

100/10

100/10

120/35

120/35

120/35

C7

68/10

100/10

68/10

150/35

150/35

150/35

C8

100/16

100/10

100/10

330/35

330/35

330/35

C9

100/16

100/16

100/16

330/35

330/35

330/35

C10

100/16

100/16

68/16

220/35

220/35

220/35

C11

100/16

100/16

68/16

150/35

150/35

150/35

C12

100/16

100/16

68/16

120/35

120/35

120/35

C13

100/16

100/16

100/16

120/35

120/35

120/35

C14

100/16

100/16

100/16

220/35

220/35

220/35

C15

47/20

68/20

47/20

220/35

220/35

220/35

C16

47/20

68/20

47/20

150/35

150/35

150/35

C17

47/20

68/20

47/20

120/35

120/35

120/35

C18

68/25

(2x) 33/25

47/25 (Note 8)

220/35

220/35

220/35

C19

33/25

33/25

33/25 (Note 8)

150/35

150/35

150/35

C20

33/25

33/25

33/25 (Note 8)

120/35

120/35

120/35

C21

33/35

(2x) 22/25

(Note 9)

150/35

150/35

150/35

C22

33/35

22/35

(Note 9)

120/35

120/35

120/35

C23

(Note 9)

(Note 9)

(Note 9)

220/50

100/50

120/50

C24

(Note 9)

(Note 9)

(Note 9)

150/50

100/50

120/50

C25

(Note 9)

(Note 9)

(Note 9)

150/50

82/50

82/50

Note 8: The SC series of Os-Con capacitors (others are SA series)

Note 9: The voltage ratings of the surface mount tantalum chip and Os-Con capacitors are too low to work at these voltages.

FIGURE 17. Output Capacitor Selection Table

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