Rainbow-electronics MAX5098A Manual do Utilizador descarregar pdf (Página 27)

MAX5098A

Dual, 2.2MHz, Automotive Buck or Boost

Converter with 80V Load-Dump Protection

______________________________________________________________________________________ 27

BST2/VDD2

SOURCE2

PGND1

FB2

COMP2

PGOOD2

EN2

SYNC

0.1μF

22μF

4.7μF

35V

4.7μH

C20

33pF

2700pF

12.7Ω

270pF

52.3kΩ

R22

10kΩ

976Ω

R12

6.49Ω

C11

0.22μF

C12

2.2μF

C13

4.7μF

VOUT1

PGND

SGND

CLOCK OUT

VDRV

BST1/VDD1

SOURCE1

CKO

FB1

COMP1

PGOOD1

EN1

FSEL_1

IN_HIGH

ON/OFF

GATE

V+

DRAIN1

DRAIN2

OSC

BYPASS

SGND

VDRV

3.9kΩ

22 23 2 3

22μF

100V

150μF

25V

C19

1μF

25V

10μF

25V

C15

10μF

25V

VDRV

1427

PGND2

= 5.2V

TO 19V

VOUT1 =

5V AT 2A

R21

1Ω

MAX5098A

VIN

PGND

C14

0.1μF

22μF

4.7μH

C21

56pF

C17

2700pF

R18

7.15Ω

C16

270pF

R15

37.4kΩ

R23

10kΩ

R16

12.1kΩ

R17

976Ω

VOUT2

PGND

SGND

VDRV

VOUT2 = 3.3V

AT 1A

Typical Application Circuit

1 2 ... 22 23 24 25 26 27 28

MAX5098A 1

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