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Typical operating circuits (continued) – Rainbow Electronics MAX15022 User Manual

Page 26

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MAX15022

Dual, 4A/2A, 4MHz, Step-Down DC-DC
Regulator with Dual LDO Controllers

26

______________________________________________________________________________________

Typical Operating Circuits (continued)

C

I2

MAX15022

LX2

PGND2

EN1

DVDD1

RT

SEL

COMP1

SGND

AVIN

EN2 PVIN2

DVDD2

C

DD1

C

CF2

C

F2

R

F2

R

T

R

I2

R

1

C

1

V

IN

R

1FB1

R

I1

R

S2

L

2

R

2FB2

R

2FB1

R

1FB2

C

T

C

2

C

I1

C

OUT2

V

OUT2

V

AVIN

C

S2

C

IN2

C

DD2

FB2

V

IN

PVIN1

C

IN1

V

IN

COMP2

C

CF1

C

F1

R

F1

LX1

PGND1

FB1

R

S1

L

1

C

OUT1

V

OUT1

C

S1

R

2EN4

R

1EN4

R

P2

R

1EN3

R

1FB3

R

2FB3

R

P1

C

OUT3

C

P1

PGND

SGND

B3

FB4

EN4

EN3

FB3

B4

Q

1

Q

2

V

OUT3

V

OUT4

R

2EN3

R

2FB4

R

1FB4

C

OUT4

C

E1

C

P2

C

E2

Figure 8. MAX15022 Double Buck with Sequencing and Two Additional LDOs

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