ADP5053

Data Sheet

Rev. B | Page 34 of 36

VREG

VREG

CHANNEL 2

BUCK REGULATOR

(1.2A/2.5A/4A)

CHANNEL 3

BUCK REGULATOR

(1.2A)

OSCILLATOR

INT VREG

100mA

Q1

Q2

L1

1.5µH

1.5µH

6.8µH

10µH

L2

5V REG

SYNC/MODE

RT

FB1

BST1

SW1

DL1

PGND

DL2

SW2

BST2

FB2

VREG

L3

BST3

SW3

FB3

PGND3

L4

BST4

SW4

FB4

PGND4

VREG

PVIN1

COMP1

EN1

PVIN2

COMP2

EN2

PVIN3

SS34

COMP3

EN3

PVIN4

COMP4

EN4

C2

10µF

4.7nF

10kΩ

100kΩ

600kΩ

31.6kΩ

2.7nF

6.81kΩ

2.7nF

6.81kΩ

C1

1.0µF

C4

100µF

C3

0.1µF

C5

10µF

C6

0.1µF

C8

10µF

C9

0.1µF

C10

22µF

C11

10µF

C12

0.1µF

C13

22µF

12V

VOUT1

VOUT3

1.2V/8A

1.5V/1.2A

3.3V/1.2A

VOUT4

22kΩ

22kΩ

5V REG

EXPOSED PAD

SS12

C0

1.0µF

VDD

WATCHDOG AND

RESET

VTH

WDI

ADP5053

CHANNEL 1

BUCK REGULATOR

(1.2A/2.5A/4A)

CHANNEL 4

BUCK REGULATOR

(1.2A)

C18

100µF

VREG

MR

RSTO

4.99kΩ

10kΩ

10kΩ

51kΩ

10kΩ

8.87kΩ

31.6kΩ

10.2kΩ

10.2kΩ

Si7232DN

(16.4mΩ)

Figure 54. Typical Channel 1/Channel 2 Parallel Output Application, 600 kHz Switching Frequency, Adjustable Output Model