Data Sheet

ADP5052

Rev. 0 | Page 9 of 40

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

1

2

3

PVIN1

PVIN1

SW1

4

SW1

5

BST1

6

DL1

7

PGND

TOP

VIEW

(Not to Scale)

ADP5052

25

BST4

26

PGND4

27

SW4

28

PVIN4

29

PVIN5

30

VOUT5

31

FB5

32

EN5

33

PVIN3

34

SW3

35

PGND3

36

BST3

NOTES

1. THE EXPOSED PAD MUST BE CONNECTED AND

SOLDERED TO AN EXTERNAL GROUND PLANE.

8

DL2

9

BST2

10

SW2

11

SW2

12

PVIN2

Figure 3. Pin Configuration

Table 6. Pin Function Descriptions

Pin No.

Mnemonic

Description

1

BST3

High-Side FET Driver Power Supply for Channel 3.

2

PGND3

Power Ground for Channel 3.

3

SW3

Switching Node Output for Channel 3.

4

PVIN3

Power Input for Channel 3. Connect a bypass capacitor between this pin and ground.

5

EN5

Enable Input for Channel 5. An external resistor divider can be used to set the turn-on threshold.

6

FB5

Feedback Sensing Input for Channel 5.

7

VOUT5

Power Output for Channel 5.

8

PVIN5

Power Input for Channel 5. Connect a bypass capacitor between this pin and ground.

9

PVIN4

Power Input for Channel 4. Connect a bypass capacitor between this pin and ground.

10

SW4

Switching Node Output for Channel 4.

11

PGND4

Power Ground for Channel 4.

12

BST4

High-Side FET Driver Power Supply for Channel 4.

13

GND

This pin is for internal test purposes. Connect this pin to ground.

14

EN4

Enable Input for Channel 4. An external resistor divider can be used to set the turn-on threshold.

15

COMP4

Error Amplifier Output for Channel 4. Connect an RC network from this pin to ground.

16

FB4

Feedback Sensing Input for Channel 4.

17, 18, 19

GND

These pins are for internal test purposes. Connect these pins to ground.

20

PWRGD

Power-Good Signal Output. This open-drain output is the power-good signal for the selected channels.

21

FB2

Feedback Sensing Input for Channel 2.

22

COMP2

Error Amplifier Output for Channel 2. Connect an RC network from this pin to ground.

23

EN2

Enable Input for Channel 2. An external resistor divider can be used to set the turn-on threshold.

24, 25

PVIN2

Power Input for Channel 2. Connect a bypass capacitor between this pin and ground.

26, 27

SW2

Switching Node Output for Channel 2.

28

BST2

High-Side FET Driver Power Supply for Channel 2.

29

DL2

Low-Side FET Gate Driver for Channel 2. Connect a resistor from this pin to ground to program the current-limit

threshold for Channel 2.

30

PGND

Power Ground for Channel 1 and Channel 2.

31

DL1

Low-Side FET Gate Driver for Channel 1. Connect a resistor from this pin to ground to program the current-limit

threshold for Channel 1.

32

BST1

High-Side FET Driver Power Supply for Channel 1.