Datasheet

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
24PVIN2
23EN2
22COMP2
21FB2
20PWRGD
19GND
18GND
17GND
16FB4
15COMP4
14EN4
13GND
44
VREG
45
FB3
46
COMP3
47
SS34
48
EN3
43
SYNC/MODE
42
VDD
41
RT
40
FB1
39
COMP1
38
SS12
37
EN1
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
10900-002
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.