ADP2323

Data Sheet

Rev. A | Page 8 of 32

Pin No.

Mnemonic

Description

23

BST1

Supply Rail for the Gate Drive of Channel 1. Place a 0.1 µF capacitor between SW1 and BST1.

24, 25

SW1

Switch Node for Channel 1.

26, 27

PVIN1

Power Input for Channel 1. This pin is the power input for Channel 1 and provides power for the internal

regulator. Connect to the input power source and connect a bypass capacitor between PVIN1 and ground.

28

EN1

Enable Pin for Channel 1. An external resistor divider can be used to set the turn-on threshold. When not

using the enable pin, connect the EN1 pin to PVIN1.

29

TRK1

Tracking Input for Channel 1. To track a master voltage, drive this pin from a voltage divider from the master

voltage. If the tracking function is not used, connect TRK1 to INTVCC.

30

SS1

Soft Start Control for Channel 1. To program the soft start time, connect a capacitor from SS1 to GND.

31

COMP1

Error Amplifier Output for Channel 1. Connect an RC network from COMP1 to GND. Connect COMP1 and

COMP2 together for a parallel application.

32

FB1

Feedback Voltage Sense Input for Channel 1. Connect to a resistor divider from the Channel 1 output voltage,

V

Exposed Pad

Solder the exposed pad to an external GND plane.