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ADP2323
Data Sheet
Pin No.
23
24, 25
26, 27
28
29
30
31
32
Mnemonic
BST1
SW1
PVIN1
EN1
TRK1
SS1
COMP1
FB1
Exposed Pad
Description
Supply Rail for the Gate Drive of Channel 1. Place a 0.1 μF capacitor between SW1 and BST1.
Switch Node for Channel 1.
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.
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.
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.
Soft Start Control for Channel 1. To program the soft start time, connect a capacitor from SS1 to GND.
Error Amplifier Output for Channel 1. Connect an RC network from COMP1 to GND. Connect COMP1 and
COMP2 together for a parallel application.
Feedback Voltage Sense Input for Channel 1. Connect to a resistor divider from the Channel 1 output voltage,
V OUT1 .
Solder the exposed pad to an external GND plane.
Rev. A | Page 8 of 32
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