Datasheet

ADP322/ADP323 Data Sheet
Rev. A | Page 6 of 24
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
12
11
10
1
3
4
GND
NC
VIN3
9NC
EN1
VIN1/VIN2
2
VBIAS
NC
6
VOUT2
5
VOUT1
7
NC
8
VOUT3
16
EN2
15
EN3
14
NC
13
NC
TOP VIEW
(Not to Scale)
ADP322
NOTES
1. NC = NO CONNE
C
T.
2
. CONNECT EXPOSED PAD TO GROUND PLANE.
09288-002
Figure 3. ADP322 Pin Configuration
Table 5. ADP322 Pin Function Descriptions
Pin No. Mnemonic Description
1 EN1
Enable Input for Regulator 1. Drive EN1 high to turn on Regulator 1; drive it low to turn off Regulator 1. For
automatic startup, connect EN1 to VBIAS.
2 VBIAS Input Voltage Bias Supply. Bypass VBIAS to GND with a 1 μF or greater capacitor.
3 VIN1/VIN2
Regulator Input Supply for Output Voltage 1 and Output Voltage 2. Bypass VIN1/VIN2 to GND with a 1 μF or
greater capacitor.
4 NC Not connected internally.
5 VOUT1 Regulated Output Voltage 1. Connect a 1 μF or greater output capacitor between VOUT1 and GND.
6 VOUT2 Regulated Output Voltage 2. Connect a 1 μF or greater output capacitor between VOUT2 and GND.
7 NC Not connected internally.
8 VOUT3 Regulated Output Voltage 3. Connect a 1 μF or greater output capacitor between VOUT3 and GND.
9 NC Not connected internally.
10 VIN3 Regulator Input Supply for Output Voltage 3. Bypass VIN3 to GND with a 1 μF or greater capacitor.
11 NC Not connected internally.
12 GND Ground Pin.
13 NC Not connected internally.
14 NC Not connected internally.
15 EN3
Enable Input for Regulator 3. Drive EN3 high to turn on Regulator 3; drive it low to turn off Regulator 3. For
automatic startup, connect EN3 to VBIAS.
16 EN2
Enable Input for Regulator 2. Drive EN3 high to turn on Regulator 2; drive it low to turn off Regulator 2. For
automatic startup, connect EN2 to VBIAS.
EP Exposed pad for enhanced thermal performance. Connect to copper ground plane.