ACT88430QJ-T
Rev 1.0, 24-Oct-2018
PIN DESCRIPTIONS
PIN
NAME
DESCRIPTION
1
2,3
4
IRQ
PGND1
Interrupt IRQ Open Drain Output indicates a fault occurred.
Dedicated Power Ground for BUCK1 Regulator.
POK
Power OK Open Drain Output, indicates Overvoltage or Undervoltage on VIN input supply.
Dedicated Power Ground for Buck 2 Regulator.
5
PGND2
6
SW_B2
Switch Pin for BUCK2 Regulator.
7
VIN_B2
Dedicated VIN power input for BUCK2 Regulator.
8
FB_B2
Feedback for BUCK2 Regulator. Connect to the BUCK2 output.
Output for LDO1 Regulator (Leave unconnected if LDO1 is not used and disabled).
Dedicated VIN power input for LDO1 Regulator.
9
OUT_LDO1
VIN_LDO1
nRESET_AUX2
nRESET_AUX1
SCL
10
11
12
13
14
15
16
17
18
19
20
A configurable auxiliary reset signal. Open Drain Output (configurable as an input).
A configurable auxiliary reset signal. Open Drain Output (configurable as an input).
I2C Clock Input.
nRESET
SDA
nRESET Open Drain Output. This pin is configurable.
I2C Data Input and Output.
AGND
Analog Ground.
PWREN
EXT_EN
EXT_PG
VIO_IN
Power Enable Digital Input. This pin is configurable.
External Regulator Enable Push-Pull Digital Output.
External Power Good Digital Input. This pin is configurable.
Digital Input Reference Voltage Input. Connect a 0.1uF ceramic capacitor between VIN_IN and AGND
21
OUT_LDO2
Output for LDO2 Regulator (Leave unconnected if LDO2 is not used and disabled).
22
VIN_LDO23
OUT_LDO3
FB_B3
VIN_B3
SW_B3
PGND3
PGND4
FB_B4
MODE
SW_B4
VIN_B4
GPIO
Dedicated VIN power input for LDO2 and LDO3 Regulator.
Output for LDO3 Regulator (Leave unconnected if LDO3 is not used and disabled).
Feedback for BUCK3 Regulator. Connect to the BUCK3 output.
Dedicated VIN power input for BUCK3 Regulator.
Switch Pin for BUCK3 Regulator.
23
24
25
26
27
Dedicated Power Ground for BUCK3 Regulator.
28
Dedicated Power Ground for BUCK4 Regulator.
29
Feedback for BUCK4 Regulator. Connect to the BUCK4 output.
Configuration input pin. This pin is read at power up to configure BUCK1.
Switch Pin for BUCK4 Regulator.
30
31
32
Dedicated VIN power input for BUCK4 Regulator.
Configurable General purpose input/open drain output.
Power Good Output. This pin is configurable. Open Drain Output.
Feedback for BUCK1 Regulator. Connect to the BUCK1 output.
Analog Input supply monitored by POK thresholds.
Dedicated VIN power input for BUCK1 Regulator.
Switch pin for BUCK1 Regulator.
33
34
PG
35
FB_B1
VIN
36
37,38
39,40
Exposed Pad
VIN_B1
SW_B1
Tie to Ground Plane for best performance
Innovative PowerTM
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Copyright © 2016-2018 Active-Semi, Inc.
ActiveSwitcherTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP
6
ACTIVE-SEMI [ ACTIVE-SEMI, INC ]
