ACT8846
Rev 4, 25-May-16
PIN DESCRIPTIONS
PIN
1, 2
3
NAME
DESCRIPTION
SW3
Switch Node for REG3.
Power Ground for REG3. Connect GP14, GP2, GP3, and GA together at a single
point as close to the IC as possible.
GP3
4
OUT10
OUT11
INL3
REG10 output. Bypass it to ground with a 2.2µF capacitor.
REG11 output. Bypass it to ground with a 2.2µF capacitor.
Power input for REG10, REG11 and REG12.
5
6
7
OUT12
REG12 output. Bypass it to ground with a 2.2µF capacitor.
Output Voltage Selection for REG2. Drive to logic low to select default output voltage.
Drive to logic high to select secondary output voltage.
8
9
VSELR2
Active-Low Open-Drain Push-Button Status Output. nPBSTAT is asserted low
whenever the nPBIN is pushed, and is high-Z otherwise.
nPBSTAT
Power ground for REG2. Connect GP14, GP2, GP3, and GA together at a single
point as close to the IC as possible.
10
GP2
SW2
VP2
11, 12
13, 14
15
Switch Node for REG2.
Power input for REG2. Bypass to GP2 with a high quality ceramic capacitor placed as
close to the IC as possible.
OUT2
Output Voltage Sense for REG2.
Power Enable Input for REG3. PWREN is functional only when PWRHLD is driven
high. Drive PWREN to a logic high to turn on the REG3. Drive PWREN to a logic low
to turn off the REG3.
16
PWREN
Reference Bypass. Connect a 0.047μF ceramic capacitor from REFBP to GA. This
pin is discharged to GA in shutdown.
17
18
19
20
21
22
23
24
25
REFBP
INL2
OUT9
GA
Power Input for REG8, REG9.
REG9 output. Bypass it to ground with a 2.2µF capacitor.
Analog Ground.
OUT4
OUT8
SDA
Output voltage sense for REG4.
REG8 output. Bypass it to ground with a 2.2µF capacitor.
Data Input for I2C Serial Interface. Data is read on the rising edge of SCL.
Clock Input for I2C Serial Interface.
SCL
Power input for REG4. Bypass to GP14 with a high quality ceramic capacitor placed
as close to the IC as possible.
VP4
Innovative PowerTM
- 5 -
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ActivePMUTM is a trademark of Active-Semi.
Copyright © 2016 Active-Semi, Inc.
I2CTM is a trademark of NXP.
ACTIVE-SEMI [ ACTIVE-SEMI, INC ]
