ACT88430 datasheet(55/74 Pages) QORVO

55 / 74 page

Data Sheet Rev. G, August 2021 | Subject to change without notice

55 of 74

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ACT88430

Advanced PMU for Microcontrollers and Solid State Drive Applications

Startup

VIN

LDO1

LDO2

Buck1

Buck4

Buck3

nRESET_AUX1

Buck2

713us

513us

713us

2ms

CMI 106 Startup

SLEEP Mode

Pull PWREN high to operate in ACTIVE mode. Pull PWREN low to operate in SLEEP. Outputs Buck1/3/4 are on in

ACTIVE mode and off in SLEEP mode.

DVS Mode

PWREN is the DVS control input for Buck2. When PWREN = L, the VSET0 register controls the Buck2 converter output

voltage to 1.15V. When PWREN = H the VSET1 register controls the Buck2 converter output voltage to 1.15V. Note

that the default VSET0 and VSET1 settings are the same for Buck2 converter. These can be changed via I2C after

startup.

EXT_PG is the DVS control input for Buck3. When EXT_PG = L, the VSET0 register controls the Buck3 converter

output voltage to 1.5V. When EXT_PG = H the VSET1 register controls the Buck3 converter output voltage to 1.35V.

GPIO is the DVS control input for Buck4. When EXT_PG = L, the VSET1 register controls the Buck4 converter output

voltage to 1.8V. When GPIO = H the VSET0 register controls the Buck4 converter output voltage to 1.2V.

POK Thresholds

POK_UV = 2.7V

POK_OV = 3.6V

The PG pin is not functional with CMI 106. Leave the PG pin floating.

POK

The POK pin is not functional with CMI 106. Leave the POK pin floating.

EXT_EN

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