ACT88430 datasheet(62/74 Pages) QORVO

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

62 of 74

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ACT88430

Advanced PMU for Microcontrollers and Solid State Drive Applications

nRESET_AUX1

The nRESET_AUX1 pin is programmed as an open drain output. It goes high 1989us after LDO1 goes into regulation.

nRESET_AUX2

The nRESET pin is not used and should be pulled to GND.

EXT_PG

EXT_PG is configured as an input to select the Buck1 output voltage. When EXT_PG is L, VSET0 sets Buck1 to 3.0V.

When EXT_PG is H, VSET1 sets Buck1 to 2.5V.

MODE

The MODE pin configures Buck1 into either bypass or switcher mode. MODE must be connected to AGND to

configure Buck1 into switcher mode.

GPIO

GPIO is configured as an input to select the Buck2 output voltage. When GPIO is H, VSET0 sets Buck2 to 0.8V. When

GPIO is L, VSET1 sets Buck2 to 0.9V.

PWREN

PWREN is configured as an input. When PWREN = H, the IC operates in Active Mode. When PWREN = L, the IC

operates in SLEEP Mode.

Buck1/3 Voltage Setting

Buck1/3 reference voltage is 0.8V. This sets the programmable voltage range between 0.8V to 3.998V in 12.5mV

steps.

Buck2 Voltage Setting

Buck2 reference voltage is 0.6V. This sets the programmable voltage range between 0.6V to 3.000V in 9.375mV

steps.

LDO1 Voltage Setting

The LDO1 reference voltage is 0.8V. This sets the programmable voltage range between 2.0V to 3.575V in 25mV

steps.

LDO2/3 Voltage Setting

The LDO2/3 reference voltage is 0.8V. This sets the allowable voltage range between 2.0V to 3.575V in 25mV steps.

Device ID

The CMI 113 Device ID (register 0x7Dh) = 0x13h

I2C Address

The CMI 113 7-bit I2C address is 0x53h. This results in 0xA6h for a write address and 0xA7h for a read address.

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