MPF0900AMMA2ES datasheet(80/205 Pages) NXP

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NXP Semiconductors

PF09

Nine-channel power management IC with advanced system safety monitoring

When the output is set as push-pull driver, the PF09 will use the VIN internally to set the high state on the

GPIO3 pin.

The GPIO3 uses the OTP_SEQ_TBASE[1:0] and the OTP_GPO3_SEQ[7:0] bits, to enable the GPO by default

at a specific time slot during the power-up sequence. Refer to section 16.3.3 Regulator Power-up Sequence, for

a detailed description of the Power-up sequence.

The GPIO3 pin is designed to have independent control configuration during the RUN and the STANDBY states,

to allow full control of the GPIO3 when going in and out of the STANDBY state.

In the RUN state, the level of the GPIO3 pin can be controlled manually via the GPIO3_RUN bit.

GPIO3_RUN

GPIO3 state

Low

High

Table 93. GPIO3 state in RUN state

In the STANDBY state, the level of the GPIO3 pin can be controlled manually via the GPIO3_STBY bit.

GPIO3_STBY

GPIO3 state

Low

High

Table 94. GPIO3 state in STANDBY state

12.8.12 GPIO4

The GPIO4 pin is a programmable general-purpose IO with a selectable open-drain or push-pull output buffer.

The GPIO pin is configurable as a general-purpose output (GPO) via the OTP_GPIO4_MODE[1:0] bits.

OTP_GPIO4_MODE[1:0]

GPIO4 mode

Open-drain output

Push-pull output

Reserved

Table 95. GPIO4 mode

The GPIO4_S flag is provided to read the real-time state of the GPIO4 pin.

GPIO4_S

GPIO4 state

Low

High

Table 96. GPIO4_S flag

12.8.12.1 GPO mode

When the GPIO4 is used as a general-purpose output (GPO mode), the pin will be asserted low during the OFF

states. It can be set high by default during the Power-up sequence, or manually during the system-on states.

When the output is set as an open drain, the GPIO4 pin can be pulled up to any voltage lower than VIN with an

external resistor between 10 kΩ and 470 kΩ.

PF09

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 1.3 — 16 December 2025

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