MPF0900AMBA0ES datasheet(92/205 Pages) NXP

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NXP Semiconductors

PF09

Nine-channel power management IC with advanced system safety monitoring

When the VAON is configured in Always-on mode, the regulator output remains enabled all the time, as long as

the VIN supply does not cross the UVDET threshold or the state machine does not enter the DFS state due to

a critical fault condition. In scenarios such as these, the VAON will be enabled again after the new fuse-loading

event when the device experiences a new cold boot or is able to wake up from the DFS state.

13.2.1.2 System regulator mode

When VAON is set as a system regulator, the VAON output will be allowed to turn on only during the SYSTEM

ON states, following the power-up and power-down sequences, as configured via the OTP and functional

registers.

In applications where the VAON block is used as a system regulator, the OTP_VAON[1:0] will be used to set the

default voltage during the Power-up sequence. The VAON, however, can also remain disabled by default, and

the VAON[1:0] functional bits can be used to set the output voltage during the SYSTEM ON state, allowing the

MCU to enable the supply on the go at the required voltage level.

13.2.1.3 Electrical characteristics

All parameters are specified at TA = -40 °C to 125 °C, VIN = 5.0 V, VAON = 1.8 V, IAON = 10 mA and typical external

component values, unless otherwise noted. Typical values are characterized at VIN = 5.0 V, VAON = 1.8 V, IAON = 10 mA, and

Ta = 25 °C, unless otherwise noted.

Symbol

Description

Min

Typ

Max

Unit

VIN_VAON

VAON operating input range

UVDET

–

5.5

IQ_VAON

VAON quiescent current

• Max IQ at TA = 85°C

–

µA

ILIM_VAON

VAON current limit

–

VAON_PSRR_AC

AC power supply rejection ratio

• 400 kHz

• 100 µA < IAON ≤ 10 mA

• VIN = VAON + 300 mV

–

RDSON_VAON

VAON dropout mode resistance

–

Ω

RPD_VAON

VAON discharge pulldown resistor

–

100

Ω

VAON_OS

VAON startup overshoot

–

200

VAON_AC

VAON load transient

IAON_AC: 0 mA to 10 mA

-100

–

100

VAON_TON

VAON turn-on time

• VAON enabled to 90 % of final value

–

1.7

VAON_ACC

VAON output voltage accuracy

-2

–

VAON_LOR

VAON DC load regulation

-1

–

VAON_LIR

VAON DC line regulation

-1

–

IVAON

VAON nominal output current

–

VAON_DROP

VAON LDO minimum headroom

• Minimum headroom to ensure regulation.

200

–

VAON_LP_UV

VAON low-power undervoltage threshold

1.4

1.5

1.6

Table 109. VAON electrical characteristics

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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