MPF0900AMBA2ES datasheet(98/205 Pages) NXP

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NXP Semiconductors

PF09

Nine-channel power management IC with advanced system safety monitoring

The SW1LS_OCP bit is provided to set the reaction of the SW1LS output when an overcurrent condition is

present. The default value of the SW1LS_OCP bit is set in OTP via the OTP_SW1LS_OCP bit.

SW1LS_OCP

SW1LS overcurrent protection

Interrupt only

SW1LS OFF

Table 123. SW1LS overcurrent protection bit

When the SW1LS_OCP = 0, an OCP condition will set the SW1LS_OCP_I interrupt only without disabling the

output voltage.

When the SW1LS_OCP = 1, an OCP condition will set the SW1LS_OCP_I interrupt and disable the SW1LS

output immediately.

The SW1LS_OCP_I interrupt will assert the INTB pin if the interrupt is not masked.

Once the OCP mechanism has disabled the SW1LS output, the system will be able to recover the output by

clearing the SW1LS_OCP_I bit.

13.2.2.2 Electrical characteristics

All parameters are specified at TA = -40 °C to 125 °C, VSW1IN = VIN = UVDET to 5.5 V, VSW1FB = 3.3 V, ISW1 = 1 A, typical

external component values, fSW = 2.5 MHz, unless otherwise noted. Typical values are characterized at VSW1IN = 5.0 V,

VSW1FB = 3.3 V, ISW1 = 1000 mA, and Ta = 25 °C, unless otherwise noted.

Symbol

Description

Min

Typ

Max

Unit

VSW1IN

Operating input range[1]

• Minimum headroom = VSW1FB + IOUT_MAX * RON / DC.

• IOUT_MAX = minimum ILIM selected for SW1

• RON includes HS FET RDSON, bond wire resistance, PCB trace

resistance and inductor DCR.

• Maximum duty cycle = 100%

UVDET

–

5.5

fSW

Operating switching frequency

1.9

–

3.15

MHz

VSW1ACC3

Output voltage accuracy

• PWM mode

• 0.5V ≤ VSW1FB < 0.8V

-10

–

VSW1ACC1

Output voltage accuracy

• PWM mode

• 0.8V ≤ VSW1FB < 1.35V

-1.5

–

1.5

VSW1ACC2

Output voltage accuracy

• PWM Mode

• 1.5V ≤ VSW1FB ≤ 3.3V

-1.5

–

1.5

VSW1PFMACC3

Output voltage accuracy

• PFM mode

• 0.5V ≤ VSW1FB < 0.8 V

-20

–

VSW1PFMACC1

Output voltage accuracy

• PFM mode

• 0.8V ≤ VSW1FB < 1.35 V

-3

–

VSW1PFMACC2 Output voltage accuracy

• PFM Mode

-3

–

Table 124. SW1 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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