MPF0900AMBA2ES datasheet(114/205 Pages) NXP

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NXP Semiconductors

PF09

Nine-channel power management IC with advanced system safety monitoring

13.2.5 LDO2 / LDO3 (200 mA linear regulators with load switch mode)

LDO2 and LDO3 are low dropout linear regulators with 200 mA current capability and input voltage range from

1.8 V to 5.5 V. Both LDOs feature a programmable output voltage between 0.65 V and 3.3 V with up to 2 %

output voltage accuracy.

Each LDO implements a configurable soft-start ramp control during power up (enable) and discharge

mechanism during power down (disable).

The LDOx_RUN_EN bit is provided to enable or disabled the LDOx output during the RUN state. The

LDOx_RUN_EN bit will be set to 1 by default if the LDO is enabled in the power-up sequence or 0 if it is

disabled at power-up.

LDOx_RUN_EN

LDOx output xontrol

Disabled

Enable

Table 147. LDOx output control in RUN

The LDOx_STBY_EN bit is provided to enable or disable the LDOx output during the STANDBY state, and its

default value is loaded from the OTP_LDOx_STBY_EN at power-up.

LDOx_STBY_EN

LDOx output control

Disabled

Enable

Table 148. LDOx output control in STANDBY

The VLDOx_RUN[4:0] and VLDOx_STBY[4:0] bits are provided to set the output voltage of the LDOx during the

RUN and STANDBY states respectively.

The default values for the VLDOx_RUN[4:0] and VLDOx_STBY[4:0] bits are loaded from the respective OTP

bits (OTP_VLDOx_RUN[4:0] and OTP_VLDOx_STBY[4:0] ) at power up.

LDO output voltage can be changed during RUN mode operation. The maximum voltage step at the transition is

+/-2 V.

VLDOx_RUN[4:0] VLDOx_STBY[4:0]

LDOx output voltage

00000

0.65 V

00001

0.70 V

00010

0.75 V

00011

0.80 V

00100

0.85 V

00101

0.90 V

00110

0.95 V

00111

1.00 V

01000

1.05 V

01001

1.10 V

01010

1.15 V

01011

1.20 V

Table 149. LDOx output voltage selection bits

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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