MPF0900AMBA2ES datasheet(49/205 Pages) NXP

49 / 205 page

NXP Semiconductors

PF09

Nine-channel power management IC with advanced system safety monitoring

12.6.2.1 Output state control

Switching regulators and LDOs supplied by the PF09 are provided with an _OV_STATE bit to select whether the

regulator is kept enabled or disabled when the corresponding regulator experiences an OV condition.

SWx_OV_STATE, LDOx_OV_STATE

Regulator reaction on OV

Output disabled

Output enabled

Table 43. Regulation reaction on OV condition

Switching regulators and LDOs supplied by the PF09,are provided with an _UV_STATE bit to select whether the

regulator is kept enabled or disabled when the corresponding regulator experience an UV condition.

SWx_UV_STATE LDOx_UV_STATE

Regulator reaction on UV

Output disabled

Output enabled

Table 44. Regulation reaction on UV condition

By default the _OV_STATE and _UV_STATE bits are set to 1, and the MCU is expected to configure the

reaction of each specific supply during the system configuration sequence, during the booting stage.

The table below lists all the functional bits associated with enabling/disabling the voltage regulators when they

experience an OV/UV condition.

Regulator

Bit to disable the regulator during undervoltage

Bit to disable the regulator

during overvoltage

SW1

SW1_UV_STATE

SW1_OV_STATE

SW2

SW2_UV_STATE

SW2_OV_STATE

SW3

SW3_UV_STATE

SW3_OV_STATE

SW4

SW4_UV_STATE

SW4_OV_STATE

SW5

SW5_UV_STATE

SW5_OV_STATE

LDO1

LDO1_UV_STATE

LDO1_OV_STATE

LDO2

LDO2_UV_STATE

LDO2_OV_STATE

LDO3

LDO3_UV_STATE

LDO3_OV_STATE

VAON

VAON_UV_STATE[1]

VAON_OV_STATE[1]

Table 45. Bits used to disable regulator during UV or OV

[1]

The _STATE bits for the VAON are only applicable when the VAON is working as a system regulator. (not valid in Always-on mode)

When a regulator is programmed to be disabled upon an OV or UV, a _FLT_REN bit is provided to decide

whether a regulator can return to its previous configuration or remain disabled after it has been disabled due to

an OV or UV condition.

SWx_FLT_REN LDOx_FLT_REN

Output re-enable

Output remains disabled

Output enabled

Table 46. Output re-enable

PF09

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

Product data sheet

Rev. 1.3 — 16 December 2025

Document feedback

49 / 205

MPF0900AMBA2ES датащи(PDF) 49 Page - NXP Semiconductors

MPF0900AMBA2ES датащи(HTML) 49 Page - NXP Semiconductors

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

датащи скачать

ссылки URL