RT5133A

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DS5133A-00

March

2022

16

VDDA(APR)

VDDA

LDO1/2

LDO3

LDO4/5

VDDA

(APR & CTRL)

LDO6

LDO7

LDO8

PVIN7

PVIN12

PVIN8

PVIN3

PVIN45

PVIN6

Figure 2. VDDA Power Plan

Interrupt

The RT5133A reports status to host (CPU, MCU, EC, or etc.) by the IRQB (interrupt command to host) pin, which is

an open-drain output. The IRQB pin goes low when any fault occurs. It will be automatically reset when all the fault

events are cleared.

The IRQB pin is used to indicate whether the RT5133A has any events. If an application processor (AP) detects a

falling edge on the IRQB pin, the AP will start to read the IRQB registers 0x10 through 0x12 sequentially.

STAT#

EVT#

Write Clear

IRQB

INT_RETRIGGER

INT_RET

16/32/64/128µs

Figure 3. IRQB Pin Diagram