PCA9420 datasheet(54/87 Pages) NXP

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NXP Semiconductors

PCA9420

Power management IC for low-power microcontroller applications

00011=1.575 V

01100=1.800 V

(default)

10101=2.025 V

00100=1.600 V

01101=1.825 V

10110=2.050 V

00101=1.625 V

01110=1.850 V

10111=2.075 V

00110=1.650 V

01111=1.875 V

11000=2.100 V

00111=1.675 V

10000=1.900 V

11001-11111=2.1 V

01000=1.700 V

10001=1.925 V

Table 59. LDO2 default output voltage for mode setting 1...continued

9.5.36 Mode configuration mode setting 2_0 (MODECFG_2_0, address 2Ah)

This register contains mode setting 2, part 0 configuration register. This is a READ AND

WRITE register.

Bit

Symbol

Default value Type

Function

SHIP_EN_2

R/W

Ship mode enable/disable in mode setting 2

0: Device is NOT set in ship mode

1: Device is set in ship mode

EN_MODE_

SEL_BY_PIN_2

R/W

MODESEL0/MODESEL1 Control Selection in mode setting 2

0: mode control by internal I2C register bits, MODE0_I2C and/or

MODE1_I2C only; signal applied on external MODESEL0/MODESEL1

pins is ignored.

1: mode control by signal applied on external MODESEL0 and/or

MODESEL1 pins only, not by internal I2C register bits, MODE0_I2C

and MODE1_I2C

SW1_OUT_2

[5:0]

011100

R/W

SW1 output voltage for mode setting 2 (see below).

Table 60. MODECFG_2_0 register bit description

000000=0.500 V

001110=0.850 V

011100=1.200 V

(default)

000001=0.525 V

001111=0.875 V

011101=1.225 V

000010=0.550 V

010000=0.900 V

011110=1.250 V

000011=0.575 V

010001=0.925 V

011111=1.275 V

000100=0.600 V

010010=0.950 V

100000=1.300 V

000101=0.625 V

010011=0.975 V

100001=1.325 V

000110=0.650 V

010100=1.000 V

100010=1.350 V

000111=0.675 V

010101=1.025 V

100011=1.375 V

001000=0.700 V

010110=1.050 V

100100=1.400 V

Table 61. SW1 output voltage for Mode Setting 2

PCA9420

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

Product data sheet

Rev. 4.0 — 28 November 2022

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