PMIC for Low Power Applications

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Product Details

Block Diagram

PCA9420 Block diagram

PCA9420 Block diagram

Features

General Features

  • Optimized for low-power applications
  • Typical 100 nA quiescent current in ship mode
  • Small total solution size
  • Built-in “Mode” configuration to accommodate fast mode switch supporting different MCU operation modes

Battery Charger

  • Linear battery charger for charging single-cell Li-ion battery
  • 20 V tolerance on VIN pin
  • Programmable constant current (up to 315 mA) and precharge low voltage current threshold
  • Programmable constant voltage regulation
  • Built-in protection features such as input OVP, battery SCP, thermal protection
  • JEITA compliant
  • Battery attached detection

Temperature

  • Over-temperature protection
  • -40 °C ~ +85 °C ambient temperature range

DC-DC (Buck) Converters

  • Programmable output voltage
  • SW1: core buck converter, 0.5 V ~ 1.5 V output, 25 mV/step and a fixed 1.8 V, up to 250 mA
  • SW2: system buck converter, 1.5 V ~ 2.1 V/2.7 V ~ 3.3 V output, 25 mV/step, up to 500 mA
  • Low-power mode for extra power saving

LDOs

  • Programmable output voltage regulation
  • LDO1: always-on LDO, 1.70 V ~ 1.90 V output, 25 mV/step, up to 1 mA
  • LDO2: system LDO, 1.5 V ~ 2.1 V/2.7 V ~ 3.3 V output, 25 mV/step, up to 250 mA

Interface

  • 1 MHz I2C-bus target interface

Package

  • 2.09 mm x 2.09 mm, 5 x 5 bump, 0.4 mm pitch WLCSP
  • 3 mm x 3 mm, 24-pin QFN

Key Parametrics

  • MCU Supported
    i.MX RT
  • Output Current (A)
    0.5
  • Number of Buck Regulators
    2
  • Number of LDO
    2
  • Interface and Input Control
    I2C

Design Resources

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Documentation

Quick reference to our documentation types.

5 documents

Hardware

3 hardware offerings

Training

2 trainings

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