MAX20303
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MAX20303

PMIC with Ultra Low IQ Voltage Regulators, Battery Charger and Fuel Gauge for Small Lithium Ion Systems

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Extend Battery Life of Wearable Electronics

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Part Details
Part Models 22
1ku List Price Starting From $5.83
Features
  • Extend Battery Use Time Between Battery Charging
    • 2 x Micro-IQ Buck Regulators (<1µA IQ (typ) Each)
      • 220mA Output
      • Buck1: 0.8V to 2.375V in 25mV Steps
      • Buck2: 0.8V to 3.95V in 50mV Steps
    • Micro-IQ LV LDO/Load Switch (1µA IQ (typ))
      • 1.16V to 2.0V Input Voltage
      • 50mA Output
      • 0.5V to 1.95V Output, 25mV Steps
    • Micro-IQ LDO/Load Switch (1µA IQ (typ))
      • 1.71V to 5.5V Input Voltage
      • 100mA Output
      • 0.9V to 4V, 100mV Steps
    • Micro-IQ Buck-Boost Regulator (1.3µA IQ (typ))
      • 250mW Output
      • 2.5V to 5V in 100mV Steps
  • Easy-to-Implement Li+ Battery Charging
    • Wide Fast Charge Current Range: 5mA to 500mA
    • Smart Power Selector
      • 28V/-5.5V Tolerant Input
      • Programmable JEITA Current/Voltage Profiles
  • Minimize Solution Footprint Through High Integration
    • Safe Output LDO
      • 15mA When CHGIN Present
      • 5V or 3.3V
    • Haptic Driver
      • ERM/LRA Driver with Quick Start And Breaking
      • Automatic Resonance Tracking (LRA only)
    • Support Wide Variety of Display Options
      • Micro-IQ Boost Regulator (2.4µA IQ(typ))
        • 300mW Output
        • 5V to 20V in 250mV Step
      • 3 Channel Current Sinks
        • 20V Tolerant
        • Programmable from 0.6 to 30mA
    • Optimize System Control
      • Power-On/Reset Controller
      • Programmable Push-Button Controller
      • Programmable Supply Sequencing
      • Factory Shelf Mode
      • On-Chip Voltage Monitor Multiplexer and Analog-to-Digital Converter (ADC)
Additional Details
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The MAX20303 is a highly integrated and programmable power management solution designed for ultra-low-power wearable applications. It is optimized for size and efficiency to enhance the value of the end product by extending battery life and shrinking the overall solution size. A flexible set of power-optimized voltage regulators, including multiple bucks, boost, buck-boost, and linear regulators, provides a high level of integration and the ability to create a fully optimized power architecture. The quiescent current of each regulator is specifically suited for 1µA (typ) to extend battery life in always-on applications.

The MAX20303 includes a complete battery management solution with battery seal, charger, power path, and fuel gauge. Both thermal management and input protection are built into the charger.

The device also includes a factory programmable button controller with multiple inputs that are customizable to fit specific product UX requirements.

Three integrated LED current sinks are included for indicator or backlighting functions, and an ERM/LRA driver with automatic resonance tracking is capable of providing sophisticated haptic feedback to the user.

The device is configurable through an I2C interface that allows for programming various functions and reading device status, including the ability to read temperature and supply voltages with the integrated ADC.

This device is available in a 56-bump, 0.5mm pitch 3.71mm x 4.21mm, wafer-level package (WLP) and operates over the -40°C to +85°C extended temperature range.

Applications

  • IoT
  • Wearable Devices
Part Models 22
1ku List Price Starting From $5.83

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Documentation

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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 2

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MAX20303EVSYS

Evaluation Kit for the MAX20303

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MAX20303EVSYS

Evaluation Kit for the MAX20303

Evaluation Kit for the MAX20303

Features and Benefits

  • USB Power Option
  • Flexible Configuration
  • On-Board LED Current Sink and Battery Simulation
  • Sense Test Point for Output-Voltage Measurement
  • Filter Test Point for Haptic Waveform Measurement
  • Windows® 8/10-Compatible GUI Software
  • Fully Assembled and Tested

Product Detail

The MAX20303 evaluation system (EV system) is a fully assembled and tested circuit board that demonstrates the MAX20303 ultra-low-power wearable power-management integrated circuit (PMIC). The MAX20303 includes voltage regulators such as bucks, boost, buck-boost and linear regulators, and a complete battery management solution with battery seal, charger, power path and fuel gauge.

The MAX20303 EV system comes with the MAX20303 board, the MAXPICO2PMB# board, and two micro-B cables. The EV system comes with the MAX20303BEWN+ installed. The MAX20303 is configurable through an I2C interface that allows for programming various functions and reading the device status. The EV system GUI application sends commands to the MAXPICO2PMB# adapter board to configure the device.

Applications

  • IoT
  • Wearable Devices

MAX20303EVKIT

Evaluation Kit for the MAX20303

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MAX20303EVKIT

Evaluation Kit for the MAX20303

Evaluation Kit for the MAX20303

Features and Benefits

  • RoHS Compliant
  • Proven PCB Layout
  • Fully Assembled and Tested
  • I2C Serial Interface

Product Detail

The MAX20303 evaluation kit (EV kit) is a fully assembled and tested circuit for evaluating the MAX20303 wearable charge-management solution with I2C compatibility for feature-rich, low-power wearable applications. The device includes a linear battery charger, smart power selector, two ultra-low quiescent current buck regulators, a buckboost regulator, a boost regulator, a charge pump, two low-dropout (LDO) linear regulators, three LED current sinks, five GPIO pins, and an LRA/ERM compatible haptic driver with internal pattern storage.

Refer to the MAX20303 IC data sheet for detailed information regarding the operation and features of the device.

Applications

  • IoT
  • Wearable Devices
Reference Designs

Reference Designs 3

MAXREFDES101

Health Sensor Platform 2.0

MAXREFDES103# system diagram

Wrist-Based SpO2, HR, and HRV Health Sensor Platform

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MAXREFDES103

Wrist-Based SpO2, HR, and HRV Health Sensor Platform

Wrist-Based SpO2, HR, and HRV Health Sensor Platform

Features and Benefits

  • Photoplethysmography (PPG)
  • Wrist-based embedded heart rate, blood oxygen saturation (SpO2) algorithm
  • Heart rate variability (HRV), respiration rate, sleep quality library algorithm
  • Wearable health band form factor
  • MAX32664 sensor hub
  • MAX86141 PPG analog front-end
  • 3-axis accelerometer
  • Windows® and Android GUIs
View Detailed Reference Design external link

Design & Integration Tools

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Videos

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Oct 04, 2022

01:45

How to Get Your Healthcare Wearable Off the Ground Faster

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Wrist-Based SpO2, Heart Rate (HR), and Heart Rate Variability (HRV) Health Sensor Platform

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MAXREFDES105

Wrist-Based SpO2, Heart Rate (HR), and Heart Rate Variability (HRV) Health Sensor Platform

Wrist-Based SpO2, Heart Rate (HR), and Heart Rate Variability (HRV) Health Sensor Platform

Features and Benefits

Features

  • PPG
  • Wrist-based embedded heart rate, blood oxygen saturation (SpO2) algorithm
  • HRV, respiration rate, sleep quality library algorithm
  • Wearable health band form factor
  • MAX32664 sensor hub
  • MAX86174A PPG analog front-end
  • 3-axis accelerometer
  • Windows® and Android GUIs

Applications

  • Remote Patient Monitoring/Vital Sign Patch
View Detailed Reference Design external link

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