MAX20303

PRODUCTION

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

Extend Battery Life of Wearable Electronics

Part Details

  • 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)
MAX20303
PMIC with Ultra Low IQ Voltage Regulators, Battery Charger and Fuel Gauge for Small Lithium Ion Systems
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Documentation

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Hardware Ecosystem

Parts Product Life Cycle Description
Battery Charger ICs 3
MAX14745 PRODUCTION PMIC with Ultra Low IQ Voltage Regulators and Battery Charger for Small Lithium Ion Systems
MAX14690 PRODUCTION PMIC with Ultra-Low IQ Voltage Regulators and Battery Charger for Small Lithium Ion Systems
MAX14676 PRODUCTION Wearable Charge Management Solution
Switching Regulators & Controllers 2
MAX14750 PRODUCTION Power-Management Solution
MAX20310 RECOMMENDED FOR NEW DESIGNS Ultra-Low Quiescent Current PMIC with SIMO Buck-Boost for Wearable Applications
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Evaluation Kits

eval board
MAX20303EVSYS

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 Details

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

Features and Benefits

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

Product Details

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

MAX20303EVSYS
Evaluation Kit for the MAX20303
MAX20303EVKIT
Evaluation Kit for the MAX20303

Reference Designs

MAXREFDES101
MAXREFDES101 Circuits from the lab

Health Sensor Platform 2.0

Features and Benefits

  • Photoplethysmography (PPG)
  • Biopotential measurement (ECG)
  • Skin temperature
  • Embedded heart-rate algorithm
  • Motion and rotation
  • Wearable watch form factor
maxrefdes 105 photo 1
MAXREFDES105 Circuits from the lab

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
MAXREFDES103# system diagram
MAXREFDES103 Circuits from the lab

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

Part Used


Design & Integration Tools


Videos

  • lazy blur
    VIDEO · 2022-10-04 01:45
    How to Get Your Healthcare Wearable Off the Ground Faster
MAXREFDES101
Health Sensor Platform 2.0
MAXREFDES105
Wrist-Based SpO2, Heart Rate (HR), and Heart Rate Variability (HRV) Health Sensor Platform
MAXREFDES103
Wrist-Based SpO2, HR, and HRV Health Sensor Platform

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