PMIC Wearable Power Management IC Charger MAX20303

The MAX20303 is a programmable power management IC (PMIC) designed for ultra-low-power wearable applications. It features multiple bucks, boost, buck-boost, and linear regulators to enable your design to achieve optimal power. Each regulator has a low quiescent current (low Iq) of 1µA (typical) which is ideal for long battery life when used with always-on devices and standby/sleep mode. The MAX20303 includes a comprehensive set of battery management solutions such as battery seal, charger, power path, and fuel gauge. Both thermal management and input protection are built into the charger. 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 immersive haptic feedback to the user.

Key Features

• Extend Battery Use Time Between Battery Charging
  • 2 x Micro-Iq Buck Regulators
  • Micro-Iq LV LDO/Load Switch
  • Micro-Iq LDO/Load Switch
  • Micro-IQ Buck-Boost Regulator
• Easy-to-Implement Li+ Battery Charging
• Haptic Driver
• Supports a Wide Variety of Display Options
  • Micro-IQ Boost Regulator (2.4µA IQ(typ))
  • 3 Channel Current Sinks
• Programmable Supply Sequencing
• On-Chip Voltage Monitor Multiplexer and Analog-to-Digital Converter (ADC)
• Factory Shelf Mode
• Programmable Push-Button Controller

Sample Program hosted on MAX32630FTHR, Hello World

Firmware/Software C++ Code Driver Library

Datasheet

• MAX20303 Datasheet
• MAX20303 EvKit Datasheet

Typical Applications Circuit

Where to Buy

• MAX20303
• MAX20303EVKIT Evaluation Board

Application Notes

• Achieve Precision Control Of Vibration For Wearables
• YouTube: Maxim Integrated MAX20303 Wearable Power Management Solution | Featured Product Spotlight

Product Pages

• MAX20303 PMIC chip
• MAX20303 Evaluation Kit
• Mbed enabled MAXREFDES101 Wrist Health Platform