MAX20303
PMIC with Ultra Low IQ Voltage Regulators, Battery Charger and Fuel Gauge
for Small Lithium Ion Systems
Extend Battery Life of Wearable Electronics
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Overview
Features and Benefits
- 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
- 2 x Micro-IQ Buck Regulators (<1µA IQ (typ) Each)
- 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
- 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
- Micro-IQ Boost Regulator (2.4µA IQ(typ))
- 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)
Product Details
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.
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Applications
- IoT
- Wearable Devices
Product Categories
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (2)
Documentation & Resources
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UG-6780: MAXREFDES101# Health Sensor Platform 2.0 User Guide9/24/2018PDF2M
Reference Designs (3)
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
PCN-PDN Information
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Evaluation Boards
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Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.