MAX20303CEWN+T

Overview

The MAX20303CEWN+T is a highly integrated, programmable power management IC designed for ultra-low-power wearable applications. It features two micro-IQ buck regulators, two LDOs/load switches, a boost converter, and a buck-boost regulator, all with typical quiescent currents of 1μA. The device includes a Li-ion battery charger with 5mA to 500mA programmable current, fuel gauge, and ERM/LRA tactile drivers. It operates from a wide input voltage range and supports I2C control for system optimization.

Feature Summary

• Ultra-low quiescent current regulators (typical 1μA) extend battery life in always-on applications
• Integrated Li-ion battery charger with programmable current and smart power path selection
• Highly compact WLP package minimizes solution footprint for space-constrained wearables
• Built-in tactile driver with automatic resonance tracking for haptic feedback

Applications

• Smartwatches and fitness trackers
• Health monitoring sensors
• Low-power IoT devices
• Wearable audio accessories

Procurement Notes

Verify the suffix 'CEWN' corresponds to the specific tape-and-reel packaging and temperature grade as defined in the official Maxim Integrated datasheet. Confirm that the component meets RoHS compliance standards required for your assembly process. Cross-reference the manufacturer part number with authorized distributors to ensure authenticity and traceability before procurement.

Selection Notes

Select this component when designing for extreme size constraints and low standby power consumption. It is suitable for single-cell lithium battery systems requiring integrated charging and power distribution. Consider the I2C interface requirements for dynamic power management and the need for precise haptic actuation control via the integrated driver.

Part Context

The MAX20303 belongs to Maxim's portfolio of wearable PMICs, targeting the convergence of power management, battery charging, and peripheral driving in a single chip. It replaces discrete solutions involving separate chargers, LDOs, and haptic drivers, simplifying the bill of materials and reducing PCB area significantly for consumer electronics.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Analog Devices/Maxim Integrated official resources for direct replacements or pin-compatible alternatives if this specific variant is unavailable.