MAXIM MAX20303LEWN+T

MAX20303 is a highly integrated, programmable power management solution designed for ultra-low-power wearable applications. Optimized for size and efficiency, it enhances end-product value by extending battery life and reducing overall solution size. A flexible set of power-optimized voltage regulators — including multiple buck, boost, buck-boost, and linear regulators — provides a high level of integration and enables a fully optimized power architecture. Each regulator's quiescent current is specifically targeted at 1μA (typical) 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. The charger incorporates built-in thermal management and input protection. The device also includes a factory-programmable button controller with multiple customizable inputs to meet product-specific UX requirements. Three integrated LED current sinks are included for indicator or backlight functions, along with an ERM/LRA driver with automatic resonance tracking to deliver sophisticated haptic feedback to users. The device is configurable via I²C, allowing programming of various functions and readback of device status, including the ability to read temperature and supply voltages using the integrated ADC. The device is available in a 56-bump, 0.5mm pitch, 3.71mm × 4.21mm WLP and operates over a -40°C to +85°C temperature range.

• Extended battery life between charges
• 2 ultra-low IQ buck regulators (typical quiescent current <1μA each)
• 220mA output
• Buck regulator 1: output voltage 0.8V to 2.375V, 25mV steps
• Buck regulator 2: output voltage 0.8V to 3.95V, 50mV steps
• Ultra-low IQ low-voltage LDO/load switch (typical quiescent current 1μA)
• Input voltage 1.16V to 2.0V
• 50mA output
• Output voltage 0.5V to 1.95V, 25mV steps
• Ultra-low IQ LDO/load switch (typical quiescent current 1μA)
• Input voltage 1.71V to 5.5V
• 100mA output
• Output voltage 0.9V to 4V, 100mV steps
• Ultra-low IQ buck-boost regulator (typical quiescent current 1.3μA)
• 250mW output
• Output voltage 2.5V to 5V, 100mV steps
• Easy Li-ion battery charging implementation
• Wide fast-charge current range: 5mA to 500mA
• Intelligent power path selector
• 28V / -5.5V input tolerant
• Programmable JEITA current/voltage profile
• Minimized solution footprint through high integration
• Safety output LDO
• 15mA output when CHGIN present
• 5V or 3.3V output
• Haptic driver
• ERM/LRA driver with fast start and brake
• Automatic resonance tracking (LRA only)
• Multiple display options supported
• Ultra-low IQ boost regulator (typical quiescent current 2.4μA)
• 300mW output
• Output voltage 5V to 20V, 250mV steps
• 3-channel current sink
• 20V tolerant
• Programmable range 0.6 to 30mA
• Optimized system control
• Power-on/reset controller
• Programmable button controller
• Programmable power sequencing
• Factory shelf mode
• On-chip voltage monitoring multiplexer and ADC

• Wearable devices
• IoT