Tiny: ultra-low IQ DC/DC power supply with battery charging reference design for wearables
Description
A highly-integrated power supply reference design for smartwatches and fitness trackers enabling ultra-low Iq in an ultra-small (48sqmm) solution size. Supply includes seven power rails for the system including battery charger: LDO: DC-DC buck converters and integrated boost converter for heart rate monitor AFE LED drive supply or PMOLED bias.
Features
- Ultra-small (48mm2) total footprint power supply solution400nA Iq linear battery charge management solution with fast charge: LDO: load switch: ADC and over-voltage/over-current protectionSelectable: integrated boost rail for PMOLED display or heart-rate monitor LED driverSeven rails for various peripherals:1.8V@1A1.8V@0.3A1.8V@0.1A1.8V@0.1A1.2V@0.2A12V@0.06A: or5V@ 0.150A
Applications
- Headsets/headphones & earbuds
- Hearing aid
- Wearable fitness & activity monitor
- Smartwatch
- Multifunction relay
- Processor module
- Wired communication modules
- Medical sensor patches
Product Categories
- Power management