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<\/figure>\n\n\n\nImage source: Nordic Semiconductor<\/em><\/p>\n\n\n\n This is where a boost converter proves valuable. By extracting energy even when voltage falls below operational limits, it allows devices to operate longer. While some power management ICs already include boost converters, they tend to be complex, bulky, and tailored for multi-rail systems, not compact devices running on a single primary cell.<\/p>\n\n\n\n Enter Nordic Semiconductor\u2019s nPM2100. It is the company\u2019s first PMIC designed specifically for primary cell applications and also their smallest yet at just 1.9 mm by 1.9 mm in chip-scale packaging. Unlike conventional PMICs, the nPM2100 was created to extend the usable lifetime of batteries in ultra-low-power devices, whether connected or standalone.<\/p>\n\n\n\n Nordic primarily designed it to support its wireless technologies like Bluetooth, Thread, Matter, and Zigbee. Yet, the nPM2100 is versatile enough for any battery-powered system that requires efficiency, stability, and compactness.<\/p>\n\n\n\n The nPM2100 delivers several power-optimized features that make it stand out:<\/p>\n\n\n\n The boost converter is particularly impressive. It can sustain an output voltage between 1.8 and 3.3 V even when input voltage drops as low as 0.7 V. Once the battery dips below 3.0 V, the boost converter activates and keeps delivering reliable power until the absolute minimum is reached. This allows the nPM2100 to consistently supply 3.3 V at up to 150 mA, provided the cell\u2019s internal resistance doesn\u2019t limit input current.<\/p>\n\n\n\n In addition, the PMIC integrates an LDO regulator controlled via I\u00b2C. This can deliver up to 50 mA with an adjustable output from 0.8 V to 3.0 V, offering flexibility for different loads.<\/p>\n\n\n\n Factory-installed batteries not only improve the consumer\u2019s unboxing experience but also reduce waste by eliminating isolation tags and extra packaging materials. Nordic\u2019s ship mode supports this approach by cutting power draw to just 35 nA, less than the self-discharge current of common alkaline or lithium manganese dioxide cells.<\/p>\n\n\n\n Devices can exit ship mode programmatically or via the SHPHLD pin, which can be configured to wake the PMIC on a rising or falling edge, or even by breaking a ground connection.<\/p>\n\n\n\n For everyday use, hibernate mode offers another layer of efficiency. Consuming only 175 nA, it lets the PMIC sleep while using its internal timer to wake periodically. With a maximum sleep cycle of three days, this mode extends battery life without compromising responsiveness.<\/p>\n\n\n\n Measuring battery voltage alone does not provide a clear picture of remaining capacity, since temperature significantly affects performance. Nordic addresses this challenge with a software-based fuel gauge that combines voltage and temperature data. By applying algorithms tuned to specific chemistries, devices can predict battery life more accurately, ensuring timely replacement without unnecessary waste.<\/p>\n\n\n\n The nPM2100 integrates two GPIO pins configurable via registers, an ADC for monitoring voltage and temperature, and essential functions like a boot monitor and watchdog timer. These ensure reliable operation by resetting or cycling the system if it encounters errors during boot or runtime.<\/p>\n\n\n\n For applications such as smart sensors, medical devices, and other compact systems, every microamp counts. With peak current support of 150 mA and efficiency levels up to 95%, the nPM2100 sets a new standard for primary cell battery management.<\/p>\n\n\n\n By enabling longer lifetimes, reducing e-waste, and enhancing the user experience, Nordic\u2019s nPM2100 goes beyond simply powering devices. It redefines how engineers can harness every last bit of stored energy from primary cells.<\/p>\n","protected":false},"excerpt":{"rendered":" Primary cell batteries have become the go-to solution for countless devices thanks to their low cost, easy integration, and impressive longevity. Today\u2019s ultra-low-power electronics can run for years before needing a replacement, which has fostered a \u201cfit-and-forget\u201d mindset. But no matter how efficient the design, stored power eventually runs out, often leaving valuable unused energy […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[152,150,146,141,142,143,151,149,148,139,153,140,147,145,144],"class_list":["post-124","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-battery-lifetime-extension","tag-battery-powered-devices","tag-bluetooth-power-management","tag-boost-converter-ic","tag-compact-power-ics","tag-energy-harvesting-ic","tag-low-power-voltage-regulation","tag-npm2100-pmic","tag-power-management-ic","tag-primary-cell-batteries","tag-smart-fuel-gauge-ic","tag-thread-and-matter-pmic","tag-ultra-low-power-electronics","tag-wireless-technology-pmic","tag-zigbee-power-management"],"yoast_head":"\nThe Role of the Boost Converter<\/em><\/h3>\n\n\n\n
A Purpose-Built Solution<\/em><\/h3>\n\n\n\n
Key Features that Set It Apart<\/em><\/h3>\n\n\n\n
\n
Modes that Maximize Efficiency<\/em><\/h3>\n\n\n\n
Smarter Battery Insight<\/em><\/h3>\n\n\n\n
Additional Capabilities<\/em><\/h3>\n\n\n\n
Why It Matters<\/em><\/h3>\n\n\n\n