Eng 简体

nPM2100 Power Management IC

Primary-cell PMIC with ultra-efficient boost regulator and fuel gauge

The nPM2100 is a Power Management IC specifically engineered for primary-cell battery applications, addressing the unique power management requirements of non-rechargeable battery-powered products. It supports Alkaline AA/AAA/LRxx cells (up to two in series), 3 V LiMnO₂ coin cells (CR2032 and similar), single- or dual-cell silver oxide and zinc-air coin-cell batteries, or any primary battery within 0.7–3.4 V input range. 

This is accomplished though an ultra-efficient boost regulator with auto pass-through mode which allows batteries to be used all the way down to their functional endpoint. The on-chip LDO enables the use of a second voltage rail. 
The nPM2100 includes an algorithm-based battery fuel gauge and a rich set of system management features including a hardware watchdog, hard reset, failed-boot recovery, break-to-wake, ship and hibernate mode. 

nPM2100 Datasheet [PDF | HTML] 

 

Battery management

  • Supported battery types
    • Alkaline AA/AAA/LRxx cells (up to two in series)
    • 3 V LiMnO₂ coin cells (CR2032 and similar)
    • Single- or dual-cell silver oxide and zinc-air coin-cell batteries
    • Any primary battery within 0.7–3.4 V input range
    • Fuel gauge
    • State of charge

Voltage regulators

  • Boost regulator
    • Output current: 150 mA
    • Output voltage: 1.8 – 3.3 V
      • 50 mV steps
    • Automatic switching between higher power, low power and ultra-low power modes, or pass-through mode
    • Quiescent current: 150 nA
    • Efficiency: up to 95% at 50 mA, 90.5% at 10 µA
  • LDOs / load switches
    • Output current: 50 mA
    • Output voltage: 0.8 – 3.0 V (LDO)
    • 50 mV steps (LDO)

System management

  • Hard reset
  • Watchdog timer
  • Failed-boot recovery
  • Ship mode: 35 nA
  • Hibernate mode: 175 nA
  • Two GPIOs
  • I²C compatible TWI
Get samples
Ask us about this
Key features

  • Supported batteries: alkaline AA/AAA/LRxx (1S and 2S), 3 V LiMnO₂ coin cells, and other primary batteries 

  • Fuel gauge 

  • Ultra-efficient boost regulator 

  • LDO / load switch 

  • Ship & hibernate mode 

  • Break-to-wake

  • Hard reset 

  • Watchdog timer 

  • Failed-boot recovery 

  • Two GPIOs 

  • TWI configuration interface 

Introducing the nPM2100

A complete energy-saving toolbox for non-rechargeable products

Software & tools webinars

Please visit the Support & training section on the Software & Tools page for software and tool-specific webinars and videos.

Support

Do you have any technical questions?

logo, company name

Developer Zone

The DevZone is where you can get in contact with our Technical Support team. You can post a private or public ticket and will be ensured support from Nordic. You can also find extensive tutorials, guides and blogs made by and for developers.