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nPM1304 Power Management IC

Highly integrated with unique system management features for small size batteries

The nPM1304 is a highly integrated multifunction Power Management IC (PMIC) that includes battery charger, an algorithm-based fuel gauge, two ultra-efficient step-down buck regulators, two LDOs / load switches, and comprehensive system management functions into a single device. It supports battery charge current as low as 4 mA. The nPM1304 reduces the bill of materials by replacing multiple discrete components while enabling greater design flexibility through a fully I²C-compatible TWI interface. 

The nPM1304 includes an algorithm-based battery fuel gauge solution with state of charge and state of health reporting. It is highly accurate, consumes ultra-low power and does not require any extra components. A rich set of system management features including a hardware watchdog, power-loss warning, hard-reset supervisory circuit, failed-boot recovery, ship and hibernate mode.A  

nPM1304 Datasheet [PDF | HTML] 

Battery management 

  • Linear battery charger 
    • Supported battery types: Li-ion, Li-poly, and LiFePO₄ 
    • Charge current: 4 - 100 mA 
    • Charging termination voltage: 3.5 – 4.45 V 
      • 50 mV termination voltage steps 
    • Battery input voltage: 2.3 - 4.65 V 
    • Dynamic power-path 
    • JEITA compliant 
    • NTC battery thermal protection 
  • Fuel gauge including battery health 
    • State of charge, state of health and cycle tracking 
  • System regulator 
    • USB type-C compliant with 100 mA, 500 mA, and 1500 mA current limit 
    • Input voltage: 4.0 – 5.5 V 
    • 22 V overvoltage protection 
    • Unregulated system rail 
      • Output voltage: 3 – 5.5 V  
      • Output current: 100mA (from battery), 1.5A (from USB) 

Voltage regulators 

  • Two buck regulators 
    • Output current: 200 mA 
    • Output voltage: 1.0 – 3.3 V 
      • 100 mV steps 
    • Automatic hysteretic and PWM mode switching, or forced PWM mode 
    • Power conversion efficiency up to 93% 
  • Two LDOs / load switches 
    • Output current: 50 mA (LDO) / 100 mA (load switch) 
    • Output voltage: 1.0 – 3.3 V 
      • 100 mV steps (LDO)

System management

  • Hard reset (one or two buttons)
  • Watchdog timer
  • Failed-boot recovery
  • Power loss warning
  • Ship mode: 370 nA
  • Hibernate mode: 500 nA
  • Five GPIOs
  • Three 5mA LED drivers
  • I²C compatible TWI 
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Key features
  • Supported batteries: Li-ion, Li-Po and LiFePO₄ 
  • USB-C compatible charger 
  • Overvoltage protection 
  • Fuel gauge including battery health 
  • Two buck regulators 
  • Two LDOs / load switches 
  • Ship & hibernate modes 
  • Hard reset 
  • Watchdog timer 
  • Failed-boot recovery 
  • Power loss warning 
  • Five GPIOs 
  • Three LED drivers 
  • TWI configuration interface 

FAQ

Frequently asked questions for the nPM1300 and nPM1304 [html]

Introduction the nPM1304

The nPM1304 complements the award-winning nPM1300 PMIC to support small size batteries

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Discover the nPM1300


The nPM1304 complements the award-winning nPM1300 PMIC to support small size batteries. Get to know power management, and the versatile and feature-rich nPM1300. Grab a coffee and enjoy!

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