nPM1100 Power Management IC
Pin configurable and compact form-factor PMIC
The nPM1100 is a Power Management IC (PMIC) combining an integrated battery charger with a dual-mode configurable buck regulator. The nPM1100 simplifies power supply design while delivering high conversion efficiency and low quiescent current to maximize battery life in space-constrained wearable, medical, and IoT applications. It is 100 % pin configurable and does not require any software for configuration or control.
With a total solution footprint as low as 23 mm² including all passive components, the nPM1100 enables compact battery-powered designs that previously required multiple discrete components. PCB area is slightly larger for efficiency optimized designs.
Battery management
- Linear battery charger
- Supported battery types: Li-ion and Li-Po
- Charge current: 20–400 mA
- Selectable termination voltage
- 4.1 V or 4.2 V on the standard VTERM device
- 4.25 V or 4.35 V on the high VTERM device
- Battery input voltage: 2.3 - 4.35 V
- JEITA compliant
- Dynamic power-path
- NTC battery thermal protection
- System regulator
- USB compatible with 100 mA and 500 mA current limit
- Input voltage: 4.1 – 6.7 V
- 20 V overvoltage protection
- Unregulated system rail
- Output voltage: 3 – 5.5 V
- Output current: up to 660mA
Voltage regulators
- Buck regulator
- Output current: 150 mA
- Output voltage: 1.8 V, 2.1 V, 2.7 V, or 3.0 V (pin selectable)
- Automatic hysteretic and PWM mode switching, or forced PWM mode
- Power conversion efficiency up to 92%
System management
- Ship mode: 460 nA
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Key features
- Supported batteries: Li-ion and Li-Po
- USB compatible charger
- Overvoltage protection
- One buck regulator
- Ship mode
- LED drivers for charge state indication
- Pin configurable - no software required
- Ultra-compact total solution footprint