NPM1100-CAAA-R7

Battery Management Overview

The nPM1100-CAAA-R7 is a compact Power Management IC (PMIC) from Nordic Semiconductor, integrating a linear battery charger and a dual-mode configurable buck regulator. It supports Li-ion and Li-Po batteries with charge currents ranging from 20 to 400 mA. The device features a USB-compatible input regulator accepting 4.1 V to 6.7 V, providing overvoltage protection up to 20 V. An unregulated system rail outputs up to 660 mA at 3–5.5 V. The buck regulator delivers 150 mA at selectable voltages of 1.8 V, 2.1 V, 2.7 V, or 3.0 V, achieving efficiency up to 92%. It operates between -40 °C and 85 °C in a 25-pin WLCSP package measuring 2.075 mm x 2.075 mm.

Battery Management Feature Summary

• Integrates a linear battery charger compatible with Li-ion and Li-Po batteries alongside a dual-mode configurable buck regulator for efficient power conversion.
• Features a USB-compatible input regulator with dynamic power-path management and 20 V overvoltage protection for robust system operation.
• Provides an unregulated system rail capable of delivering up to 660 mA, supporting direct powering of attached circuits without additional regulation.
• Utilizes 100% pin-configurable architecture, eliminating the need for software configuration or control during operation.

Battery Management Applications

• Space-constrained wearable electronic devices
• Interconnected personal medical equipment
• Smart home sensors and IoT nodes
• Remote controls and handheld controllers

Battery Management Procurement Notes

Verify the specific suffix 'R7' indicates tape-and-reel packaging when sourcing components. Confirm that the CAAA variant corresponds to the standard termination voltage options (4.1 V or 4.2 V) rather than high-voltage versions. Ensure compatibility with the intended PCB layout constraints, as the total solution footprint including passives is approximately 23 mm². Cross-reference the operating temperature range requirements against the specified -40 °C to 85 °C limit for the target application environment.

Battery Management Selection Notes

Select this component when minimizing PCB area is critical, as it replaces multiple discrete power management parts. Choose the nPM1100-CAAA-R7 if software resources are limited, given its fully pin-configurable nature. Consider the 150 mA buck regulator output current limit for SoC powering needs. Evaluate the 660 mA unregulated rail capacity for peripheral loads. Ensure the input voltage range of 4.1 V to 6.7 V aligns with the available power sources, such as USB ports.

Battery Management Part Context

The nPM1100 series represents Nordic Semiconductor's entry into dedicated power management integrated circuits, designed to complement their nRF52 and nRF53 System-on-Chip families. This PMIC addresses the growing demand for ultra-compact power solutions in the Internet of Things sector. By combining charging and regulation functions, it simplifies design complexity for developers creating small-form-factor battery-powered devices.

Battery Management Replacement Considerations

No public confirmed substitute part numbers are documented in the provided source material.