nPM1100 PMIC Product Brief Version 1.1

For more information please visit: nordicsemi.com/nPM1100

Block diagram

Key features



Ultra-small form factor PMIC

y 2.075 x 2.075 mm WLCSP package



400 mA battery charger

y Automatic charging mode

y For Li-ion and Li-Polymer batteries

y Battery thermal protection



Highly efficient regulator

y Up to 92 % power conversion efficiency

y Hysteretic and PWM mode

y Selectable output voltage

y 150 mA current limit



Input regulator with USB support

y SDP, CDP, DCP port detection

y Overvoltage protection



Ship mode that disables power output



Drivers for charge and error LEDs



-40°C to 85°C operating temperature

Applications



Wearables



Remote controls



Personal medical devices



Smart home sensors

Battery charger

Regulatory compliance

Termination voltage

Charge current

JEITA compliant

4.1 V or 4.2 V selectable

20 mA to 400 mA

Input regulator

Input voltage

Output voltage

Overvoltage protection

USB current limit

4.1 to 6.7 V

3.0 to 5.5 V unregulated

20 V transient

100 mA or 500 mA

Buck regulator

Output voltage

Current limit

1.8, 2.1, 2.7 or 3.0 V

150 mA output

Quiescent currents

800 nA typical, 460 nA in

ship mode

Battery voltage

2.3 V to 4.35 V

Operating temp

-40°C to 85°C

Specification

Key benefits



Combined USB battery charging and power supply with as little as

23mm2 PCB area including passives



100 % pin configurable, no software needed



Prolongs battery life of any nRF52

® or nRF53® Series SoC based

application using a rechargeable battery



Provides ample current for both the SoC and additional circuitry

Overview

The nPM1100 is a dedicated power management IC (PMIC) with

dual-mode configurable buck regulator and integrated battery

charger. It is designed as a complementary component to Nordic’s

nRF52® Series and nRF53® Series System-on-Chips (SoCs) to ensure

reliable power delivery and stable operation, whilst maximizing

battery life through high efficiency and low quiescent currents.

The dual-mode regulator operates at up to 92% power conversion

efficiency, prolonging battery life of any nRF52® or nRF53® SoC

based application using a rechargeable battery. Hysteretic mode

reduces current consumption for low load conditions, while PWM

mode allows for cleaner power operation and better performance

for higher loads. The regulator can deliver up to 150 mA, efficiently

providing ample current for the nRF52® or nRF53® Series SoC plus

additional circuitry.

The device can also be used as a generic PMIC for any recharge-

able application. Its extremely compact form factor makes it ideal

for advanced wearables, connected medical devices, and other

size constrained applications. When optimized for size, PCB area

usage can be as low as 23 mm2 with passive components includ-

ed. This increases to approximately 27 mm2 when optimized for

performance.

nPM1100

Extremely compact Power Management IC (PMIC)

with power path and charging.