nPM1100 PMIC Product Brief Version 2.0
For more information please visit: nordicsemi.com/nPM1100
Block diagram
Key features
Ultra-small form factor PMIC
y 2.075 × 2.075 mm WLCSP package
y 4 × 4 mm QFN24 package
400 mA battery charger
y Automatic charging mode
y For Li-ion and Li-Polymer batteries
y Battery thermal protection
Highly ecient regulator
y Up to 92 % power conversion eciency
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
Battery charger
Regulatory compliance
Termination voltage
Charge current
JEITA compliant
Versions with 4.1 or 4.2 V,
and 4.25 or 4.35 V
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
Specication
Key benets
Combined USB battery charging and power supply with as little as
23mm
2
PCB area including passives
100 % pin congurable, 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 congurable 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 eciency and low quiescent currents.
The dual-mode regulator operates at up to 92% power conversion
eciency, 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, eciently
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 mm
2
with passive components includ-
ed. This increases to approximately 27 mm
2
when optimized for
performance.
nPM1100
Extremely compact Power Management IC (PMIC)
with power path and charging.
nPM1100 PMIC Product Brief Version 2.0
For more information please visit: nordicsemi.com/nPM1100
Key features
nPM1100 PMIC
y All features enabled
y Performance optimized layout
400 mA battery charger
Highly ecient buck regulator
Input regulator that supports USB charging
Low quiescent currents
Requires no software to operate
I/O
y Pin headers to all pins on nPM1100
y USB connector & battery connectors
LEDs for charge and error indication
Switches
y ICHRG, VTERM, ISET, VOUTB and MODE
Buttons to enter and exit ship mode
nRF5340 SoC Dual-core, multiprotocol SoC for
Bluetooth LE, Bluetooth mesh,
NFC, Thread & Zigbee
nRF52® Series nRF52840, nRF52833, nRF52832,
nRF52820, nRF52811, nRF52810
and nRF52805 SoCs
Power Proler
Kit II
Tool for power measurement
and proling applications
Related Products
nPM1100 PMIC Directly available
through distributors
nPM1100 Evaluation Kit Directly available
through distributors
Order Information
nPM1100 EK
nPM1100 Evaluation Kit
The nPM1100 Evaluation Kit (EK) is a tool for evaluating the
nPM1100 and its features in your application. The kit features
switches for all selectable settings, buttons to enter and exit ship
mode and connectors for batteries, USB and headers for all pins
on the PMIC.
The EK allows for testing of the nPM1100 PMICs capabilities
with existing applications without the need for creating custom
hardware. The board supports charging batteries and powering
applications with the included headers and battery connectors. It
can be powered three ways:
y By USB power via the on-board micro-USB port
y From an external DC power supply through header pins
y From battery power via one of the headers
The kit further includes buttons to enter and exit the PMICs ship
mode together with DIP-switches for all conguration options such
as selecting the charger termination voltage, regulator output volt-
age, charge current and VBUS current limit, and xing the buck
regulator mode to PWM mode only. The kit also includes indicator
LEDs for charge and error indication.
There is no programmable logic on the board, hence setup re-
quires no programming for testing with existing hardware appli-
cations. The EK is designed for optimized performance. Refer to
Nordic whitepaper nWP040 for inductor choices that allow for
a trade-o between maximum performance and minimum size
implementations.
Separate kits available for evaluation of parts with 4.1 to 4.2 V
and 4.25 to 4.35 V charger termination voltage options.