MCX N94x/54x Highly Integrated Multicore MCUs with On-Chip Accelerators, Intelligent Peripherals and Advanced Security
Design Files
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PMIC for Low Power Applications
The PCA9420/21 are highly integrated power management ICs (PMICs), targeted to provide power management solution for low-power microcontroller applications or other similar applications powered by Li-ion battery and/or 5 V adapter non-portable applications.
These devices integrate 2x buck converters, 2x LDOs with programmable output voltage range. PCA9420 also integrates a linear battery charger capable of charging up to 315 mA current with I²C programmable constant current (CC) and constant voltage (CV) values.
The chips are offered in 2.09 mm x 2.09 mm, 5 x 5 bump, 0.4 mm pitch WLCSP package; and 3 mm x 3 mm, 24-pin QFN package.
Product Details
Features
General Features
- Optimized for low-power applications
- Typical 100 nA quiescent current in ship mode
- Small total solution size
- Built-in “Mode” configuration to accommodate a fast mode switch supporting different MCU operation modes
- i.MX RT MCU supported
- Load supply voltage 2 V (Min), 6.8 V (Max)
- I²C interface and input control
- Output current 0.5 A
Battery Charger (Only for PCA9420)
- Linear battery charger for charging single-cell Li-ion battery
- 20 V tolerance on VIN pin
- Programmable constant current (up to 315 mA) and precharge low voltage current threshold
- Programmable constant voltage regulation
- Built-in protection features such as input OVP, battery SCP, thermal protection
- JEITA compliant
- Battery attached detection
Temperature
- Overtemperature protection
- -40 °C ~ +85 °C ambient temperature range
DC-DC (Buck) Converters
- Programmable output voltage
- SW1: core buck converter, 0.5 V ~ 1.5 V output, 25 mV/step and a fixed 1.8 V, up to 250 mA
- SW2: system buck converter, 1.5 V ~ 2.1 V/2.7 V ~ 3.3 V output, 25 mV/step, up to 500 mA
- Low-power mode for extra power saving
LDOs
- Programmable output voltage regulation
- LDO1: always-on LDO, 1.70 V ~ 1.90 V output, 25 mV/step, up to 1 mA
- LDO2: LDO system, 1.5 V ~ 2.1 V/2.7 V ~ 3.3 V output, 25 mV/step, up to 250 mA
Interface
- 1 MHz I²C-bus target interface
Package
- 2.09 mm x 2.09 mm, 5 x 5 bump, 0.4 mm pitch WLCSP
- 3 mm x 3 mm, 24-pin QFN
Product Longevity Program
- These products are included in the NXP Product Longevity program ensuring a stable supply of products for your embedded designs. The PCA9420 and PCA9421 are included in the 15-year program
Part numbers include: PCA9420UK, PCA9421BS, PCA9421UK.
Related products
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Documentation
Quick reference to our documentation types.
Design Resources
Hardware
Quick reference to our
board types.
1-5 of 9 hardware offerings
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Evaluation and Development BoardsPCA9421 Evaluation BoardFeatured
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Evaluation and Development BoardsPCA9420 Evaluation BoardFeatured
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Evaluation and Development Boardsi.MX RT595 Evaluation Kit
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Evaluation and Development Boardsi.MX RT600 Evaluation Kit
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Evaluation and Development BoardsNXH3675EVK Evaluation Kit – Bluetooth® 5.3 AoBLE Certified with LPC55 MCU for USB Audio
Software
Quick reference to our software types.
1 software file
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Application Example Software
Application Software Pack: Dynamic Voltage Scaling Using PVT Sensor
Note: For better experience, software downloads are recommended on desktop.
Engineering Services
To get further assistance directly from NXP, please see our Engineering Services.
1 engineering service
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Independent Design House (IDH)
Hardware Engineering
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