PCA9420/1 | PMIC, Low Power | NXP Semiconductors

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PMIC for Low Power Applications

PCA9420-PCA9421 Active

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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.

Block Diagram

PCA9420-PCA9421

PCA942X Block Diagram
Get diagram PDF

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

More

Buy/Parametrics

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N true 0 PSPPCA9420-PCA9421en 8 Brochure Brochure t518 2 Data Sheet Data Sheet t520 2 Fact Sheet Fact Sheet t523 1 User Guide User Guide t792 1 User Manual User Manual t1009 1 White Paper White Paper t530 1 en_US en_US en Data Sheet Data Sheet 2 1 1.0 English The PCA9421 is a highly integrated Power Management IC (PMIC), targeted to provide a full power management solution for low-power microcontroller applications or other similar applications. 1697496527931726015854 PSP 871.5 KB None None documents None 1697496527931726015854 /docs/en/data-sheet/PCA9421.pdf 871459 /docs/en/data-sheet/PCA9421.pdf PCA9421 documents N N 2023-10-16 PCA9421, Power Management IC for Low-Power Microcontroller Applications Data Sheet /docs/en/data-sheet/PCA9421.pdf /docs/en/data-sheet/PCA9421.pdf Data Sheet N 980000996212993340 2023-10-16 pdf N en Oct 16, 2023 980000996212993340 Data Sheet Y N PCA9421, Power Management IC for Low-Power Microcontroller Applications Data Sheet 2 1.1 Chinese The PCA9420 is a highly-integrated Power Management IC (PMIC), targeted to provide a full power management solution for low power microcontroller applications or other similar applications. 1559584844587709345807zh PSP 1.2 MB None None documents None 1559584844587709345807 /docs/zh/data-sheet/PCA9420DS.pdf 1200979 /docs/zh/data-sheet/PCA9420DS.pdf PCA9420 documents N N 2019-06-03 PCA9420, Power Management IC for Low-Power Microcontroller Applications Data Sheet /docs/zh/data-sheet/PCA9420DS.pdf /docs/zh/data-sheet/PCA9420DS.pdf Data Sheet N 980000996212993340 2023-07-27 zh Oct 24, 2019 980000996212993340 Data Sheet Y N Power management IC for low-power microcontroller applications 4.2 English The PCA9420 is a highly-integrated Power Management IC (PMIC), targeted to provide a full power management solution for low power microcontroller applications or other similar applications. 1559584844587709345807 PSP 1.2 MB None None documents None 1559584844587709345807 /docs/en/data-sheet/PCA9420.pdf 1200979 /docs/en/data-sheet/PCA9420.pdf PCA9420 documents N N 2019-06-03 PCA9420, Power Management IC for Low-Power Microcontroller Applications Data Sheet /docs/en/data-sheet/PCA9420.pdf /docs/en/data-sheet/PCA9420.pdf Data Sheet N 980000996212993340 2023-07-27 pdf N en Jul 26, 2023 980000996212993340 Data Sheet Y N PCA9420, Power Management IC for Low-Power Microcontroller Applications Data Sheet User Guide User Guide 1 3 English This page will help guide you through the process of learning about your PCA9420UK/PCA9420BS board. 1570551456413738159107 PSP 1570551456413738159107 GS-PCA9420 GS-PCA9420 Guide 0 2019-10-08 /document/guide/getting-started-with-the-pca9420uk-pca9420bs:GS-PCA9420 GS-PCA9420 User Guide 132339537837198660 2025-03-05 HTML en Oct 8, 2019 132339537837198660 User Guide Y Getting Started with the PCA9420UK/PCA9420BS User Manual User Manual 1 4 1.2 English This user manual provides guidelines on how to use the PCA9420 evaluation board 1563475436916707611119 PSP 1.5 MB Registration without Disclaimer None documents Extended 1563475436916707611119 /secured/assets/documents/en/user-guide/UM11216.pdf 1505152 /secured/assets/documents/en/user-guide/UM11216.pdf UM11216 documents Y N 2019-07-18 UM11216, PCA9420UK-EVM Evaluation Board User Manual /webapp/Download?colCode=UM11216 /secured/assets/documents/en/user-guide/UM11216.pdf User Manual N 309919593431037931 2023-12-14 pdf Y en Mar 11, 2020 309919593431037931 User Manual Y N UM11216, PCA9420UK-EVM Evaluation Board User Manual Brochure Brochure 2 5 1.0 English Fighting Guide for PCA942x IOT PMIC vs Discrete Power Solutions 1733510367804707627807 PSP 1.8 MB Registration without Disclaimer None documents Extended 1733510367804707627807 /secured/assets/documents/en/brochure/PCA942x-vs-Discrete.pdf 1775270 /secured/assets/documents/en/brochure/PCA942x-vs-Discrete.pdf PCA942x-VS-DISCRETE documents Y N 2024-12-06 PCA9420, PCA9421 Fighting Guide /webapp/Download?colCode=PCA942x-VS-DISCRETE /secured/assets/documents/en/brochure/PCA942x-vs-Discrete.pdf Brochure N 712453003803778552 2024-12-15 pdf Y en Dec 6, 2024 712453003803778552 Brochure Y N PCA9420, PCA9421 Fighting Guide 6 4 Japanese NXPのPMICは、i.MXアプリケーション、プロセッサ、ネットワーキング、その他のプロセッサ向けに、スケーラブルで堅牢な実績のあるプラットフォーム・ソリューションを提供します。 1455566973736725260918ja PSP 505.9 KB None None documents None 1455566973736725260918 /docs/ja/brochure/PMICBRA4.pdf 505864 /docs/ja/brochure/PMICBRA4.pdf PMICBRA4 documents N N 2016-10-31 Power Management Integrated Circuits Brochure /docs/ja/brochure/PMICBRA4.pdf /docs/ja/brochure/PMICBRA4.pdf Brochure N 712453003803778552 2025-02-19 ja Nov 1, 2023 712453003803778552 Brochure Y N パワー・マネジメント集積回路 (PMIC) – パンフレット 6 English Power management integrated circuits are designed to offer optimum integration for a wide range of devices. 1455566973736725260918 PSP 505.9 KB None None documents None 1455566973736725260918 /docs/en/brochure/PMICBRA4.pdf 505864 /docs/en/brochure/PMICBRA4.pdf PMICBRA4 documents N N 2016-10-31 Power Management Integrated Circuits Brochure /docs/en/brochure/PMICBRA4.pdf /docs/en/brochure/PMICBRA4.pdf Brochure N 712453003803778552 2025-02-19 pdf N en Sep 6, 2024 712453003803778552 Brochure Y N Power Management Integrated Circuits Brochure Fact Sheet Fact Sheet 1 7 0 English PCA9420/21 are highly-integrated Power Management ICs (PMIC), designed to provide a full power management solution for low power applications. 1562002316235694859408 PSP 435.0 KB None None documents None 1562002316235694859408 /docs/en/fact-sheet/PCA9420-21-FS.pdf 435015 /docs/en/fact-sheet/PCA9420-21-FS.pdf PCA9420-21-FS documents N N 2019-07-01 PCA9420-21, PMIC for Low Power Application – Fact Sheet /docs/en/fact-sheet/PCA9420-21-FS.pdf /docs/en/fact-sheet/PCA9420-21-FS.pdf Fact Sheet N 736675474163315314 2024-05-29 pdf N en May 28, 2024 736675474163315314 Fact Sheet Y N PCA9420-21, PMIC for Low Power Application – Fact Sheet White Paper White Paper 1 8 0 Chinese 软件定义汽车的电源架构由系统基础芯片(SBC)和/或电源管理集成电路(PMIC)进行管理，尽管驾驶员看不见，但电源架构不可或缺。每个组件的电源都构成了复杂的挑战，需要同样复杂的解决方案。 1718053785186698755373zh PSP 212.9 KB Registration without Disclaimer None documents Extended 1718053785186698755373 /secured/assets/documents/zh/white-paper/PMICWPA4.pdf 212885 /secured/assets/documents/zh/white-paper/PMICWPA4.pdf PMICWPA4 documents Y N 2024-06-10 Powering the Ambition of Software-Defined Vehicles White Paper /secured/assets/documents/zh/white-paper/PMICWPA4.pdf https://www.nxp.com.cn/webapp/Download?colCode=PMICWPA4&docLang=zh White Paper N 918633085541740938 2025-02-19 zh Jun 10, 2024 918633085541740938 White Paper Y N 驱动软件定义汽车 0 English While entirely invisible to the driver, the software-defined vehicle’s power architecture, orchestrated through System Basis Chips (SBCs) and/or Power Management Integrated Circuits (PMICs), is fundamental. The power supply for every component poses sophisticated challenges which require equally sophisticated solutions. 1718053785186698755373 PSP 212.9 KB Registration without Disclaimer None documents Extended 1718053785186698755373 /secured/assets/documents/en/white-paper/PMICWPA4.pdf 212885 /secured/assets/documents/en/white-paper/PMICWPA4.pdf PMICWPA4 documents Y N 2024-06-10 Powering the Ambition of Software-Defined Vehicles White Paper /webapp/Download?colCode=PMICWPA4 /secured/assets/documents/en/white-paper/PMICWPA4.pdf White Paper N 918633085541740938 2025-02-19 pdf Y en Jun 10, 2024 918633085541740938 White Paper Y N Powering the Ambition of Software-Defined Vehicles White Paper false 0 PCA9420-PCA9421 downloads en true 1 Y PSP Y Y Brochure 2 /secured/assets/documents/en/brochure/PCA942x-vs-Discrete.pdf 2024-12-06 1733510367804707627807 PSP 5 Dec 6, 2024 Brochure Fighting Guide for PCA942x IOT PMIC vs Discrete Power Solutions Registration without Disclaimer /secured/assets/documents/en/brochure/PCA942x-vs-Discrete.pdf English documents 1775270 None 712453003803778552 2024-12-15 Y /webapp/Download?colCode=PCA942x-VS-DISCRETE PCA9420, PCA9421 Fighting Guide /secured/assets/documents/en/brochure/PCA942x-vs-Discrete.pdf documents 712453003803778552 Brochure N en Extended Y pdf 1.0 Y N PCA9420, PCA9421 Fighting Guide 1.8 MB PCA942x-VS-DISCRETE N 1733510367804707627807 /docs/en/brochure/PMICBRA4.pdf 2016-10-31 1455566973736725260918 PSP 6 Sep 6, 2024 Brochure Power management integrated circuits are designed to offer optimum integration for a wide range of devices. None /docs/en/brochure/PMICBRA4.pdf English documents 505864 None 712453003803778552 2025-02-19 N /docs/en/brochure/PMICBRA4.pdf Power Management Integrated Circuits Brochure /docs/en/brochure/PMICBRA4.pdf documents 712453003803778552 Brochure N en None Y pdf 6 N N Power Management Integrated Circuits Brochure 505.9 KB PMICBRA4 N 1455566973736725260918 Data Sheet 2 /docs/en/data-sheet/PCA9421.pdf 2023-10-16 1697496527931726015854 PSP 1 Oct 16, 2023 Data Sheet The PCA9421 is a highly integrated Power Management IC (PMIC), targeted to provide a full power management solution for low-power microcontroller applications or other similar applications. None /docs/en/data-sheet/PCA9421.pdf English documents 871459 None 980000996212993340 2023-10-16 N /docs/en/data-sheet/PCA9421.pdf PCA9421, Power Management IC for Low-Power Microcontroller Applications Data Sheet /docs/en/data-sheet/PCA9421.pdf documents 980000996212993340 Data Sheet N en None Y pdf 1.0 N N PCA9421, Power Management IC for Low-Power Microcontroller Applications Data Sheet 871.5 KB PCA9421 N 1697496527931726015854 /docs/en/data-sheet/PCA9420.pdf 2019-06-03 1559584844587709345807 PSP 2 Jul 26, 2023 Data Sheet The PCA9420 is a highly-integrated Power Management IC (PMIC), targeted to provide a full power management solution for low power microcontroller applications or other similar applications. None /docs/en/data-sheet/PCA9420.pdf English documents 1200979 None 980000996212993340 2023-07-27 N /docs/en/data-sheet/PCA9420.pdf PCA9420, Power Management IC for Low-Power Microcontroller Applications Data Sheet /docs/en/data-sheet/PCA9420.pdf documents 980000996212993340 Data Sheet N en None Y pdf 4.2 N N PCA9420, Power Management IC for Low-Power Microcontroller Applications Data Sheet 1.2 MB PCA9420 N 1559584844587709345807 Fact Sheet 1 /docs/en/fact-sheet/PCA9420-21-FS.pdf 2019-07-01 1562002316235694859408 PSP 7 May 28, 2024 Fact Sheet PCA9420/21 are highly-integrated Power Management ICs (PMIC), designed to provide a full power management solution for low power applications. None /docs/en/fact-sheet/PCA9420-21-FS.pdf English documents 435015 None 736675474163315314 2024-05-29 N /docs/en/fact-sheet/PCA9420-21-FS.pdf PCA9420-21, PMIC for Low Power Application – Fact Sheet /docs/en/fact-sheet/PCA9420-21-FS.pdf documents 736675474163315314 Fact Sheet N en None Y pdf 0 N N PCA9420-21, PMIC for Low Power Application – Fact Sheet 435.0 KB PCA9420-21-FS N 1562002316235694859408 User Guide 1 2019-10-08 1570551456413738159107 PSP 3 Oct 8, 2019 User Guide This page will help guide you through the process of learning about your PCA9420UK/PCA9420BS board. GS-PCA9420 English Guide 0 132339537837198660 2025-03-05 /document/guide/getting-started-with-the-pca9420uk-pca9420bs:GS-PCA9420 Getting Started with the PCA9420UK/PCA9420BS GS-PCA9420 132339537837198660 User Guide en Y HTML GS-PCA9420 1570551456413738159107 User Manual 1 /secured/assets/documents/en/user-guide/UM11216.pdf 2019-07-18 1563475436916707611119 PSP 4 Mar 11, 2020 User Manual This user manual provides guidelines on how to use the PCA9420 evaluation board Registration without Disclaimer /secured/assets/documents/en/user-guide/UM11216.pdf English documents 1505152 None 309919593431037931 2023-12-14 Y /webapp/Download?colCode=UM11216 UM11216, PCA9420UK-EVM Evaluation Board User Manual /secured/assets/documents/en/user-guide/UM11216.pdf documents 309919593431037931 User Manual N en Extended Y pdf 1.2 Y N UM11216, PCA9420UK-EVM Evaluation Board User Manual 1.5 MB UM11216 N 1563475436916707611119 White Paper 1 /secured/assets/documents/en/white-paper/PMICWPA4.pdf 2024-06-10 1718053785186698755373 PSP 8 Jun 10, 2024 White Paper While entirely invisible to the driver, the software-defined vehicle’s power architecture, orchestrated through System Basis Chips (SBCs) and/or Power Management Integrated Circuits (PMICs), is fundamental. The power supply for every component poses sophisticated challenges which require equally sophisticated solutions. Registration without Disclaimer /secured/assets/documents/en/white-paper/PMICWPA4.pdf English documents 212885 None 918633085541740938 2025-02-19 Y /webapp/Download?colCode=PMICWPA4 Powering the Ambition of Software-Defined Vehicles White Paper /secured/assets/documents/en/white-paper/PMICWPA4.pdf documents 918633085541740938 White Paper N en Extended Y pdf 0 Y N Powering the Ambition of Software-Defined Vehicles White Paper 212.9 KB PMICWPA4 N 1718053785186698755373 true Y Products

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