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Products
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Power
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Power Management ICs (PMICs)
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ACT8945A

ACT8945A

Advanced PMIC for Atmel SAMA5Dx Series & SAM9 Series Processors

Qorvo's ACT8945A PMIC is a cost effective, highly efficient ActivePMU™ power management solution, optimized for the unique power, voltage sequencing, and control requirements of the Atmel SAMA5 and SAM9 based eMPU series processors. It is ideal for a wide range of high performance portable handheld applications such as smartwatches. wearables, POS terminals, tablet PCs, human-machine interfaces, control panels, smart grid infrastructures, network gateways, M2M systems, 2D barcode scanners, barcode printers, machine vision equipment, as well as home and commercial building automations, medical devices and white goods.

This device features three step-down DC/DC converters and four low-noise, low-dropout (LDO) regulators, along with a complete battery charging solution featuring ActivePath™ system-power selection function. The three DC/DC converters utilize a high efficiency, fixed-frequency (2 MHz), current-mode PWM control architecture that reduces the number of external components. Two DC/DCs are capable of supplying up to 1100 mA of output current, while the third supports up to 1200 mA. All four LDO regulators are high performance, low-noise regulators capable of supplying up to 320 mA of output current.

Production
i
Product Data SheetRev G – 01/2020
Buy OnlineRequest a SampleContact Sales
Buy OnlineRequest a SampleContact Sales

Key Features

  • Up to 80% component count reduction vs. discrete solutions
  • Up to 50% solution price reduction
  • 2-4x higher reliability
  • 80% reduction in design effort
  • < 2 mW standby power
  • Integrated sequencing control: Pre-validated & programmable for Atmel processor solutions
  • Lowest noise for analog rails in noise sensitive applications
  • I2C™ serial interface

Typical Applications

  • IOT
  • POS
  • Wearables
  • Smartwatches
  • HMI
  • M2M
  • White Goods
  • Other PMU

Parameters

Application Processors
Atmel SAMA5D[31/33/34/35/36], SAM9G[15/25/35/45/46], SAM9X[25/35], SAM9M[10/11], SAM9N[11/12]
Battery Charger
ActivePath™
Regulated Outputs
7
Min Input Voltage (V)
2.7
Max Input Voltage (V)
5.5
Pin Count
40
Operating Junction Temperature (C)
-40 to 125
Buck Converters
4
Bucks Configurable as Load Switch
0
Boost Converters
0
Buck-Boost Converters
0
LDO Regulators
3
LDOs Configurable as Load Switch
0
Interface
I2C
Package Type
TQFN, 40-pin
Package Size (mm)
5.0 x 5.0
RoHS
Yes
Lead Free
Yes
Halogen Free
Yes
ITAR Restricted
No
ECCN
EAR99

Technical Documents

Filters
4 results found
All (4)
  • Product Data Sheet

    Rev G – 01/2020
    Data Sheet
  • I²C Protocol for programming the ACT8945A

    Rev 0 – 10/11/2013
    Application Note
  • Power Management ACTIVECiPS™ Modular Power PMICs Brochure

    06/22/2023
    Brochure
  • PCB Symbol, Footprint & 3D Model (provided by SamacSys)

    PCB Layout Files
Results per page
10

Design Resources

Filters
1 result found
All (1)
  • Evaluation Kit

    ACT8945A Evaluation Kit

    This EVK provides full access to the converter's input and output voltage, as well as all the digital control signals. This gives the user the flexibility to configure the EVK to match their real world system...

    Evaluation Kit
Results per page
10

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Need more support?

At Qorvo, our customers are a core part of what we do, and we want every experience you have with us to be as reliable as our products. If you have a question or if something isn't working the way you expect, please let us know.

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Engage with the Qorvo community, ask technical questions and share insights.

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© 2026 Qorvo US, Inc

|

+1-833-641-3810

/
Products
/
Power
/
Power Management ICs (PMICs)
/
ACT8945A

ACT8945A

Advanced PMIC for Atmel SAMA5Dx Series & SAM9 Series Processors

Qorvo's ACT8945A PMIC is a cost effective, highly efficient ActivePMU™ power management solution, optimized for the unique power, voltage sequencing, and control requirements of the Atmel SAMA5 and SAM9 based eMPU series processors. It is ideal for a wide range of high performance portable handheld applications such as smartwatches. wearables, POS terminals, tablet PCs, human-machine interfaces, control panels, smart grid infrastructures, network gateways, M2M systems, 2D barcode scanners, barcode printers, machine vision equipment, as well as home and commercial building automations, medical devices and white goods.

This device features three step-down DC/DC converters and four low-noise, low-dropout (LDO) regulators, along with a complete battery charging solution featuring ActivePath™ system-power selection function. The three DC/DC converters utilize a high efficiency, fixed-frequency (2 MHz), current-mode PWM control architecture that reduces the number of external components. Two DC/DCs are capable of supplying up to 1100 mA of output current, while the third supports up to 1200 mA. All four LDO regulators are high performance, low-noise regulators capable of supplying up to 320 mA of output current.

Production
i
Product Data SheetRev G – 01/2020
Buy OnlineRequest a SampleContact Sales
Buy OnlineRequest a SampleContact Sales

Key Features

  • Up to 80% component count reduction vs. discrete solutions
  • Up to 50% solution price reduction
  • 2-4x higher reliability
  • 80% reduction in design effort
  • < 2 mW standby power
  • Integrated sequencing control: Pre-validated & programmable for Atmel processor solutions
  • Lowest noise for analog rails in noise sensitive applications
  • I2C™ serial interface

Typical Applications

  • IOT
  • POS
  • Wearables
  • Smartwatches
  • HMI
  • M2M
  • White Goods
  • Other PMU

Parameters

Application Processors
Atmel SAMA5D[31/33/34/35/36], SAM9G[15/25/35/45/46], SAM9X[25/35], SAM9M[10/11], SAM9N[11/12]
Battery Charger
ActivePath™
Regulated Outputs
7
Min Input Voltage (V)
2.7
Max Input Voltage (V)
5.5
Pin Count
40
Operating Junction Temperature (C)
-40 to 125
Buck Converters
4
Bucks Configurable as Load Switch
0
Boost Converters
0
Buck-Boost Converters
0
LDO Regulators
3
LDOs Configurable as Load Switch
0
Interface
I2C
Package Type
TQFN, 40-pin
Package Size (mm)
5.0 x 5.0
RoHS
Yes
Lead Free
Yes
Halogen Free
Yes
ITAR Restricted
No
ECCN
EAR99

Technical Documents

Filters
4 results found
All (4)
  • Product Data Sheet

    Rev G – 01/2020
    Data Sheet
  • I²C Protocol for programming the ACT8945A

    Rev 0 – 10/11/2013
    Application Note
  • Power Management ACTIVECiPS™ Modular Power PMICs Brochure

    06/22/2023
    Brochure
  • PCB Symbol, Footprint & 3D Model (provided by SamacSys)

    PCB Layout Files
Results per page
10

Design Resources

Filters
1 result found
All (1)
  • Evaluation Kit

    ACT8945A Evaluation Kit

    This EVK provides full access to the converter's input and output voltage, as well as all the digital control signals. This gives the user the flexibility to configure the EVK to match their real world system...

    Evaluation Kit
Results per page
10

Related Solutions

Rack & Server Power

Rack & Server Power 

Servers

Servers 

Power Sources

Power Sources 

Garden & Power Tools

Garden & Power Tools 

Motherboard & GPU Modules

Motherboard & GPU Modules 

Networking

Networking 

Accessories

Accessories 

Solid State Drives

Solid State Drives 

Radar

Radar 

Need more support?

At Qorvo, our customers are a core part of what we do, and we want every experience you have with us to be as reliable as our products. If you have a question or if something isn't working the way you expect, please let us know.

Forum

Forum

Engage with the Qorvo community, ask technical questions and share insights.

Support

Support

Get technical, application or customer support plus updates on supply chain and FAQs.

Sales

Sales

Connect with our sales team to gain tailored solutions, expert guidance and access to the latest technologies.

Stay up to date with us.

Sign up for notification on new products, product/process change notifications (PCNs) and end of life (EOL) alerts.

Sign Up

Qorvo products are at work connecting, protecting and powering the planet. We bring core radio frequency (RF) and power technologies and solutions to automotive, consumer, defense & aerospace, industrial & enterprise, infrastructure and mobile markets.

Stay Connected

  • Facebook
  • X
  • LinkedIn
  • YouTube
  • Products
  • Solutions
  • Design Hub
  • New Products
  • Product Compliance
  • Blog Posts
  • Events & Trade Shows
  • News Releases
  • Success Stories
  • Technical Articles
  • About Us
  • Careers
  • Corporate Videos
  • Quality
  • Locations
  • Investors
  • How to Buy
  • Forums
  • Portals
  • Contact Us
  • Subscription Center
Site MapFeedbackLegalPrivacySupply Chain Transparency

© 2026 Qorvo US, Inc

|

+1-833-641-3810

Qorvo
  • Products
  • Solutions
  • Design Hub
  • Support
  • About Us
Qorvo
Qorvo
Qorvo
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  • Design Hub
  • Support
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