ACT81461

    Low Power PMIC With Integrated Linear Charger+ PWREN function

    Key Features

    • 4 to 5.5 V input with 20 V protection
    • 0.8 A linear charger
    • 4 high efficiency DC/DC converters
    • 3 LDOs
    • 3 load switches
    • 4 configurable GPIOs
    • I2C serial interface
    • Reset and power sequencing
    • Minimal external components
    • 2 low power modes

    Qorvo's ACT81461 is a low power PMIC (Power Management Integrated Circuit) that is specifically designed for battery operated systems and is suitable for a variety of processor applications. It features very low standby current that prolongs battery life between charges, especially in applications requiring long standby or low power mode durations. It is a highly efficient PMIC that also enhances battery run-time during normal operating modes. The number of regulators that can be turned off or left on during low power modes is configurable and offers flexibility to optimize system efficiency.

    The IC includes four DC/DC converters with integrated power FETs, three low-dropout regulators (LDOs), and three load switches. Two of the DC/DC converters are step-down buck regulators, one is a step up/down buck-boost regulator and the fourth is a high voltage step-up boost regulator capable of providing up to 20 V. Each regulator can be configured for a wide range of output voltages through the I2C interface. The ACT81461 is identical to the ACT81460 with the difference being that the ACT81461 supports the PWREN function.

    ACT81461 is available in a 3.3 x 3.3 mm 49 ball WLCSP package with optimized pinout for easy PCB routing.

    Typical Applications

      • Consumer or medical wearables
      • Battery operated personal devices
      • IOT Modules
      • Cameras & DVRs
    Application Processors General purpose / wearable and IoT processors
    Battery Charger ActivePath™
    Buck Converters 2
    Bucks Configurable as Load Switch 0
    Boost Converters 1
    Buck-Boost Converters 1
    LDO Regulators 3
    LDOs Configurable as Load Switch 3
    Interface I2C
    Package Type CSP, 49-pin
    Package(mm) 3.3 x 3.3
    RoHS Yes
    Lead Free Yes
    Halogen Free Yes
    ITAR Restricted No
    ECCN EAR99

    ACT81461EVK1-101ACT81461EVK1-101 Evaluation Kit

    ACT81461EVK1-101 Evaluation Tool User's Guide

    The Evaluation Tool Users Guide describes the characteristics and operation of the Qorvo ACT81461EVK1-101 evaluation kit (EVK). It provides setup and operation instructions, schematic, layout, BOM, and test data.

    To communicate with the EVK a USB Dongle and a Graphical User Interface (GUI) is provided.

    This EVK demonstrates the ACT81461 ActivePMU power management IC.

    ACT81461 Altium Layout Files

    ACT81461 GUIACT81461 GUI

    The ACT81461 GUI is a graphical interface that gives the user access to the ACT81461 internal registers. It is specifically designed for use with the ACT81461 EVK. The GUI allows the user to both read and modify the registers to configure the ACT81461-EVK specifically for the desired operating conditions. Note that GUI communication with the ACT81461 EVK requires the Qorvo USB-TO-I²C dongle.