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Overview
| Topology | Buck Converter |
| Input voltage | 4-5.8 V |
| Switching frequency | 1500-3300 kHz |
| Output 1 | 0.4 A |
| Output 2 | 0.4 A |
| IC revision | B |
Description
The 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 stand by 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 users 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 buckboost regulator and the fourth is a high voltage step-up boost regulator capable of providing up to 20V. Each regulator can be configured for a wide range of output voltages through the I2C interface.The ACT81461 is highly configurable. It offers configurable power sequencing combinations, startup timing, output voltage settings, fault monitoring,interrupt control, programmable GPIO options,and many more features. The device is pre-configured at the factory with default configuration settings that can be further adjusted though firmware via the standard I2C interface to suit individual system requirements. The IC also features the ability to sequence external power supply rails as part of the power up sequence by using GPIOs.The ACT81461 PMIC is available in a 3.33mm x 3.28mm, 49 ball WLCSP package
Features
- Wide Input Voltage Range
- 4V to 5.5V Input with 20V Protection
- 2.7V to 4.5V Battery Range
- Complete Integrated Power Solution
- Two 0.4A DC/DC Step-Down (Buck) Regulators
- One 0.4A Buck-Boost Regulator
- Three 100mA LDOs
- Three 100mA Load Switches
- One High Voltage Boost – 20V
- 38mA Constant Current Sink LED Drive
- 0.8A Linear Charger
- Optimized Power for Portable Applications
- Active Power-Path Linear Charger (APLC)
- Multiple Sleep Modes
- Active-COT for Very Low Quiescent Current
- 6μA Quiescent Current with 6 regulators and 3 load switches running
- Space Savings
- Fully Integrated
- Maximum Fsw = 3MHz for small size
- Integrated Sequencing
- Easy System Level Design
- Configurable Sequencing
- Seamless Sequencing with External Supplies
- Programmable Reset and Power Good GPIOs
- Easy System Interface and Monitoring
- Four General Purpose I/O (4 X GPIOs)
- I2C Serial Interface
- Reset and Power Sequencing Control
- Interrupt Controller and fault monitoring
- Two configurable low power modes – SLEEP &DPSLP mode.
- Watchdog Supervision
- Hard/Soft Reset Functions
- PWREN Power Enable Startup.
- Highly Configurable
- uP interface for status and report and controllability
- Flexible Sequencing and Fault Thresholds
- Programmable GPIO Functions
- GPIO/LED Current Sinks
- PWREN Power Enable Functionality
- Contact Qorvo for Push Button Mode Startup
Typical applications
- IOT Modules
- Cameras & DVRs, Consumer or medical wearables
- Battery operated personal devices
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | Pins | PCB/Cable/Panel | Modularity | Type | Wire Section | λDom typ.(nm) | Emitting Color | λPeak typ.(nm) | IV typ.(mcd) | VF typ.(V) | Chip Technology | 2θ50% typ.(°) | L(µH) | IR(A) | ISAT1(A) | ISAT2(A) | RDC max.(mΩ) | fres(MHz) | Mount | L(mm) | Working Voltage(V (AC)) | Operating Temperature | Color | Gender | Packaging | H(mm) | Operation Force(g) | Electrical Life(Cycles) | Actuator Color | Washable | Vaporphase process | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WR-PHD Jumper, 1, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Jumper | Pins1 | – | – | – | – | – | – | – | – | – | – | – | – | Rated Current3 A | – | – | – | – | – | Length2.44 mm | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +125 °C | ColorBlack | GenderJumper | PackagingBag | – | – | – | – | – | – | |||
 | WR-TBL Series 2141S - 3.50 mm Horizontal Entry Modular w. Rising Cage Clamp, 2, Rising Cage Clamp | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Pins2 | PCB/Cable/PanelPCB | ModularityYes | TypeHorizontal | Wire Section 30 to 16 (AWG) 0.05 to 1.31 (mm²) | – | – | – | – | – | – | – | – | Rated Current10 A | – | – | – | – | MountTHT | Length7 mm | Working Voltage130 V (AC) | Operating Temperature -30 °C up to +120 °C | – | – | PackagingBox | – | – | – | – | – | – | ||||
 | WE-PMCI Power Molded Chip Inductor, 2, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PMCI Power Molded Chip Inductor | Pins2 | – | – | – | – | – | – | – | – | – | – | – | Inductance2.2 µH | Rated Current2 A | Saturation Current 11.2 A | Saturation Current 22.4 A | DC Resistance190 mΩ | Self Resonant Frequency45 MHz | MountSMT | Length2 mm | – | Operating Temperature -40 °C up to +125 °C | – | – | – | Height1 mm | – | – | – | – | – | ||||
 | WE-PMCI Power Molded Chip Inductor, 2, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PMCI Power Molded Chip Inductor | Pins2 | – | – | – | – | – | – | – | – | – | – | – | Inductance1 µH | Rated Current6.2 A | Saturation Current 13.25 A | Saturation Current 26.95 A | DC Resistance35 mΩ | Self Resonant Frequency60 MHz | MountSMT | Length3.2 mm | – | Operating Temperature -40 °C up to +125 °C | – | – | – | Height1.2 mm | – | – | – | – | – | ||||
| WE-PMCI Power Molded Chip Inductor, 2, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PMCI Power Molded Chip Inductor | Pins2 | – | – | – | – | – | – | – | – | – | – | – | Inductance2.2 µH | Rated Current3.65 A | Saturation Current 12.25 A | Saturation Current 24.8 A | DC Resistance75 mΩ | Self Resonant Frequency35 MHz | MountSMT | Length3.2 mm | – | Operating Temperature -40 °C up to +125 °C | – | – | – | Height1.2 mm | – | – | – | – | – | ||||
 | WR-PHD Pin Header - Single, 2, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | Pins2 | – | – | TypeStraight | – | – | – | – | – | – | – | – | – | Rated Current3 A | – | – | – | – | MountTHT | Length5.08 mm | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C | – | GenderPin Header | PackagingBag | – | – | – | – | – | – | |||
 | WR-PHD Pin Header - Single, 3, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | Pins3 | – | – | TypeStraight | – | – | – | – | – | – | – | – | – | Rated Current3 A | – | – | – | – | MountTHT | Length7.62 mm | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C | – | GenderPin Header | PackagingBag | – | – | – | – | – | – | |||
 | WR-PHD Pin Header - Single, 4, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | Pins4 | – | – | TypeStraight | – | – | – | – | – | – | – | – | – | Rated Current3 A | – | – | – | – | MountTHT | Length10.16 mm | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C | – | GenderPin Header | PackagingBag | – | – | – | – | – | – | |||
 | WL-SMCW SMT Mono-color Chip LED Waterclear, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear | – | – | – | – | – | Dominant Wavelength [typ.]570 nm | Emitting ColorBright Green | Peak Wavelength [typ.]572 nm | Luminous Intensity [typ.]40 mcd | Forward Voltage [typ.]2 V | Chip TechnologyAlInGaP | Viewing Angle Phi 0° [typ.]140 ° | – | – | – | – | – | – | MountSMT | Length1.6 mm | – | Operating Temperature -40 °C up to +85 °C | – | – | PackagingTape and Reel | Height0.7 mm | – | – | – | – | – | ||||
 | WS-TASV J-Bend SMT Washable Tact Switch 6x6 mm, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWS-TASV J-Bend SMT Washable Tact Switch 6x6 mm | – | – | – | – | – | – | – | – | – | – | – | – | – | Rated Current0.05 A | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +85 °C | – | – | PackagingTape and Reel | Height2.5 mm | Operation Force360 g | Electrical Life200000 Cycles | Actuator ColorSalmon | WashableYes | Vaporphase processnot specified |