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Qorvo ACT41000 | Demoboard ACT41000EVK-104-REF01
Programmable Voltage, Programmable Current, Low Noise RFPoL Step-Down Voltage Regulator
Overview
| Topology | Buck Converter |
| Input voltage | 24-40 V |
| Output 1 | 22 V / 4 A |
| IC revision | 3.0 |
Description
ACT41000-104-REF01 reference design provides both the drain and gate voltages for many of Qorvo’s RF PAs. It automatically searches for and optimizes the optimal RF PA gate voltage to set the correct Idq bias current. This reference design demonstrates how Qorvo’s ACT41000 significantly simplifies RF PA system level design and cost. The design is specifically configured for the QPA2211, but it can be easily modified for many other RF PAs.This document describes the characteristics and operation of the Qorvo ACT41000EVK-104 REF01 reference design. It provides setup and operation instructions, schematic, layout, BOM, GUI, and test data. The design demonstrates the ACT41000QI104.E1T (22V) power management IC. Other ACT41000QIxxx options can be evaluated on this EVK by replacing the IC and any other necessary components. The initial design is optimized for the QPA2211.
Features
- 4.5 to 40 V operational input voltage
- Programmable output voltage by I2C from 3 to 24 V in 12.5 mV steps
- Programmable output current limit from 0 to 4 A in 256 steps
- Integrated current DAC for bias detection and automatic system level bias threshold trigger
- Fixed-frequency current mode control from 450 kHz - 2.25 MHz with external clock sync and 100% duty operation
- 5 V bias, 350 mA buck converter
- 20 mA AUX LDO programmable output 0.9 to 4.0 V
Typical applications
- RF PA (GaN/GaAs) Drain Bias / Power with IDQ Search, General Telecom and Industrial Power Supplies
- Telecom RF Modules, Radar Systems
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | Pins | PCB/Cable/Panel | Modularity | Type | Wire Section | L(µH) | IR(A) | ISAT(A) | RDC(mΩ) | fres(MHz) | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | RDC max.(mΩ) | Mount | C | VR(V (DC)) | Endurance(h) | IRIPPLE(mA) | ILeak(µA) | DF(%) | Pitch(mm) | Ø D(mm) | L(mm) | Packaging | H(mm) | Working Voltage(V (AC)) | Operating Temperature | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 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 | – | – | – | – | – | – | Pitch3.5 mm | – | Length7 mm | PackagingBox | – | Working Voltage130 V (AC) | Operating Temperature -30 °C up to +120 °C | ||||
 | 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 | – | – | – | – | – | – | Pitch2.54 mm | – | Length5.08 mm | PackagingBag | – | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C | |||
 | WE-LHMI SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LHMI SMT Power Inductor | – | – | – | – | – | Inductance6.8 µH | – | – | – | Self Resonant Frequency12 MHz | Performance Rated Current6.4 A | Saturation Current @ 10%8.5 A | Saturation Current @ 30%17.7 A | DC Resistance33.4 mΩ | MountSMT | – | – | – | – | – | – | – | – | Length9.7 mm | – | Height4 mm | – | Operating Temperature -40 °C up to +125 °C | ||||
 | WCAP-ATG8 Aluminum Electrolytic Capacitors, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-ATG8 Aluminum Electrolytic Capacitors | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Capacitance100 µF | Rated Voltage50 V (DC) | Endurance 2000 | Ripple Current286 mA | Leakage Current50 µA | Dissipation Factor10 % | Pitch3.5 mm | Diameter8 mm | Length11.5 mm | PackagingAmmopack | – | – | – | ||||
 | WE-LQS SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LQS SMT Power Inductor | – | – | – | – | – | Inductance22 µH | Rated Current1.11 A | Saturation Current0.7 A | DC Resistance200 mΩ | Self Resonant Frequency26 MHz | – | – | – | – | MountSMT | – | – | – | – | – | – | – | – | Length4 mm | – | Height2.5 mm | – | Operating Temperature -40 °C up to +125 °C | ||||
| WE-LQS SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LQS SMT Power Inductor | – | – | – | – | – | Inductance47 µH | Rated Current0.71 A | Saturation Current0.45 A | DC Resistance492 mΩ | Self Resonant Frequency15 MHz | – | – | – | – | MountSMT | – | – | – | – | – | – | – | – | Length4 mm | – | Height2.5 mm | – | Operating Temperature -40 °C up to +125 °C |