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Overview
| Topology | Buck Converter |
| Input voltage | 24-40 V |
| Output 1 | 22 V / 4 A |
| IC revision | 2.0 |
Description
Qorvo's ACT41000 is a programmable output, low noise, DC-to-DC buck converter with auxiliary bias supply regulators. This synchronous step-down voltage regulator supports a wide input voltage from 4.5 to 40 V and integrates both the high side and low side MOSFETS. These 50 m? RDSON transistors, driven by the optimized 5V self-biasing, enable high efficiency to reduce power losses.The product's main buck converter can be dynamically programed to an output voltage between 3 and 24 V in 12.5 mV steps via the I2C interface or analog feedback. It also can dynamically program output current between 0 and 4 A in 256 steps via the I2C interface in a constant-current (CC) operation mode. The main buck operates in a proprietary current mode control that supports external clock syncing for switching frequencies between 450 kHz and 2.25 MHz and spread-spectrum. ACT41000 has built-in iDAC for Bias Detection and automatic system level bias threshold trigger for PA Vdrain bias applications. The product also integrates a 5 V / 350 mA mini-buck converter and a 20 mA AUX LDO.ACT41000 is available in a 32-pin 5 mm x 5 mm QFN package with a power-optimized footprint and exposed pad for improved thermal performance.
Features
- 4.5 V to 40 V Operational Input Voltage
- Programmable Output with Factory Defaults
- Output Voltage: 3 V to 24 V in 12.5 mV Step
- Output Current (Limit): Up to 4 A in 15.6 mA Step
- 450 kHz to 2.25 MHz Fixed-Frequency Current-Mode, with External Clock Sync. and Spread-Spectrum
- 5 V / 350 mA Self-Bias Buck Converter with
- 20 mA AUX LDO, Programmable Output Voltage
- I2C Interface, Fast-mode Plus (Fm+, 1 MHz)
- Protections: UVLO, OVP, UVP (Hiccup/Latch-off), OCP, TSD
- Thermally Enhanced 5 mm × 5 mm QFN Package
- Automotive AEC-Q100 Options Available (Contact Qorvo for conditions of AEC-Q100 options.)
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
All technical functions in detail
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | Pins | PCB/Cable/Panel | Modularity | Type | Wire Section | C | Tol. C | VR(V (DC)) | Size | Operating Temperature | DF(%) | RISO | Ceramic Type | L(mm) | W(mm) | H(mm) | Fl(mm) | Packaging | L(µH) | IR(A) | ISAT(A) | RDC(mΩ) | fres(MHz) | IRP,40K(A) | ISAT,30%(A) | RDC typ.(mΩ) | RDC max.(mΩ) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-XHMI SMT Power Inductor, 2, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-XHMI SMT Power Inductor | Pins2 | – | – | – | – | – | – | – | Size8080 | Operating Temperature -40 °C up to +125 °C | – | – | – | Length8.8 mm | Width8.3 mm | Height7.8 mm | – | – | Inductance6.8 µH | Rated Current7.2 A | – | DC Resistance13 mΩ | Self Resonant Frequency22 MHz | Performance Rated Current10.55 A | Saturation Current @ 30%17.6 A | DC Resistance13 mΩ | DC Resistance14.3 mΩ | MountSMT | ||||
 | 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) | – | – | – | – | Operating Temperature -30 °C up to +120 °C | – | – | – | Length7 mm | – | – | – | PackagingBox | – | Rated Current10 A | – | – | – | – | – | – | – | MountTHT | ||||
| WCAP-CSGP MLCCs 10 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 10 V(DC) | – | – | – | – | – | Capacitance10 µF | Capacitance±20% | Rated Voltage10 V (DC) | Size0805 | Operating Temperature -55 °C up to +85 °C | Dissipation Factor10 % | Insulation Resistance0.01 GΩ | Ceramic TypeX5R Class II | Length2 mm | Width1.25 mm | Height1.25 mm | Pad Dimension0.5 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 16 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 16 V(DC) | – | – | – | – | – | Capacitance10 µF | Capacitance±20% | Rated Voltage16 V (DC) | Size0805 | Operating Temperature -55 °C up to +85 °C | Dissipation Factor10 % | Insulation Resistance0.01 GΩ | Ceramic TypeX5R Class II | Length2 mm | Width1.25 mm | Height1.25 mm | Pad Dimension0.5 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | |||||
 | WE-LQS SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LQS SMT Power Inductor | – | – | – | – | – | – | – | – | Size4025 | Operating Temperature -40 °C up to +125 °C | – | – | – | Length4 mm | Width4 mm | Height2.5 mm | – | – | Inductance47 µH | Rated Current0.71 A | Saturation Current0.45 A | DC Resistance492 mΩ | Self Resonant Frequency15 MHz | – | – | – | – | MountSMT |