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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 | Product series | Pins | Application | 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) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 74439358068 | SPEC | 8 files | WE-XHMI SMT Power Inductor | 2 | – | – | – | – | – | – | – | – | 8080 | -40 °C up to +125 °C | – | – | – | 8.8 | 8.3 | 8 | – | – | 6.8 | 7.2 | 15 | 13 | 22 | 10.55 | 17.6 | SMT | ||
 | 691214110002S | SPEC | – | 6 files | WR-TBL Series 2141S - 3.50 mm Horizontal Entry Modular w. Rising Cage Clamp | 2 | Rising Cage Clamp | PCB | Yes | Horizontal | 30 to 16 (AWG) 0.05 to 1.31 (mm²) | – | – | – | – | -30 °C up to +120 °C | – | – | – | 7 | – | – | – | Box | – | 10 | – | – | – | – | – | THT | |
 | 885012107010 | SPEC | 8 files | WCAP-CSGP MLCCs 10 V(DC) | – | – | – | – | – | – | 10 µF | ±20% | 10 | 0805 | -55 °C up to +85 °C | 10 | 0.01 GΩ | X5R Class II | 2 | 1.25 | 1.25 | 0.5 | 7" Tape & Reel | – | – | – | – | – | – | – | – | ||
| 885012107014 | SPEC | 8 files | WCAP-CSGP MLCCs 16 V(DC) | – | – | – | – | – | – | 10 µF | ±20% | 16 | 0805 | -55 °C up to +85 °C | 10 | 0.01 GΩ | X5R Class II | 2 | 1.25 | 1.25 | 0.5 | 7" Tape & Reel | – | – | – | – | – | – | – | – | ||
 | 74404043470A | SPEC | 8 files | WE-LQS SMT Power Inductor | – | – | – | – | – | – | – | – | – | 4025 | -40 °C up to +125 °C | – | – | – | 4 | 4 | 2.5 | – | – | 47 | 0.71 | 0.45 | 492 | 15 | – | – | SMT |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 74439358068 | SPEC | |
| 691214110002S | SPEC | – |
| 885012107010 | SPEC | |
| 885012107014 | SPEC | |
| 74404043470A | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Product series | Pins | Application | 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) | Mount | Samples |
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