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.
|Input Voltage(V)||4.5 to 40|
|Configurable Output Voltage(V)||3 to 24|
|Configurable Output Voltage Step Size(mV)||12.5|
|Configurable Output Current Max(A)||4|
|Configurable Output Current Step Size(mA)||15.6|
|Operation Frequency(kHz)||445 to 2,250|
|Features||Mini-buck: 350mA; LDO: 20mA; External Clock Sync; Spread-Spectrum; I2C;|
|Package Type||QFN, 32-pin|
|Package(mm)||5.0 x 5.0|
This document describes the characteristic and operation of the Qorvo ACT41000EVK-101.E1 evaluation kit (EVK). It provides setup and operation instructions, schematic, layout, BOM, and test data.
To communicate with the ACT41000EVK-101.E1 a USB Dongle and a Graphical User Interface (GUI) is provided.
This EVK demonstrates the ACT41000-101.E1 power management IC, which has a 5V default output voltage.
This document describes the characteristic and operation of the Qorvo ACT41000EVK-104.E1 evaluation kit (EVK). It provides setup and operation instructions, schematic, layout, BOM, and test data.
To communicate with the ACT41000EVK-104.E1 a USB Dongle and a Graphical User Interface (GUI) is provided.
This EVK demonstrates the ACT41000-104.E1T power management IC, which has a 22V default output voltage. It is directly compatible with Qorvo’s QPA2211 GaN Ka-band RF power amplifier as well as many other Qorvo products with similar output voltages.
The ACT41000 Graphical User Interface (GUI) is packaged in a ZIP file that includes the software and all necessary drivers to communicate with the ACT41000 Evaluation Tool, as well as all descriptions how to use the tool.