ACT8865EVK1-305 Development Boards, Kits, Programmers

Series:	ActivePMU™
Part Status:	Active
Main Purpose:	DC/DC, Step Down with LDO
Outputs and Type:	7, Non-Isolated
Voltage - Output:	0.6V, 0.6V, 0.6V, 0.6V, 1.2V, 1.8V, 3.3V
Current - Output:	1.3A, 1.15A, 1.15A, 320mA, 320mA, 320mA, 320mA
Voltage - Input:	2.7 V ~ 5.5 V
Regulator Topology:	Buck
Frequency - Switching:	2MHz
Board Type:	Fully Populated
Supplied Contents:	Board(s)
Utilized IC / Part:	ACT8865

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<p>The ACT8865EVK1-305 Evaluation Board from Analog Devices Inc. (ADI) is a four channel synchronous DC/DC buck switching regulator solution that enables engineers to effectively evaluate, develop, and debug a range of power management architectures, from complex distributed systems requiring multiple polarity and low noise management, to single point mobile and consumer power solutions. The ACT8865EVK1-305 uses the latest technology from ADI, the ACT8865, a 4-phase buck-boost switching regulator and one of the most innovative products available on the market for AC/DC and DC/DC applications.</p><p>The AT8865 is a 4-phase synchronous DC/DC buck switching regulator solution with an integrated high-side switch, gate drivers and advanced digital features such as fault protection, over-voltage protection, and an on-chip monitoring channel. The buck-boost switching topology is excellent for both AC/DC and DC/DC applications, since it allows the regulator to properly regulate voltage in both buck and boost conditions while exhibiting a high power conversion efficiency and low output noise. The ACT8865EVK1-305 evaluation board is an excellent choice for evaluating the performance and features of the AT8865 device. </p><p>The evaluation board is designed for an input voltage range of 4.5V to 15V and is capable of delivering up four regulated outputs with a minimum output of 0.8V and a maximum of 4.2V. The AT8865 has an advanced Enhanced Dithering-Mode capable of remaining in the transition between buck and boost mode even when large input transients occur, thus providing improved noise performance and improved power conversion efficiency. The AT8865 also features external digital programming via its SPI interface, allowing for flexible control and monitoring of the system parameters.</p><p>The operating principle behind the ACT8865EVK1-305 Evaluation Board is quite simple. It uses a PWM feedback loop to control an output voltage in order to keep it in the range of 0.8V-4.2V. The output voltage is regulated using an internal power MOSFET switch, which works by switching on and off to regulate the current. The ON/OFF state is determined by the PWM feedback loop and is optimized to maintain the required output voltage and amperage. The output current is also regulated in order to maintain a constant voltage and current across the load.</p><p>The ACT8865EVK1-305 is an excellent choice for application fields such as automotive, consumer, mobile, industrial and medical. It provides designers with the perfect platform for testing, developing, and debugging high-performance DC/DC solutions. The device’s integrated buck-boost switching regulator and digital control features enable the implementation of reliable, efficient and noise-free switch mode power supply (SMPS) applications.</p> <p>The ACT8865EVK1-305 Evaluation Board from ADI is an ideal stackable platform for evaluating, developing, and debugging a wide range of DC/DC switching regulator solutions. Its easy-to-configure power management features, regulation capability, buck-boost switching topology, and high power conversion efficiency make it an excellent choice for AC/DC and DC/DC applications.</p>

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