Блог компании ADI SCP-LT8604C-BEVALZ High Efficiency 42V 100mA Synchronous Buck Signal Chain Evaluation Board

ADI SCP-LT8604C-BEVALZ High Efficiency 42V 100mA Synchronous Buck Signal Chain Evaluation Board

Shenzhen Mingjiada Electronics Co., Ltd. is a specialist distributor of electronic components, providing comprehensive support ranging from core chips to complete development tools. Its stocked SCP-LT8604C-BEVALZ high-efficiency 42V, 100mA synchronous buck signal chain evaluation board serves as an invaluable tool for engineers to rapidly construct and validate high-performance power solutions.

【SCP-LT8604C-BEVALZ Evaluation Board Overview】

The SCP-LT8604C-BEVALZ is a high-efficiency, wide-input-range synchronous buck regulator evaluation board specifically optimised for signal chain applications. Its core advantage lies in combining high efficiency with low noise characteristics, meeting the stringent demands of precision signal processing systems.

The SCP-LT8604C-BEVALZ evaluation board is based on the LT8604C regulator design, which maintains high efficiency across diverse operating conditions. Notably, it achieves over 90% efficiency under typical conditions of 50mA output at 12V input to 5V output.

The input voltage range spans from 3.2V to 42V, accommodating diverse power environments in automotive electronics, industrial control, and similar sectors. The output voltage is resistor-adjustable from 0.8V to 34V, with a default setting of 5V. Maximum output current reaches 120mA, sufficiently meeting the power requirements of most precision signal chain systems.

【SCP-LT8604C-BEVALZ Core Features】

The SCP-LT8604C-BEVALZ evaluation board is a demonstration circuit focused on low-power signal chain power solutions. Its core lies in integrating the high-performance LT8604C synchronous buck regulator, featuring multiple electrical characteristics optimised for demanding applications:

Wide Input, High Compatibility: The SCP-LT8604C-BEVALZ board supports a broad input voltage range from 3.2V to 42V. This capability enables seamless operation with common industrial automation, automotive electronics, and telecommunications base station power buses operating at 24V, 36V, or higher voltages, while also maintaining compatibility with standard 12V or lower battery-powered systems. The wide input design additionally supports reverse power supply functionality, offering enhanced flexibility for system design.

Precision Adjustable, Default Stable: The SCP-LT8604C-BEVALZ's output voltage can be flexibly adjusted via an external resistor within the 0.8V to 34V range, with a default setting of the commonly used 5V output. This design allows engineers to rapidly obtain a standard operating voltage while enabling fine-tuning to meet the specific power requirements of components such as ADCs, operational amplifiers, and sensors.

High-efficiency synchronous operation, space-saving: As a synchronous buck regulator, the SCP-LT8604C-BEVALZ integrates both high-side and low-side MOSFETs. Compared to traditional asynchronous solutions, this significantly enhances conversion efficiency and reduces thermal losses. Its default switching frequency reaches 2.0 MHz, adjustable up to 2.2 MHz. Higher switching frequencies permit the use of smaller inductors and capacitors, which is crucial for space-constrained applications such as portable instruments and distributed sensor nodes.

Optimised for Signal Chain Applications: The SCP-LT8604C-BEVALZ board incorporates VIOC (Voltage Input/Output Control) functionality, enabling seamless integration with downstream linear regulators (LDOs) to further refine power delivery purity. This proves vital when powering noise-sensitive analogue components such as precision amplifiers and high-speed data converters.

【SCP-LT8604C-BEVALZ Evaluation Board Platform Value】

The true strength of the SCP-LT8604C-BEVALZ lies not in its isolation as a standalone module, but in its role as a key component within ADI's Signal Chain Power (SCP) hardware evaluation platform. This platform-based approach delivers a revolutionary design experience for engineers:

Plug-and-play, rapid prototyping: Employing a modular design with standardised inter-board connectors, the platform allows engineers to assemble components like building blocks. This includes input filter boards (SCP-INPUT-EVALZ), output distribution boards (SCP-1X5BKOUT-EVALZ), pass-through boards (SCP-THRUBRD-EVALZ), and various power supply boards featuring different topologies (boost, buck, LDO, etc.). This enables engineers to swap different power solutions within seconds for comparative testing and noise optimisation, significantly accelerating the prototyping phase.

Software-enabled, intelligent configuration: To fully realise the hardware's potential, ADI provides dedicated SCP Configurator software. This tool assists designers in intuitively selecting suitable SCP boards based on system requirements (input voltage, output voltage, current, topology, etc.), generating complete schematics, bills of materials (BOM), and PCB layout references. It systematises and tools the expertise of power management design.

Lowering Barriers, Sharing Knowledge: The core design philosophy of the SCP platform encapsulates complex power management expertise into user-friendly hardware modules and software tools. This enables signal chain system engineers to rapidly build high-performance, low-noise power solutions even without deep power expertise, allowing them to focus on core signal processing algorithms and system integration.

【SCP-LT8604C-BEVALZ Technical Innovations】

The SCP-LT8604C-BEVALZ evaluation board introduces several key technical innovations. Its adjustable switching frequency design permits users to set operating frequencies between 200kHz and 2.2MHz according to specific application requirements, with a default switching frequency of 2.0MHz. This flexibility enables engineers to optimise the balance between efficiency and noise performance.

The SCP-LT8604C-BEVALZ evaluation board supports VIOC (Voltage Input Output Control) functionality, enabling seamless integration with downstream LDO regulators. By tracking the LDO's minimum input voltage requirement, VIOC dynamically adjusts the upstream switching regulator's output voltage. This significantly enhances overall power supply efficiency while maintaining the LDO's high PSRR (Power Supply Rejection Ratio) performance.

The board design accommodates practical debugging requirements, featuring oversized 0805 pads around critical adjustable components (such as feedback resistors, compensation networks, and frequency-setting elements) to facilitate parameter tuning and performance optimisation.

【SCP-LT8604C-BEVALZ Typical Application Scenarios】

Leveraging its high performance and platform-based characteristics, the SCP-LT8604C-BEVALZ evaluation board and its associated SCP platform are ideally suited for R&D and validation work in the following domains:

Industrial Automation and Test & Measurement: Providing clean, stable multi-channel power rails for multi-channel ADCs, precision operational amplifiers, and MEMS sensors within high-precision data acquisition systems.

Communications Infrastructure: Powers RF front-end modules such as low-noise amplifiers, mixers, and frequency synthesizers in 5G base stations and optical networking equipment, ensuring signal integrity.

Automotive electronics: Develop prototypes for automotive sensors, infotainment systems, or control units compliant with automotive standards. Its wide input voltage range accommodates the complex operating conditions of automotive batteries.

Medical and scientific instruments: Deliver ultra-low-noise power for weak signal conditioning circuits in portable medical devices and laboratory analysers, such as photodetectors and bioelectric signal acquisition systems.

Mingjiada Electronics maintains long-term supply of other ADI evaluation board components, including but not limited to the following models:

AD9154-FMC-EBZ

AD9163-FMCC-EBZ

AD9166-FMC-EBZ

AD9174-FMC-EBZ

AD9176-FMC-EBZ

AD9249-65EBZ

AD9250-250EBZ

AD9652-310EBZ

AD9680-1000EBZ

AD9694-500EBZ

EVAL-AD2S1210SDZ

EVAL-AD4696FMCZ

EVAL-AD5933EBZ

EVAL-AD5940BIOZ

EVAL-AD5940ELCZ