Analog Devices Inc. DC2283A

Overview

DC2283A from Analog Devices (formerly Linear Technology) is a demonstration board for the LTC3884 dual-output polyphase synchronous buck controller, configured as a high-density 160A single-output DC/DC converter with 7V–14V input and 0.5V–1.5V adjustable output. It integrates digital power system management via PMBus/I²C, ultra-low DCR current sensing, and real-time telemetry for voltage, current, temperature, and fault status - used in high-performance server VRMs and AI accelerator power delivery.

For engineers reviewing the DC2283A datasheet, DC2283A pinout, DC2283A application, or DC2283A equivalent, this page provides verified functional context, performance boundaries (e.g., 89.6% typical efficiency at 12V_IN/1V_OUT/160A), thermal behavior under no airflow, and guidance on configuring dual-output mode or leveraging LTpowerPlay™ for live register tuning and NVM storage.

Technical Context

DC2283A implements a four-phase interleaved synchronous buck topology using the LTC3884EUK controller and eight Infineon BSG0811ND OptiMOS MOSFETs per phase. It supports both single-output (160A max, VOUT1 only) and dual-output (40A + 120A) configurations via shunt resistor selection and jumper settings (JP1–JP5, SW1/SW2).

The board uses ultra-low-DCR current sensing with 0.002Ω sense resistors (R1/R129), 425kHz default switching frequency, and integrated telemetry monitoring via LTC3884's internal ADCs and SMBus interface. Power sequencing, margining, OV/UV protection, and fault logging are fully configurable through LTpowerPlay™ using the DC1613A dongle.

Key Specifications

Availability

DC2283A is available at Aetrix Electronics and suitable for high-current server VRM validation, AI/ML accelerator power subsystem testing, and telecom rectifier evaluation requiring stable component supply and traceable engineering support.

Supply support for DC2283A includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices acquired Linear Technology in 2017 and maintains full technical and manufacturing continuity for its high-performance power management portfolio.

The DC2283A belongs to Linear's demonstration circuit series designed specifically to accelerate evaluation of digitally managed multiphase buck controllers in datacenter, networking, and high-end computing applications.

FAQ

What is the primary function of the DC2283A demonstration board?

The DC2283A demonstration board is a fully assembled, tested hardware platform for evaluating the LTC3884 dual-output polyphase synchronous buck controller. It delivers up to 160A at 0.5V–1.5V from a 7V–14V input and demonstrates digital power system management features including real-time telemetry, programmable sequencing, and fault logging - all accessible via LTpowerPlay™ software and the DC1613A dongle. The DC2283A enables rapid validation of high-current VRM designs without custom PCB development.

Can the DC2283A be configured for dual-output operation?

Yes, the DC2283A can be configured as a dual-output converter delivering up to 40A on VOUT0 and 120A on VOUT1. This requires removing the default 0Ω shunt resistors between VOUT0 and VOUT1 and reconfiguring jumpers JP1–JP5 and switches SW1/SW2 per the demo manual. Contact Analog Devices' factory support for detailed dual-output setup instructions, as the default configuration is single-output only.

What software and hardware are required to access DC2283A's digital power management features?

To access the DC2283A's full digital power management capabilities, you need the LTpowerPlay™ GUI software (downloadable from analog.com/ltpowerplay) and the DC1613A USB-to-SMBus dongle. The DC2283A communicates over I²C/SMBus/PMBus; the dongle bridges the PC's USB port to the board's bus interface. No additional firmware or drivers are required - LTpowerPlay automatically detects the DC2283A and reads RAM/NVM configuration upon connection.

How does the DC2283A achieve accurate current measurement at 160A?

The DC2283A achieves accurate high-current measurement using ultra-low-DCR sensing with 0.002Ω precision shunt resistors (R1 and R129) placed in the input path, combined with the LTC3884's dedicated IIN+ and IIN− pins and internal 12-bit ADC. This method avoids power loss and thermal drift associated with high-value sense resistors, enabling ±1.5% current measurement accuracy across the full 0–160A range without external amplification.

Is the DC2283A compatible with other Linear/Analog Devices digital power controllers?

The DC2283A is specifically designed for the LTC3884EUK controller and is not mechanically or electrically compatible with other controllers such as the LTC3880, LTC3883, or LTM4676. While LTpowerPlay™ supports those parts, their pinouts, power stages, and telemetry registers differ significantly. Substituting the LTC3884 on the DC2283A is not supported; the board layout, component selection, and firmware are tightly coupled to the LTC3884's architecture.