Analog Devices Inc. DC2672A-B

Overview

DC2672A-B from Analog Devices is a demonstration board for the LTM4664EY µModule regulator, implementing a non-isolated, dual-phase, single-output 48V-input DC/DC converter delivering up to 50A at 0.5–1.5V output. It integrates digital power system management via PMBus/I²C, supports default operation without host communication, and enables full telemetry (voltage, current, temperature, fault status) and real-time reconfiguration using LTpowerPlay GUI with DC1613A dongle.

For engineers reviewing the DC2672A-B datasheet, DC2672A-B pinout, DC2672A-B application, or DC2672A-B equivalent, this page provides verified technical context, key specifications, availability details, manufacturer background, and targeted FAQs - all focused on rapid evaluation of high-density 48V POL conversion with digital management in telecom, server, and industrial power systems.

Technical Context

The DC2672A-B implements the LTM4664EY in single-output mode, configured as a dual-phase 50A buck converter with 30V–58V input range and default 1.0V ±0.5% output. It uses external configuration resistors for startup settings and supports full PMBus-based control including VOUT command, margining, OV/UV limits, thermal fault thresholds, sequencing, and GPIO programming.

Board-level features include dual 25A phase interleaving, integrated telemetry sensing (current sense resistors RS1/RS3), ALERTB and FAULTB signaling, SHARE_CLK synchronization, and support for dynamic load testing via onboard pulse generator circuitry. The design targets high-efficiency point-of-load regulation with 87.1% typical efficiency at 48V_IN/1.0V_OUT/50A.

Key Specifications

Availability

DC2672A-B is available at Aetrix Electronics and suitable for telecom infrastructure, AI accelerator power delivery, high-performance computing rack PSUs, and industrial 48V DC distribution systems requiring stable component supply and rapid power architecture validation.

Supply support for DC2672A-B 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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving precision instrumentation, industrial automation, communications, and power management markets.

The DC2672A-B belongs to Analog Devices' µModule regulator demonstration platform family, designed specifically to accelerate evaluation and adoption of digitally managed, high-current, high-density DC/DC solutions for next-generation 48V point-of-load applications.

FAQ

What is the primary function of the DC2672A-B demonstration board?

The DC2672A-B is a fully assembled evaluation platform for the LTM4664EY µModule regulator. Its primary function is to enable rapid hardware validation and software configuration of a 48V-input, dual-phase, 50A single-output DC/DC converter with integrated PMBus-based digital power system management. It ships pre-configured to deliver 1.0V at up to 50A without host communication, allowing immediate bench testing before advanced feature exploration via LTpowerPlay.

Does the DC2672A-B require external software to operate?

No - the DC2672A-B powers up autonomously using on-board configuration resistors and delivers regulated 1.0V output without any external software or communication interface. However, to access digital power system management features (real-time voltage adjustment, telemetry monitoring, fault logging, sequencing setup), the LTpowerPlay GUI software and DC1613A USB-to-PMBus dongle are required. These tools are freely downloadable from Analog Devices.

What input voltage range does the DC2672A-B support, and what is its maximum output current?

The DC2672A-B supports an input voltage range of 30V to 58V and delivers up to 50A of continuous output current at 0.5V–1.5V output. This rating is confirmed in the demo manual's Performance Summary table and validated by thermal imaging (Figure 8) and efficiency curves (Figure 5) at 48V_IN/1.0V_OUT/50A. Operation outside the specified input range may damage the LTM4664EY or cause undefined behavior.

Can the DC2672A-B be used to evaluate multi-rail power systems?

The DC2672A-B is configured as a single-output, dual-phase 50A regulator and does not natively support multiple independent output rails. While it includes auxiliary circuits (e.g., LT1761ES5-SD LDO, LTC6992 oscillator), these serve board-level functions like bias generation and dynamic load pulsing - not customer-facing secondary outputs. For multi-rail evaluation, Analog Devices offers other demo boards such as DC2954A series (dual or quad LTM4664s) or separate LTM46xx-based platforms targeting distinct voltage domains.

How is telemetry data (voltage, current, temperature) accessed on the DC2672A-B?

Telemetry data on the DC2672A-B is accessed exclusively via the PMBus interface using the LTpowerPlay GUI and DC1613A dongle. The LTM4664EY reports real-time VOUT, IOUT, and internal die temperature through standard PMBus commands (READ_VOUT, READ_IOUT, READ_TEMPERATURE_1). Current sensing uses precision shunt resistors RS1 (0.002Ω) and RS3 (0.01Ω), and temperature is measured via the IC's internal sensor - all values are readable, loggable, and displayable in LTpowerPlay's telemetry dashboard.