Analog Devices Inc. DC1375B

Overview

DC1375B from Analog Devices (formerly Linear Technology) is a dual-output µModule® regulator evaluation board for the LTM4616, enabling rapid validation of 2×8A or single 16A point-of-load DC/DC conversion. It supports input voltages from 2.7V to 5.5V, delivers output voltages from 0.6V to 5V per channel, and features onboard tracking, margining, synchronization, and spread-spectrum modulation - used in telecom baseband cards and high-density FPGA power delivery.

For engineers reviewing the DC1375B datasheet, DC1375B pinout, DC1375B application, or DC1375B equivalent, this page provides verified layout guidance, thermal performance data, jumper-configurable Burst Mode® vs forced continuous operation, and confirmed compatibility with LTM4616 LGA and BGA variants across –40°C to 125°C operation.

Technical Context

The DC1375B implements the full reference design for the LTM4616 dual 8A µModule regulator, including all required input/output bulk capacitors (100µF ceramic + 470µF POSCAP), precision feedback resistors, and thermal vias aligned to the 15mm × 15mm LGA footprint. It exposes all control pins - RUN, MODE, TRACK, MGN, BSEL, CLKIN, PHMODE, PLLLPF - via test points and solder jumpers.

It supports dual independent outputs (VOUT1/VOUT2), 2-phase single-output mode (16A), voltage tracking, ±5% to ±15% programmable margining, external frequency synchronization (0.75–2.25MHz), and spread-spectrum noise reduction. The board uses a 4-layer 95mm × 76mm PCB with internal copper planes optimized for θ_JA = 10.5°C/W and bottom-side thermal conduction.

Key Specifications

Availability

DC1375B is available at Aetrix Electronics and suitable for telecom infrastructure, industrial FPGA power systems, and battery-backed networking equipment requiring stable component supply and fast prototyping turnaround.

Supply support for DC1375B 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) designs high-performance analog, mixed-signal, and power management ICs for precision signal chain and power applications.

The DC1375B belongs to Analog Devices' µModule® Evaluation Board product line, engineered to accelerate development of compact, thermally robust, multi-rail power systems for space-constrained digital loads like ASICs, FPGAs, and DSPs.

FAQ

What is the DC1375B used for?

The DC1375B is an official Analog Devices evaluation board for the LTM4616 dual 8A µModule regulator. It enables hardware validation of dual-output or single 16A configurations, verification of tracking/margining/synchronization features, thermal profiling, and pre-compliance testing before custom PCB spin. DC1375B includes all recommended decoupling, layout, and thermal design elements from the LTM4616 datasheet.

Does the DC1375B support both LGA and BGA versions of the LTM4616?

Yes - the DC1375B PCB footprint and layout are compatible with both the 15mm × 15mm × 2.82mm LGA and 15mm × 15mm × 3.42mm BGA packages of the LTM4616. Pin mapping, thermal pad alignment, and decoupling network match the mechanical drawings and assembly guidelines published by Analog Devices for both package types.

Can the DC1375B be used to evaluate Burst Mode® operation?

Yes - the DC1375B provides dedicated solder jumpers (JP1, JP2) to configure MODE1/MODE2 pins for Burst Mode®, forced continuous conduction mode (CCM), or pulse-skipping mode. This allows direct measurement of light-load efficiency, output ripple, and transient response under each operating mode as specified in the LTM4616 Electrical Characteristics table.

What output capacitor configurations are implemented on the DC1375B?

The DC1375B implements the recommended dual-stage output filtering from the LTM4616 datasheet: two parallel 100µF X5R ceramic capacitors (COUT1/COUT2) plus one 470µF POSCAP (COUT_BULK) per channel. This configuration meets the 20mV peak-to-peak ripple and <10µs settling time requirements for dynamic load steps up to 3A/µs, as verified in Figure G08–G12 of the LTM4616 datasheet.

Is thermal performance data available for the DC1375B with the LTM4616 installed?

Yes - Analog Devices characterizes the DC1375B using the same 95mm × 76mm 4-layer board referenced in the LTM4616 Absolute Maximum Ratings table. Measured θ_JA = 10.5°C/W and θ_JC(bottom) = 2°C/W are documented in the DC1375B user guide (UG-461), confirming junction temperature stays below 125°C at 8A/channel with 200LFM airflow and no heatsink.