Analog Devices Inc. DC2407A

Overview

DC2407A from Analog Devices is a demonstration board for the LT8650S dual-channel 42V synchronous step-down Silent Switcher 2 regulator, configured to deliver 5V/4A and 3.3V/4A at 2MHz switching frequency with integrated EMI filtering, supporting automotive and industrial power supply evaluation under real-world thermal and noise constraints.

For engineers reviewing the DC2407A datasheet, DC2407A pinout, DC2407A application, or DC2407A equivalent, this board enables rapid validation of dual-output high-efficiency DC/DC conversion, spread-spectrum EMI reduction, forced continuous mode transient response, and multi-phase synchronization using the LT8650S's CLKOUT and SYNC interfaces.

Technical Context

The DC2407A implements the LT8650S in a fully populated, production-ready layout with optimized high-frequency current loops, internal bypass capacitors, and an optional external EMI filter stage. It supports both Burst Mode (6.2µA IQ) and forced continuous operation across 3.0V–42V input range.

Board-level features include independent EN/UV control per channel, VC pins accessible for loop compensation tuning, TEMP pin monitoring, PG1/PG2 power-good outputs, and SYNC/CLKOUT headers for multi-regulator phase alignment - all validated per CISPR 25 Class 5 radiated/conducted emission limits.

Key Specifications

Availability

DC2407A is available at Aetrix Electronics and suitable for automotive infotainment power rails, industrial PLC I/O modules, medical imaging subsystems, and test equipment requiring stable component supply with pre-validated EMI performance and thermal behavior.

Supply support for DC2407A 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, communications, industrial, and automotive markets.

The DC2407A belongs to Analog Devices' Power by Linear™ demonstration board family, designed specifically to accelerate adoption of Silent Switcher regulators in noise-sensitive, high-reliability applications where EMI compliance and thermal robustness are critical.

FAQ

What is the primary function of the DC2407A demonstration board?

The DC2407A demonstration board is a fully assembled, tested reference design for the LT8650S dual-channel synchronous step-down regulator. It provides immediate evaluation of 5V/4A and 3.3V/4A power delivery at 2MHz, with built-in EMI filtering, thermal management, and interface headers for SYNC, CLKOUT, PG, and VC pins - enabling rapid prototyping of automotive and industrial power systems without custom layout.

Does the DC2407A support spread spectrum modulation to reduce EMI?

Yes, the DC2407A supports spread spectrum modulation via the LT8650S's SYNC pin. When a DC voltage between 2.8V and 4V is applied to SYNC (or when tied to VCC), the DC2407A enters forced continuous mode with spread spectrum enabled - reducing peak radiated and conducted emissions while maintaining tight output regulation and fast transient response.

Can the DC2407A be used to synchronize multiple LT8650S regulators?

Yes, the DC2407A exposes the LT8650S's CLKOUT and SYNC pins on header connectors. By connecting CLKOUT from one DC2407A to the SYNC pin of another, up to four DC2407A boards can be synchronized into a 4-phase 16A supply - enabling interleaved operation that reduces input/output ripple and improves thermal distribution across multiple boards.

What thermal performance can be expected from the DC2407A at full load?

At 12V input delivering 4A on both 5V and 3.3V outputs, the DC2407A achieves ≤100°C case temperature rise above ambient, as verified in the LT8650S datasheet Figure G42. This performance relies on proper soldering of the LT8650S's exposed thermal pad (pins 33–38) to the PCB ground plane - a requirement explicitly implemented on the DC2407A board layout.

Is the DC2407A compatible with AEC-Q100 automotive requirements?

The DC2407A itself is not qualified, but it hosts the LT8650SEV and LT8650SIV variants - both AEC-Q100 Grade 1 (–40°C to +125°C) and Grade 2 (–40°C to +150°C) qualified versions of the IC. The board's layout, component selection, and thermal design align with automotive reliability practices, making it suitable for pre-compliance testing of AEC-Q100 power systems.