Analog Devices Inc. DC2565A

Overview

DC2565A from Analog Devices is a demonstration board for the LT8607/LT8607B 42V, 750mA synchronous step-down regulator. It implements a 5V, 2MHz fixed-output power supply with ultralow 1.7µA non-switching quiescent current, Burst Mode® operation, and <10mVP-P output ripple - optimized for automotive and industrial applications requiring wide input range (3.0V–42V) and low EMI.

For engineers reviewing the DC2565A datasheet, DC2565A pinout, DC2565A application, or DC2565A equivalent, this demo board enables rapid evaluation of LT8607 performance in high-efficiency, low-I_Q step-down conversion - including soft-start, tracking, spread-spectrum EMI reduction, and Power Good signaling under real load transients and input voltage variation.

Technical Context

The DC2565A implements the LT8607 monolithic current-mode buck controller in a thermally enhanced 10-lead MSOP package, configured for fixed 5V output with external SYNC and TR/SS pins accessible for mode selection and output tracking. It supports programmable switching frequency (200kHz–2.2MHz) via RT resistor and includes integrated boost capacitor, input/output filtering, and EMI mitigation components per CISPR 25 Class 5 requirements.

It demonstrates key LT8607 features including 35ns minimum on-time for high VIN/VOUT ratios, peak current limiting (1.2–2.0A), internal compensation, and accurate 1V EN/UV threshold with hysteresis - all validated across –40°C to 125°C operating junction temperature.

Key Specifications

Availability

DC2565A is available at Aetrix Electronics and suitable for automotive infotainment power supplies, industrial sensor node regulators, and battery-powered IoT gateway designs requiring stable component supply, low-noise DC/DC conversion, and AEC-Q100-aligned validation support.

Supply support for DC2565A 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, headquartered in Wilmington, MA.

The DC2565A belongs to Analog Devices' Power by Linear™ demonstration board family, designed specifically to accelerate design-in of high-efficiency, low-quiescent-current DC/DC regulators for automotive, industrial, and medical applications demanding robust transient response and ultra-low standby power.

FAQ

What is the primary function of the DC2565A demo board?

The DC2565A demo board is a fully assembled and tested evaluation platform for the LT8607/LT8607B 42V, 750mA synchronous step-down regulator. It provides immediate access to all critical signals - including VIN, VOUT, EN/UV, PG, SYNC, and TR/SS - enabling engineers to validate 5V output performance, measure quiescent current, assess EMI behavior, and verify soft-start and tracking functionality without custom PCB development. The DC2565A implements the exact circuit shown in the LT8607 datasheet Figure TA01a.

Does the DC2565A support both LT8607 and LT8607B variants?

Yes - the DC2565A is designed to evaluate both the LT8607 and LT8607B ICs. It uses the MSOP package variant with exposed pad (e.g., LT8607EMSE#PBF), which includes the SYNC and TR/SS pins required for mode selection and output tracking. The board's default configuration operates in Burst Mode (SYNC grounded), but users can float SYNC to enable pulse-skipping or tie it to INTVCC for spread-spectrum modulation - matching the functional flexibility documented for the LT8607/LT8607B family in Rev. D datasheet.

Can the DC2565A be used to evaluate adjustable-output configurations?

No - the DC2565A is configured exclusively for fixed 5V output using the LT8607-5 variant (e.g., LT8607EMSE-5#PBF). It incorporates the internal 6.6MΩ feedback divider and omits external FB resistors. To evaluate adjustable-output operation, a different demo board (e.g., DC2564A for LT8606) or custom modification would be required. The DC2565A's schematic and layout are optimized for 5V stability, EMI filtering, and thermal performance - not reconfiguration.

What input voltage range is validated on the DC2565A?

The DC2565A is validated across the full LT8607 input range of 3.0V to 42V. Its input stage includes a 47µF/50V X7R ceramic input capacitor and reverse-polarity protection, supporting automotive cold-crank (4.5V) and load-dump (40V+) conditions. Efficiency curves in the LT8607 datasheet (Figures G01–G04) and radiated EMI test data (Figure G33) were captured using the DC2565A with 12V and 14V inputs - confirming stable 5V regulation and <10mVP-P ripple from 50mA to 750mA load.

Is the DC2565A AEC-Q100 qualified?

The DC2565A demo board itself is not AEC-Q100 qualified - qualification applies to the LT8607 IC (e.g., LT8607JMSE-5#WPBF, automotive-grade MSOP variant). However, the DC2565A uses automotive-grade passive components (X7R ceramics, shielded inductors) and follows layout guidelines aligned with AEC-Q100 system-level reliability requirements. It serves as the reference platform for validating AEC-Q100-compliant designs using LT8607 automotive-grade parts, and its test reports (including CISPR 25 EMI) are referenced in Analog Devices' automotive reliability documentation for the LT8607 family.