Analog Devices Inc. DC2629A

Overview

DC2629A from Analog Devices is a fully assembled, tested, and documented demonstration board for the LTC3310S monolithic 10A synchronous step-down DC/DC converter with Silent Switcher 2 architecture. It delivers 1.2V at up to 7.5A from a 2.25V–5.5V input, features integrated hot-loop bypass capacitors, supports 2MHz switching, and includes EMI-optimized layout with optional filter. It is used for rapid evaluation of high-efficiency, low-EMI POL power in FPGA, ASIC, and telecom applications.

For engineers reviewing the DC2629A datasheet, DC2629A pinout, DC2629A application, or DC2629A equivalent, this demo board provides validated reference design, thermal performance data, radiated/conducted EMI test results per CISPR25 Class 5, soft-start tracking waveforms, load transient response (1A→9A), and parallel-phase configuration support - all critical for automotive-grade, high-density power system validation.

Technical Context

The DC2629A implements the LTC3310S in a 3mm × 3mm LQFN-18 package with Kelvin AGND sensing, remote feedback, and integrated VIN-to-PGND/AGND bypass capacitors. It supports programmable 0.5–5MHz switching via RT resistor, MODE/SYNC for multiphase synchronization or PWM mode selection (pulse-skip/forced continuous), and includes PGOOD, die temperature monitoring via SSTT, and output short-circuit recovery with soft-start re-initiation.

It validates key LTC3310S behaviors under real PCB conditions: 35ns minimum on-time, ±1% VOUT accuracy with remote sense, 4.5mΩ NMOS / 16mΩ PMOS RDS(ON), 1µA shutdown current, and 100% duty-cycle dropout operation - all measured with XEL4030-101ME inductor and 110µF total output capacitance.

Key Specifications

Availability

DC2629A is available at Aetrix Electronics and suitable for FPGA core supplies, telecom POL modules, and automotive infotainment systems requiring stable component supply, pre-validated EMI performance, and fast-turn power design iteration.

Supply support for DC2629A 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 semiconductor company specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision instrumentation, power management, and signal integrity applications.

The DC2629A belongs to Analog Devices' Power by Linear™ demonstration board family, designed to accelerate adoption of Silent Switcher 2 DC/DC converters in noise-sensitive, space-constrained, and automotive-qualified power systems.

FAQ

What is the primary function of the DC2629A demo board?

The DC2629A demo board is a complete, ready-to-use evaluation platform for the LTC3310S 10A monolithic synchronous step-down converter. It demonstrates full operational capability including 1.2V/7.5A output, 2MHz switching, Silent Switcher 2 EMI performance, soft-start tracking, load transients, and multiphase synchronization - enabling immediate validation without custom PCB design. The DC2629A includes all necessary passive components, test points, and documentation per Rev. F datasheet.

Does the DC2629A support adjustable output voltage?

No - the DC2629A is configured for fixed 1.2V output using the LTC3310S (not the -1 variant), with FB resistor divider set accordingly. While the underlying LTC3310S supports adjustable outputs from 0.5V to VIN via external resistors, the DC2629A board is optimized for 1.2V FPGA/ASIC core rail evaluation and does not include provision for output voltage reconfiguration. Users requiring other voltages must refer to the LTC3310S datasheet and design a custom layout.

Can the DC2629A be used for automotive qualification testing?

Yes - the DC2629A implements the AEC-Q100 qualified LTC3310SEV#PBF (–40°C to +125°C) and includes thermal design, EMI filtering, and layout practices aligned with automotive requirements. Its CISPR25 Class 5 radiated/conducted EMI test data, junction temperature monitoring via SSTT pin, and validated 7.5A continuous operation make it suitable for pre-compliance testing in automotive infotainment and ADAS sub-systems. The DC2629A itself is not AEC-Q100 certified, but enables qualification of the LTC3310S in target environments.

How is EMI performance validated on the DC2629A?

The DC2629A includes an optional EMI filter section and was tested per CISPR25 Class 5 peak limits in both horizontal and vertical polarization. Radiated emissions data (Fig G33–G34) and conducted emissions (Fig G35) are published in the LTC3310S datasheet Rev. F, showing compliance at 3.3V→1.2V/7.5A/2MHz with filter installed. This validates the effectiveness of the Silent Switcher 2 architecture, internal VIN bypass caps, and optimized PCB stack-up - directly supporting low-noise system integration.

What thermal management features does the DC2629A include?

The DC2629A uses the LTC3310S's exposed PGND pad (Pin 19) soldered to a large internal ground plane with multiple thermal vias, achieving θJA = 42°C/W. It includes a die temperature monitor accessible via the SSTT pin, with slope of 4mV/°C, allowing real-time junction temperature estimation. Thermal performance is verified across –40°C to +125°C ambient, and the board supports forced-air cooling for extended 7.5A operation. The DC2629A layout minimizes hot-spot formation through symmetric copper pours and direct PGND routing.