Analog Devices Inc. ADP2107-1.8-EVAL

Overview

ADP2107-1.8-EVAL from Analog Devices is an evaluation board for the ADP2107-1.8 synchronous step-down DC-to-DC converter, delivering a fixed 1.8 V ±1% regulated output at up to 2.0 A load current. It operates from 2.7 V to 5.5 V input, features 1.2 MHz switching frequency, >95% peak efficiency, and supports PFM/PWM mode transition for light-load power conservation.

For engineers reviewing the ADP2107-1.8-EVAL datasheet, ADP2107-1.8-EVAL pinout, ADP2107-1.8-EVAL application, or ADP2107-1.8-EVAL equivalent, this board enables rapid validation of power delivery performance-including load transient response (5% overshoot @ 1 A), output ripple (<20 mV in PWM mode), and efficiency across input voltage and load conditions-prior to custom PCB design.

Technical Context

The ADP2107-1.8-EVAL implements a complete, fully assembled reference design centered on the ADP2107-1.8 IC, which integrates high- and low-side MOSFETs, current-mode PWM/PFM control, and internal compensation tuning. Its layout uses two 22 μF ceramic output capacitors (C3/C4), a 1.5 μH ferrite inductor (L1), and fixed 0 Ω/NS resistor configuration (R4/R5) to enforce the 1.8 V output without external feedback divider.

This board supports direct measurement of key metrics: inductor current waveform at LX node, output voltage ripple across C3/C4, and efficiency via synchronized VIN/VOUT and IIN/IOUT sensing. It is preconfigured for stable operation with minimal external components and optimized for space-constrained applications requiring high power density.

Key Specifications

Availability

ADP2107-1.8-EVAL is available at Aetrix Electronics and suitable for power subsystem validation, embedded system bring-up, and DC/DC converter qualification requiring stable component supply, traceable sourcing, and documented thermal/electrical performance data.

Supply support for ADP2107-1.8-EVAL 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 industrial, automotive, communications, and healthcare markets since 1965.

The ADP2107-1.8-EVAL belongs to Analog Devices' Power Management evaluation platform family, designed to accelerate development of efficient, compact, and reliable point-of-load (POL) power solutions for portable and space-constrained electronics.

FAQ

What is the primary function of the ADP2107-1.8-EVAL?

The ADP2107-1.8-EVAL is a fully assembled evaluation board for the ADP2107-1.8 synchronous buck converter. Its purpose is to enable engineers to validate the electrical performance-including regulation accuracy, efficiency, transient response, and thermal behavior-of the 1.8 V, 2 A DC/DC solution before integrating it into a final system design. It is not intended for production use.

Can the output voltage of the ADP2107-1.8-EVAL be adjusted?

No. The ADP2107-1.8-EVAL has a fixed 1.8 V output configuration. R4 is populated as a 0 Ω jumper and R5 is not installed (No Stuff), locking the feedback network to the internal 0.8 V reference and eliminating external resistor dependency. To evaluate adjustable output voltages, the ADP2107-EVAL variant must be used instead.

What are the key components included on the ADP2107-1.8-EVAL board?

The ADP2107-1.8-EVAL includes the ADP2107-1.8 IC, a 1.5 μH Toko D62LCB-1R5M inductor, dual 22 μF Murata GRM21BR60J226ME39L output capacitors, two 10 μF input capacitors, 68 pF compensation capacitor (C6), 1 nF soft-start capacitor (C5), and header pins for VIN, VOUT, GND, EN, and J1 enable control.

How is the ADP2107-1.8-EVAL powered and enabled?

The ADP2107-1.8-EVAL is powered via the VIN terminal (2.7–5.5 V) and grounded at GND. Enable functionality is controlled by jumper J1: inserting J1 connects the EN pin to VIN, activating the converter. The board also includes a 100 kΩ pull-down resistor (R2) to ensure default shutdown when J1 is removed.

Does the ADP2107-1.8-EVAL support load transient testing?

Yes. The ADP2107-1.8-EVAL is configured for 5% output voltage overshoot during a 1 A load transient step, as verified in Figure 5 of the documentation. Test points and layout allow direct oscilloscope probing of VOUT (AC-coupled), LX node, and inductor current using standard measurement setups described in the user guide.