Analog Devices Inc. SCP-ADP5070-EVALZ

Overview

SCP-ADP5070-EVALZ from Analog Devices is an evaluation board for the ADP5070 dual-output DC-DC converter, designed to generate regulated ±15 V (1 A positive / 300 mA negative) from a single input for low-power signal chain applications including precision ADCs, DACs, and op-amp biasing. It supports resistor-programmable output voltages from |5 V| to |39 V| per rail and integrates slew rate, frequency, and startup sequence configuration options.

For engineers reviewing the SCP-ADP5070-EVALZ datasheet, SCP-ADP5070-EVALZ pinout, SCP-ADP5070-EVALZ application, or SCP-ADP5070-EVALZ equivalent, this board enables rapid validation of dual-polarity power architectures in sensor interfaces, data acquisition systems, and industrial analog front-ends - with support for VIOC-controlled LDO cascading, synchronous clocking, and precise UVLO sequencing.

Technical Context

The SCP-ADP5070-EVALZ implements the ADP5070AREZ IC in a fully assembled, test-ready layout optimized for Signal Chain Power (SCP) modular interoperability. It features independent boost (+VOUT) and inverting (–VOUT) regulators, each with dedicated feedback resistors (RFT1/RFB1 and RFT2/RFB2), EN1/EN2 enable control, and SYNC/SLEW/SEQ configuration jumpers.

Board-level design includes XAL4030-682MEC (6.8 µH) and XAL4040-153MEB (15 µH) shielded inductors, DFLS240-7 Schottky diodes, 10 µF/50 V X5R output capacitors, and SMA connectors for low-noise ripple measurement. Input voltage range is up to 15 V, and it requires SCP-INPUT-EVALZ and SCP-OUTPUT-EVALZ for full functional evaluation.

Key Specifications

Availability

SCP-ADP5070-EVALZ is available at Aetrix Electronics and suitable for precision data acquisition, industrial sensor conditioning, and medical analog front-end development requiring stable component supply, fast evaluation turnaround, and modular power system scalability.

Supply support for SCP-ADP5070-EVALZ 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, industrial automation, and communications markets.

The SCP-ADP5070-EVALZ belongs to Analog Devices' Signal Chain Power evaluation platform, engineered specifically to accelerate prototyping of low-noise, dual-rail analog power systems using interoperable, plug-and-play modules.

FAQ

What is the primary function of the SCP-ADP5070-EVALZ?

The SCP-ADP5070-EVALZ is a fully assembled evaluation board for the ADP5070 dual-output switching regulator IC. Its primary function is to provide a validated, modular platform for generating tightly regulated ±15 V (or other resistor-programmed values) from a single input supply, enabling rapid testing of dual-polarity power architectures in precision analog signal chains. The SCP-ADP5070-EVALZ integrates all necessary passive components, configuration jumpers, and interconnect headers for seamless integration into the broader Signal Chain Power ecosystem.

Does the SCP-ADP5070-EVALZ require additional hardware to operate?

Yes, the SCP-ADP5070-EVALZ requires companion SCP modules to function: SCP-INPUT-EVALZ supplies input power, SCP-OUTPUT-EVALZ provides output monitoring/load connection, and SCP-CONFIGURATOR software is needed for topology selection and configuration guidance. Optional breakout boards (e.g., SCP-1X2BKOUT-EVALZ) and filtering modules (SCP-FILTER-EVALZ) are recommended for ripple measurement and noise-sensitive applications. The SCP-ADP5070-EVALZ cannot operate standalone without these supporting elements.

Can output voltages on the SCP-ADP5070-EVALZ be adjusted, and how?

Yes, both +VOUT and –VOUT are resistor-programmable from |5 V| to |39 V| using external feedback dividers. The SCP-ADP5070-EVALZ ships with RFT1 = 2.43 MΩ / RFB1 = 137 kΩ for +15 V and RFT2 = 2.32 MΩ / RFB2 = 118 kΩ for –15 V. Table 2 in the demo manual provides exact resistor values for common voltages. Adjustments require soldering new resistors onto designated pads and verifying open connections and solder integrity before power-up.

What configuration options does the SCP-ADP5070-EVALZ support for startup sequencing?

The SCP-ADP5070-EVALZ supports four startup modes via R7 and R8 jumpers: Manual (both outputs enabled simultaneously), Tracking (–VOUT follows +VOUT), Seq 1→2 (+VOUT powers first), and Seq 2→1 (–VOUT powers first). These modes prevent latch-up or reverse-bias conditions in downstream analog circuitry and are critical when powering op-amps or ADCs with strict supply sequencing requirements. The SCP-ADP5070-EVALZ implements these using discrete pull-up/pull-down resistors tied to EN1 and EN2 pins of the ADP5070AREZ.

Is VIOC functionality supported on the SCP-ADP5070-EVALZ, and how is it enabled?

Yes, VIOC (Voltage Input-to-Output Control) is supported to cascade the SCP-ADP5070-EVALZ with VIOC-capable LDOs like the ADP7182. It is enabled by installing 0 Ω resistors at R17 and R18, which connect the ADP5070's internal VIOC nodes to external LDO feedback paths. This allows the LDO to dynamically adjust its dropout voltage based on the upstream switching regulator's output, minimizing power loss and improving PSRR in noise-critical signal chains. The SCP-ADP5070-EVALZ includes dedicated VIOC header connectors (VIOC1/VIOC2) for direct attachment.