Renesas ZL9117MEVAL1Z

Overview

ZL9117MEVAL1Z from Renesas Electronics is a 6-layer evaluation board designed to characterize and validate the ZL9117M 17A digital DC/DC step-down power module under real-world load, thermal, and PMBus control conditions. It delivers up to 17A at 1.0V from a 12V input, features passive thermal management, and supports full digital configuration via USB-to-SMBus adapter and PowerNavigator™ software.

For engineers reviewing the ZL9117MEVAL1Z datasheet, ZL9117MEVAL1Z pinout, ZL9117MEVAL1Z application, or ZL9117MEVAL1Z equivalent, this board enables rapid validation of auto-compensation, transient response (3% deviation on 3A→9A step), PMBus programmability, and single/multi-supply operation modes - critical for server, telecom, and high-density embedded power design.

Technical Context

The ZL9117MEVAL1Z implements a performance-optimized single-phase layout for the ZL9117M module, with dedicated thermal vias, 6-layer copper stack-up, and optimized power delivery paths to sustain 17A continuous output. It integrates hardware-enabling logic, SMBus address selection (J4), output voltage pinstrapping (J5), and configurable PG delay tied to soft-start timing.

It supports both single-supply operation (via onboard REG1117A linear regulator for VDRV) and multi-supply configurations (external 4.5–6.5V driver supply at P3, 4.5–14V FET supply at P4). The board routes SYNC, SCL/SDA, FB+, FB−, EN, PG, and VTRK signals to accessible headers and test points for system-level integration analysis.

Key Specifications

Availability

ZL9117MEVAL1Z is available at Aetrix Electronics and suitable for server power validation, telecom base station DC/DC prototyping, and high-current FPGA/GPU core rail development requiring stable component supply and full digital configurability.

Supply support for ZL9117MEVAL1Z 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

Renesas Electronics is a global semiconductor leader delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, infrastructure, and IoT applications.

The ZL9117MEVAL1Z belongs to Renesas' digital power module evaluation platform family, engineered to accelerate adoption of intelligent, PMBus-configurable DC/DC converters in high-efficiency, high-density power systems.

FAQ

What is the primary function of the ZL9117MEVAL1Z evaluation board?

The ZL9117MEVAL1Z evaluation board is a complete hardware platform for evaluating the ZL9117M 17A digital DC/DC power module. It provides all necessary circuitry-including input/output filtering, thermal management, SMBus interface, and jumper-selectable configuration-to validate performance metrics such as efficiency, transient response, auto-compensation behavior, and PMBus command execution in real operating conditions.

Does the ZL9117MEVAL1Z support both single-supply and multi-supply operation?

Yes, the ZL9117MEVAL1Z supports both configurations. In single-supply mode (jumpered J6, J8, J9), it derives VDRV from an onboard REG1117A linear regulator powered by VIN. In multi-supply mode (J8/J9 removed), it accepts 4.5–6.5V at P3 for driver bias and optionally 4.5–14V at P4 for FET supply - enabling independent optimization of efficiency and thermal performance.

How is the ZL9117MEVAL1Z configured for output voltage and SMBus address?

The ZL9117MEVAL1Z uses physical pinstraps: J5 selects default output voltage (1.0V, 1.2V, 1.8V, 2.5V, or 3.3V) via resistor dividers; J4 sets SMBus address (0x2A–0x2E) using precision resistors. Both require power removal before adjustment. All other parameters - including compensation, fault thresholds, and sequencing - are configured via PMBus using PowerNavigator™ or text-based configuration files loaded into the ZL9117M.

What software tools are required to operate the ZL9117MEVAL1Z?

PowerNavigator™ evaluation software (included on CD with the kit) is required to communicate with the ZL9117M via USB-to-SMBus adapter connected to J7. It enables real-time monitoring, parameter modification, scenario loading, and configuration file generation. Supporting tools include ConfigCheck™ for validation and CompZL™ for custom PID coefficient calculation - all referenced in application notes AN2031, AN2033, and AN1670.

What thermal management features does the ZL9117MEVAL1Z incorporate?

The ZL9117MEVAL1Z uses a 6-layer PCB with internal copper planes, thermal vias beneath the ZL9117M module, and optimized component placement to enable passive cooling at full 17A load. No heatsink or forced airflow is required for baseline operation. Thermal relief pads on SW nodes and dedicated GND/PGND planes minimize impedance and enhance heat dissipation - validated in Figures 4–9 of AN1670.