Renesas ISL9104AIRUAEVAL1Z

Overview

ISL9104AIRUAEVAL1Z from Renesas Electronics is an evaluation board designed to test the ISL9104AIRUAZ-T adjustable-output buck regulator, delivering up to 500mA at 0.8V–VIN with 4.3MHz switching frequency and low quiescent current. It features on-board 100kΩ R1/R2 feedback resistors setting default VOUT = 1.6V, jumper JP1 for enable/disable control, and input/output connectors for rapid prototyping in portable power applications.

For engineers reviewing the ISL9104AIRUAEVAL1Z datasheet, ISL9104AIRUAEVAL1Z pinout, ISL9104AIRUAEVAL1Z application, or ISL9104AIRUAEVAL1Z equivalent, this page provides verified board-level specifications, layout-validated interface details, recommended test equipment (DC supply, electronic load, oscilloscope), and BOM-sourced component values for accurate ISL9104A-based design validation.

Technical Context

The ISL9104AIRUAEVAL1Z implements a complete reference design for the ISL9104AIRUAZ-T - a high-frequency synchronous step-down regulator using an internal P-MOSFET high-side switch and integrated compensation. Its 1.6×1.6 mm µTDFN-6 package hosts VIN, EN, SW, GND, FB, and NC pins, with FB connected to external R1/R2 for output voltage programming.

Test conditions are defined per AN1522: input voltage range 2.7V to 6.0V (or VOUT + VDROP), load current 0–500mA, ambient temperature −40°C to +85°C. The board populates C1/C2 (4.7µF X5R), L1 (1µH), and C3 (47pF) only for adjustable variants - confirming signal integrity support for feedback loop stability analysis.

Key Specifications

Availability

ISL9104AIRUAEVAL1Z is available at Aetrix Electronics and suitable for portable medical devices, battery-powered IoT sensors, and wearable electronics requiring stable component supply, fast evaluation turnaround, and validated reference designs for ultra-low-IQ DC/DC conversion.

Supply support for ISL9104AIRUAEVAL1Z 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 manufacturer specializing in microcontrollers, analog power, and mixed-signal solutions for automotive, industrial, and consumer markets.

The ISL9104AIRUAEVAL1Z belongs to Renesas' precision power management evaluation platform family, engineered to accelerate development of space-constrained, high-efficiency power supplies using their ISL9104A series buck regulators.

FAQ

What is the primary function of the ISL9104AIRUAEVAL1Z?

The ISL9104AIRUAEVAL1Z is an evaluation board for the ISL9104AIRUAZ-T adjustable-output buck regulator. It provides a fully assembled, tested platform with input/output connectors, enable jumper JP1, and pre-populated feedback resistors to validate performance - including efficiency, transient response, and thermal behavior - under real-world load and input conditions. Engineers use the ISL9104AIRUAEVAL1Z to verify design margins before committing to custom PCB layouts.

Which IC does the ISL9104AIRUAEVAL1Z evaluate, and what are its key electrical specs?

The ISL9104AIRUAEVAL1Z evaluates the ISL9104AIRUAZ-T, a 4.3MHz synchronous buck regulator delivering up to 500mA with 0.8V to VIN adjustable output. Key specs include 2.7–6.0V input range, low quiescent current, and internal P-MOSFET switch. The ISL9104AIRUAEVAL1Z's on-board 100kΩ R1/R2 sets default VOUT = 1.6V, matching the ISL9104AIRUAZ-T's FB voltage reference of 0.8V.

How do I configure the output voltage on the ISL9104AIRUAEVAL1Z?

The ISL9104AIRUAEVAL1Z supports adjustable output via the FB pin and external resistor divider. With R1 = R2 = 100kΩ populated, VOUT = 0.8V × (1 + 100k/100k) = 1.6V. To change output voltage, replace R2 with a value calculated as R2 = R1 × ((VOUT / 0.8V) − 1). The board includes test point TP1 on the FB node for probing and loop stability analysis during reconfiguration of the ISL9104AIRUAEVAL1Z.

What test equipment is required to evaluate the ISL9104AIRUAEVAL1Z?

Per AN1522, required equipment includes a DC power supply (6.5V/1A), electronic load (0–500mA), multimeters, function generator, and oscilloscope. The ISL9104AIRUAEVAL1Z's VIN/VOUT/GND connectors and SW node test point allow direct probing of input/output ripple, switching waveforms, and load transients. JP1 enables clean enable/disable toggling without soldering, critical for sequencing validation in the ISL9104AIRUAEVAL1Z workflow.

Is the ISL9104AIRUAEVAL1Z RoHS compliant and lead-free?

Yes, the ISL9104AIRUAEVAL1Z is Pb-free and RoHS compliant, as confirmed in the "Features" section of AN1522 Rev 1.00. All components listed in the BOM - including U1 (ISL9104AIRUAZ-T), C1/C2 (Murata GRM188R60J475KE19D), and R1/R2 (Panasonic ERJ2RKF1003) - meet RoHS Directive 2011/65/EU requirements. This ensures compatibility with modern automated assembly processes and environmental compliance mandates for the ISL9104AIRUAEVAL1Z.