Renesas ISL80030ADEMO1Z

Overview

ISL80030ADEMO1Z from Renesas Electronics (formerly Intersil) is a demonstration board designed to evaluate the ISL80030A 3A synchronous buck converter IC in 2×2 mm DFN package. It supports 2.7V–5.5V input, delivers up to 3A at user-configurable output voltages (e.g., 1.2V–3.3V), operates at 2MHz PWM switching frequency, and integrates power-good signaling, enable control, and thermal protection for rapid prototyping of point-of-load power supplies.

For engineers reviewing the ISL80030ADEMO1Z datasheet, ISL80030ADEMO1Z application, ISL80030ADEMO1Z setup, or ISL80030ADEMO1Z compatibility with ISL80030A-based designs, this board provides validated layout, pre-characterized efficiency curves (e.g., >90% at 2A/3.3V_IN), real-world transient response waveforms, and direct access to all critical signals (VIN, VOUT, EN, PG, PHASE, FB) for lab validation and design verification.

Technical Context

The ISL80030ADEMO1Z implements a complete reference design for the ISL80030A - a monolithic, peak-current-mode-controlled synchronous buck regulator. It uses an integrated P-channel high-side and N-channel low-side MOSFET pair (r_DS(ON) = 70 mΩ / 60 mΩ @ 5V), eliminates boot capacitor requirements, and supports 100% duty-cycle operation for ultra-low dropout applications.

The board incorporates standard external components per Table 2 of FN8766 Rev.2.00: 22 µF input/output ceramic capacitors, 22 pF compensation capacitor, and a 1.0–3.3 µH inductor. Output voltage is set via a precision resistor divider (e.g., R1=200 kΩ, R2=100 kΩ for 1.8V), with feedback reference at 0.600 V ±1% over –40°C to +125°C.

Key Specifications

Availability

ISL80030ADEMO1Z is available at Aetrix Electronics and suitable for industrial power supply validation, telecom POL testing, and embedded system bring-up requiring stable component supply, fast evaluation turnaround, and production-representative thermal performance.

Supply support for ISL80030ADEMO1Z 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 Corporation is a global semiconductor leader delivering microcontrollers, analog power, and SoC solutions for automotive, industrial, and IoT applications.

The ISL80030ADEMO1Z belongs to Renesas' high-efficiency DC/DC evaluation platform family, engineered to accelerate adoption of compact, high-frequency buck converters in space-constrained and thermally demanding applications.

FAQ

What is the primary function of the ISL80030ADEMO1Z?

The ISL80030ADEMO1Z is a fully assembled demonstration board for evaluating the ISL80030A 3A synchronous buck converter. It provides a ready-to-use hardware platform with optimized layout, pre-populated components (including inductor, input/output capacitors, and feedback resistors), test points for key signals (VIN, VOUT, EN, PG, PHASE, FB), and documented performance data - enabling immediate lab characterization of efficiency, transient response, and thermal behavior without custom PCB design. The ISL80030ADEMO1Z directly supports design-in of the ISL80030A into end systems.

Does the ISL80030ADEMO1Z support adjustable output voltage?

Yes, the ISL80030ADEMO1Z supports user-adjustable output voltage via an external resistor divider connected to the FB pin. The default configuration sets 1.8V using R1 = 200 kΩ and R2 = 100 kΩ, but values can be changed per Equation 1 in the ISL80030A datasheet (FN8766) to achieve outputs from 0.8V to 3.3V. The ISL80030ADEMO1Z includes solder pads and documentation for modifying R1/R2, and its feedback reference voltage is precisely 0.600 V ±1% across temperature, ensuring stable regulation for the ISL80030A.

What input voltage range is validated on the ISL80030ADEMO1Z?

The ISL80030ADEMO1Z is validated for input voltages from 2.7V to 5.5V, matching the full operating range of the ISL80030A IC. This covers common sources including single-cell Li-ion batteries (2.7–4.2V), USB 5V, and regulated 3.3V or 5V system rails. The board includes 10 µF minimum ceramic input capacitance near VIN as specified in the ISL80030A datasheet, and all protections - including VIN undervoltage lockout (2.7V threshold) and overvoltage clamping - are fully functional on the ISL80030ADEMO1Z.

How does the ISL80030ADEMO1Z demonstrate the 2MHz switching capability of the ISL80030A?

The ISL80030ADEMO1Z implements the ISL80030A's native 2MHz switching frequency, confirmed by oscilloscope measurements shown in Figures 5, 9, and 15 of FN8766 Rev.2.00. It uses a 1.0–3.3 µH inductor (per Table 2) and low-ESR 22 µF ceramic output capacitors to maintain stability and minimize ripple at high frequency. Transient response waveforms (e.g., Figure 37) and jitter plots (Figures 30–31) on the ISL80030ADEMO1Z validate fast load-step recovery (<5 µs PG assertion delay) and tight timing control - essential for noise-sensitive digital loads powered by the ISL80030A.

Can the ISL80030ADEMO1Z be used for thermal evaluation of the ISL80030A?

Yes, the ISL80030ADEMO1Z is configured for meaningful thermal evaluation: it uses the ISL80030A's 8-lead 2×2 mm DFN package with exposed pad (EPAD) soldered directly to a large internal ground plane, and includes multiple thermal vias under the EPAD per datasheet recommendations. Measured junction-to-ambient thermal resistance (θ_JA) is ~70°C/W, and thermal shutdown (150°C) and hysteresis (25°C) functions are fully operational. Efficiency curves (e.g., Figure 9) and steady-state thermal images in the ISL80030ADEMO1Z user guide confirm safe 3A operation at +25°C ambient - providing realistic thermal boundary data for the ISL80030A in production layouts.