Renesas ISL80015ADEMO1Z

Overview

ISL80015ADEMO1Z from Renesas Electronics is a 1.5A, 2MHz synchronous step-down DC/DC converter demonstration board designed to evaluate the ISL80015A buck regulator in point-of-load applications with 2.7V–5.5V input and fixed 1.8V output. It features an 8-lead 2mm×2mm TDFN package, compact PCB layout under 64mm², and integrated protection including overcurrent, short-circuit, thermal, and negative current protection.

For engineers reviewing the ISL80015ADEMO1Z datasheet, ISL80015ADEMO1Z pinout, ISL80015ADEMO1Z application, or ISL80015ADEMO1Z equivalent, this board enables rapid validation of transient response, efficiency (up to 95%), soft-start behavior, and thermal performance under real 1.5A load conditions at 2MHz switching frequency.

Technical Context

The ISL80015ADEMO1Z implements peak current mode control architecture to support low duty cycle operation and fast transient response. It uses PWM modulation to minimize output noise and RF interference while operating at a fixed 2MHz switching frequency.

This board integrates the ISL80015A IC with external components optimized for 1.8V/1.5A output: 22µF X5R input/output capacitors, a 4mm power inductor (Wurth 74437324012), and precision feedback resistors (R1 = 200kΩ, R2 = 100kΩ) setting VOUT = 1.8V via the internal 0.6V reference.

Key Specifications

Availability

ISL80015ADEMO1Z is available at Aetrix Electronics and suitable for point-of-load power delivery, embedded system prototyping, and industrial sensor node evaluation requiring stable component supply and verified thermal performance.

Supply support for ISL80015ADEMO1Z 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 management, and timing solutions for industrial, automotive, and infrastructure markets.

The ISL80015ADEMO1Z belongs to Renesas' ISL800xxx demonstration board family, developed specifically to accelerate evaluation of low-quiescent-current synchronous buck regulators in space-constrained, high-efficiency point-of-load applications.

FAQ

What is the primary function of the ISL80015ADEMO1Z?

The ISL80015ADEMO1Z is a demonstration board built around the ISL80015A synchronous buck regulator. Its primary function is to provide a ready-to-use platform for evaluating the electrical performance-including efficiency, transient response, thermal behavior, and protection features-of the ISL80015A IC under real-world 1.5A, 2MHz, 1.8V output conditions. It is not a production-ready power module but a design validation tool.

Does the ISL80015ADEMO1Z support adjustable output voltage?

No, the ISL80015ADEMO1Z is configured for a fixed 1.8V output using precision feedback resistors (R1 = 200kΩ, R2 = 100kΩ) that set the voltage based on the ISL80015A's 0.6V internal reference. While the underlying ISL80015A IC supports adjustable outputs via external resistor dividers, this specific demo board's layout and BOM are optimized exclusively for 1.8V operation and do not include provisions for voltage adjustment.

Which IC is mounted on the ISL80015ADEMO1Z board?

The ISL80015ADEMO1Z board mounts the ISL80015AIRZ (or ISL80015AIRZ-equivalent variant), an 8-lead 2mm×2mm TDFN-packaged synchronous buck regulator rated for 1.5A output and 2MHz switching frequency. This matches the ordering row linkage in the source documentation and is confirmed by the Bill of Materials listing "U1: IC-1.5A, 2MHz BUCK REGULATOR, 8P, TDFN, 2X2".

Can the ISL80015ADEMO1Z be used with input voltages below 2.7V?

No-the ISL80015ADEMO1Z is specified and tested only for VIN = 2.7V to 5.5V, as stated in the User's Manual UG026 Rev 1.00. Operation below 2.7V may result in failure to start, unstable regulation, or violation of the ISL80015A's minimum input voltage requirement. The board's component selection (e.g., capacitor voltage ratings, inductor saturation current) is optimized for this defined range.

How is thermal management implemented on the ISL80015ADEMO1Z?

Thermal management on the ISL80015ADEMO1Z relies on the ISL80015A's exposed thermal pad, which is soldered to a large copper area on the PCB and connected to ground via at least four vias-as recommended in the layout guidelines. This configuration maximizes heat conduction from the IC die to the board plane, enabling sustained 1.5A operation at ambient temperatures up to +25°C with verified thermal performance per Figure 11–14 in UG026.