Renesas ISL80020ADEMO1Z

Overview

ISL80020ADEMO1Z from Renesas Electronics is a 2A, 2MHz demonstration board designed to evaluate the ISL80020A synchronous step-down DC/DC converter in point-of-load applications with 2.7V–5.5V input and fixed 1.8V output. It features an 8-lead 2mm×2mm TDFN evaluation platform occupying <64mm² area and delivers up to 95% peak efficiency.

For engineers reviewing the ISL80020ADEMO1Z datasheet, ISL80020ADEMO1Z pinout, ISL80020ADEMO1Z application, or ISL80020ADEMO1Z equivalent, this board enables rapid validation of transient response, thermal performance, and protection features-including negative current, overcurrent, short-circuit, and over-temperature protection-under real-world load conditions.

Technical Context

The ISL80020ADEMO1Z implements peak current mode control architecture optimized for low duty cycle operation and fast transient response. It integrates the ISL80020A IC in PWM mode, operating at a fixed 2MHz switching frequency to minimize external component size and improve noise immunity.

This board is pre-configured with CIN = 4×22µF (0805), COUT = 22µF, L1 = 1.2µH power inductor, and feedback resistors R1/R2 set for 1.8V output. Test points TP1–TP4 provide direct access to VIN, VOUT, PGND, and PHASE nodes for oscilloscope probing and load testing.

Key Specifications

Availability

ISL80020ADEMO1Z is available at Aetrix Electronics and suitable for point-of-load power validation, embedded system prototyping, and industrial DC/DC design verification requiring stable component supply and repeatable test conditions.

Supply support for ISL80020ADEMO1Z 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 manufacturer specializing in microcontrollers, analog, power management, and timing solutions for industrial, automotive, and communications markets.

The ISL80020A product line targets ultra-compact, high-efficiency buck converters for space-constrained point-of-load applications where low quiescent current, fast transient response, and thermal robustness are critical.

FAQ

What is the primary function of the ISL80020ADEMO1Z?

The ISL80020ADEMO1Z is a fully assembled demonstration board that evaluates the ISL80020A 2A, 2MHz synchronous step-down DC/DC converter. It provides immediate access to key signals (VIN, VOUT, PGND, PHASE) and validates performance under real load conditions including efficiency, startup/shutdown behavior, and protection responses. The ISL80020ADEMO1Z is not a standalone power module but a reference design platform for engineering validation.

Does the ISL80020ADEMO1Z support adjustable output voltage?

No, the ISL80020ADEMO1Z is configured for a fixed 1.8V output using R1 and R2 feedback resistors as specified in the UG026 schematic. To change VOUT, users must replace R1/R2 with values matching the ISL80020A's feedback equation (VOUT = 0.6V × (1 + R1/R2)). The ISL80020ADEMO1Z does not include onboard trim components or jumpers for voltage adjustment.

What input voltage range is supported by the ISL80020ADEMO1Z?

The ISL80020ADEMO1Z supports an input voltage range of 2.7V to 5.5V, aligned with the ISL80020A regulator's operational specification. This range accommodates common sources such as single-cell Li-ion batteries (2.7–4.2V), USB 5V supplies, and regulated 3.3V or 5V system rails. Operation below 2.7V may cause undervoltage lockout activation on the ISL80020A IC.

How is thermal performance managed on the ISL80020ADEMO1Z?

The ISL80020ADEMO1Z uses the ISL80020A in an 8-lead 2mm×2mm TDFN package with an exposed thermal pad soldered directly to the PCB's internal ground plane. The board layout specifies ≥4 vias under the thermal pad to enhance heat transfer. Thermal protection is implemented in the ISL80020A IC itself, which shuts down and auto-restarts upon die temperature exceeding ~150°C, as verified in Figure 13 of UG026.

Can the ISL80020ADEMO1Z be used with other ISL800xxx regulators?

The ISL80020ADEMO1Z is specifically optimized for the ISL80020A (2A, 2MHz), but its physical layout and component selection closely match the ISL80020, ISL80015, and ISL80015A variants. However, switching frequency, current capability, and protection thresholds differ across these parts. Using another regulator requires verifying compatibility with the fixed 1.8V feedback network and confirming thermal limits under 2A load - the ISL80020ADEMO1Z is not guaranteed to operate correctly with non-ISL80020A devices without modification.