Renesas ISL62883EVAL2Z

Overview

The ISL62883EVAL2Z from Renesas Electronics is an evaluation board designed to demonstrate the performance of the ISL62883 multiphase synchronous-buck PWM VCORE controller implementing Intel IMVP-6.5 protocol. It supports 1–3-phase configurations, features on-board dynamic-load generation (300µs, ~25mΩ), and operates with input voltage range 4.5–20V, output voltage 0–1.5V, and full-load current up to 75A at 300kHz PWM frequency.

For engineers reviewing the ISL62883EVAL2Z datasheet, ISL62883EVAL2Z test setup, ISL62883EVAL2Z interface connections, or ISL62883EVAL2Z jumper configuration, this board enables rapid validation of IMVP-6.5 compliant CPU core power delivery, transient response under dynamic load, and phase configuration flexibility for notebook and mobile platform designs.

Technical Context

The ISL62883EVAL2Z implements Intersil's Robust Ripple Regulator (R3) technology for adaptive loop control and fast transient response. It interfaces directly with the ISL62883HRZ QFN-40 controller and supports configurable VID inputs (VID0–VID6), VR_ON enable logic, DPRSLPVR and PSI# signaling per IMVP-6.5 specification.

Board-level features include selectable phase count via jumpers J1–J4, DIP-switch S1 for control signal assertion, S3 for PWM enable/disable, and S5 to activate the integrated 300µs dynamic-load generator across VO and PGND. Test points provide direct access to PHASE1/2/3, VO, COMP, FB, ISEN1/2/3, and all VID lines.

Key Specifications

Availability

The ISL62883EVAL2Z is available at Aetrix Electronics and suitable for notebook platform validation, IMVP-6.5 compliance verification, and multiphase buck controller characterization requiring stable component supply and documented reference design support.

Supply support for ISL62883EVAL2Z 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 formed from the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, power management, and timing solutions.

The ISL62883EVAL2Z belongs to Renesas' legacy Intersil power management evaluation platform portfolio, developed specifically to accelerate adoption of IMVP-6.5-compliant CPU core power delivery in high-performance mobile computing systems.

FAQ

What is the primary function of the ISL62883EVAL2Z?

The ISL62883EVAL2Z is an evaluation board that demonstrates the ISL62883 multiphase synchronous-buck PWM VCORE controller operating under Intel IMVP-6.5 protocol. It provides hardware infrastructure-including power stage, dynamic load generator, VID configuration, and comprehensive test points-to validate transient response, phase scalability, and system-level integration of the ISL62883HRZ controller in real-world CPU power applications.

Does the ISL62883EVAL2Z support 1-phase, 2-phase, and 3-phase configurations?

Yes, the ISL62883EVAL2Z supports all three configurations via hardware jumpers: J1 and J2 configure ISEN1/ISEN2 sensing, J3 connects ISEN3/FB2 for 3-phase use, and J4 sets PWM3 output state. Documentation in AN1460 Rev 1.00 explicitly defines jumper states for each mode, enabling flexible evaluation of the ISL62883HRZ controller across varying CPU power demands.

What power supplies are required to operate the ISL62883EVAL2Z?

The ISL62883EVAL2Z requires three independent power sources: an adjustable 25V/10A supply for VIN (J5/J6), a fixed 5V/100mA supply for +5V bias (TP29/TP30), and a fixed 12V/100mA supply for the on-board dynamic-load generator (TP3/TP2). These are specified in Section "Recommended Equipment" of AN1460 Rev 1.00 and must be applied before enabling S3 or S5.

How is dynamic load applied on the ISL62883EVAL2Z?

Dynamic load is applied via onboard circuitry activated by toggle switch S5. When enabled, it generates a 300µs pulse across VO and PGND with an effective resistance of approximately 25mΩ. This allows engineers to measure transient response without external electronic loads-confirmed in Table 1 and Figure 1 of AN1460 Rev 1.00-and is synchronized to the ISL62883HRZ's control loop for repeatable testing.

Which controller IC is mounted on the ISL62883EVAL2Z board?

The ISL62883EVAL2Z board mounts the ISL62883HRZ - a QFN-40 packaged IMVP-6.5 compliant PWM controller - as confirmed in the Bill of Materials on page 5 of AN1460 Rev 1.00. This IC implements R3 technology, supports 7-bit VID input, and delivers precise core voltage regulation for Intel mobile processors, with all associated signals routed to test points and interface headers.