Renesas ISL91212BEVAL1Z

Overview

ISL91212BEVAL1Z from Renesas is an evaluation board for the ISL91212B quad-output PMIC, designed to validate power delivery in compact, high-performance systems. It supports 1+1+1+1 single-phase buck configuration, delivers up to 5A per output, operates from 2.5V–5.5V input, and enables I²C-programmable voltage scaling from 0.3V to 2.0V with ±0.7% system accuracy and 3mV/µs DVS slew rate - ideal for AI processor and optical transceiver module power validation.

For engineers reviewing the ISL91212BEVAL1Z datasheet, ISL91212BEVAL1Z pinout, ISL91212BEVAL1Z application, or ISL91212BEVAL1Z equivalent, this board provides full access to all 35-ball WLCSP signals (including PH_A–PH_D, VOUT1–VOUT4, MPIOs, GPIOs, and I²C interface), enabling rapid characterization of transient response, efficiency mapping, sequencing behavior, and fault protection under real load conditions.

Technical Context

The ISL91212BEVAL1Z implements the ISL91212B's native 1+1+1+1 phase architecture using four independent synchronous buck controllers, each driving its own power stage (PH_A through PH_D) with integrated 23mΩ high-side and 9mΩ low-side MOSFETs. It leverages Renesas' R5 control technology for ultra-fast transient response (50A/µs per phase capability) and seamless CCM/DCM transitions without external compensation.

This evaluation platform exposes all critical analog and digital interfaces: AVIN (2.5–5.5V), VIO (1.8V), EN, INT, SCL/SDA, three MPIOs, two GPIOs, and remote sense inputs (RTN1–RTN4). It supports programmable PWM frequency (2–6MHz), automatic diode emulation, and pulse-skipping modes - enabling accurate measurement of light-load efficiency and dynamic voltage scaling performance across temperature and load.

Key Specifications

Availability

ISL91212BEVAL1Z is available at Aetrix Electronics and suitable for AI accelerator development, optical transceiver module qualification, smartphone SoC power validation, and enterprise SSD reference design requiring stable component supply and fast-turn evaluation support.

Supply support for ISL91212BEVAL1Z 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 trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications, with deep expertise in power management and analog mixed-signal design.

The ISL91212B belongs to Renesas' high-density PMIC product line targeting space-constrained, battery-sensitive applications such as AR/VR glasses, drones, and client/data center SSDs - emphasizing small solution size (7×10mm²), high efficiency (>94.7% at 3.8V_IN/1.8V_OUT), and robust transient response.

FAQ

What is the primary function of the ISL91212BEVAL1Z?

The ISL91212BEVAL1Z is an evaluation board designed exclusively to validate the ISL91212B quad-output PMIC in real-world power delivery scenarios. It provides complete signal access, pre-populated decoupling, and test points for measuring efficiency, transient response, sequencing, and fault behavior - not a standalone power solution.

Does the ISL91212BEVAL1Z support both ISL91212A and ISL91212B configurations?

No - the ISL91212BEVAL1Z is specifically configured for the ISL91212B's 1+1+1+1 single-phase output architecture. While physically compatible with the ISL91212A WLCSP package, it does not support the ISL91212A's 2+1+1 phase configuration without hardware modification and firmware reconfiguration.

Can the ISL91212BEVAL1Z be used to evaluate Dynamic Voltage Scaling (DVS)?

Yes - the ISL91212BEVAL1Z fully supports I²C-based DVS with programmable slew rates up to 3mV/µs. Test points and jumpers allow direct probing of VOUT1–VOUT4 during DVS transitions, and the board's GPIO/MPIO headers enable connection to external DVS control logic or pattern generators.

What input voltage range must be applied to the ISL91212BEVAL1Z for proper operation?

The ISL91212BEVAL1Z requires 2.5V–5.5V applied to its AVIN and PVIN terminals - matching the ISL91212B's absolute maximum and recommended operating conditions. Supplying outside this range risks damage to the ISL91212B IC or invalidates performance measurements.

Is the ISL91212BEVAL1Z RoHS compliant and suitable for production-representative testing?

Yes - the ISL91212BEVAL1Z uses the same RoHS-compliant 35-ball WLCSP package (W5x7.35C) and SnAgCuNi solder balls as the production ISL91212B. Its PCB layout follows Renesas' WLCSP design guidelines, making it suitable for pre-production validation and reliability correlation studies.