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Renesas ISL9123IIN-EVZ
- Part No.:
- ISL9123IIN-EVZ
- Manufacturer:
- Renesas
- Package:
- Datasheet:
-
ISL9123IIN-EVZ.pdf
- Description:
- EVAL BOARD FOR ISL9123
- Quantity:
- Payment:
- Shipping:
Inventory:3,025
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Product details
Overview
ISL9123IIN-EVZ from Renesas Electronics is an evaluation board designed to validate the ISL9123IINZ ultra-low IQ buck regulator in WLCSP packaging. It supports input voltages from 1.8V to 5.5V, delivers up to 600mA output current, and enables I²C-programmable output voltage (0.4V–5.375V), slew rate, and operation modes including Auto-PFM and Forced PWM.
For engineers reviewing the ISL9123IIN-EVZ datasheet, ISL9123IIN-EVZ pinout, ISL9123IIN-EVZ application, or ISL9123IIN-EVZ equivalent, this board provides direct access to register-level control (e.g., VSET at 0x11, CONV_CFG at 0x12), Kelvin-sense efficiency measurement points, and configurable EN/I²C interfaces for rapid characterization of buck regulation behavior under real-world load and thermal conditions.
Technical Context
The ISL9123IIN-EVZ implements a dedicated hardware platform for the ISL9123IINZ IC, featuring optimized PCB layout with inner-layer ground planes, short high-current loops, and isolated signal routing for SCL/SDA/EN to prevent noise coupling. It integrates test points (TP1–TP8), multi-pin headers (J1–J5), and jumper-configurable enable logic (J4) to support both bench validation and system-level integration testing.
Board-level functionality includes I²C-based dynamic voltage scaling via DVSRATE configuration, soft-start and soft-discharge control (EN_AND/Soft DSCHG bits), and fault monitoring through INTFLG_REG (0x03). The platform supports full register read/write operations-including RO_REG1 (0x02) for chip ID verification-and accommodates auxiliary VSW probing (TP2) for ISL9123/A variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Target Device | ISL9123IINZ - 1.8V-output, WLCSP-packaged buck regulator with I²C interface |
| Input Voltage Range | 1.8V to 5.5V - supports single-cell Li-ion, USB, and wide-input portable power rails |
| Output Current Capability | Up to 600mA - validated at VIN > 2.5V with proper output capacitance (≥6µF) |
| Programmable VOUT Range | 0.4V to 5.375V - covers core voltage scaling for processors, FPGAs, and low-power SoCs |
| Operating Temperature | −40°C to +85°C - qualified for industrial ambient environments without derating |
| I²C Register Access | Full read/write support for VSET (0x11), CONV_CFG (0x12), INTFLG_REG (0x03), and RO_REG1 (0x02) |
| Kelvin Sensing | Dedicated S+/S− terminals on J1 (VIN) and J2 (VOUT) - enables accurate efficiency measurement independent of trace resistance |
Availability
ISL9123IIN-EVZ is available at Aetrix Electronics and suitable for power management validation, DC-DC converter qualification, and embedded system bring-up requiring stable component supply and repeatable test conditions.
Supply support for ISL9123IIN-EVZ 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 automotive, industrial, and IoT applications.
The ISL9123x evaluation board series is part of Renesas' power management development ecosystem, engineered to accelerate design-in of ultra-low quiescent current buck regulators targeting battery-powered and energy-sensitive systems.
FAQ
What is the primary function of the ISL9123IIN-EVZ?
The ISL9123IIN-EVZ is an evaluation board specifically built to characterize the ISL9123IINZ buck regulator. It provides physical access to all critical signals-VIN, VOUT, LX, EN, SCL, SDA-and enables full I²C register control, efficiency measurement via Kelvin sensing, and operational mode validation (Auto-PFM, Forced PWM) without custom PCB design. ISL9123IIN-EVZ is not a standalone power solution but a test platform for the underlying IC.
Which IC does the ISL9123IIN-EVZ evaluate?
The ISL9123IIN-EVZ evaluates the ISL9123IINZ - a 1.8V-output, ultra-low IQ buck regulator in wafer-level chip-scale package (WLCSP). It is explicitly listed in the Bill of Materials (Page 10) and referenced in the ordering table (Page 13) as the target device. The board's silk screen and layout are optimized for this specific variant, not the ISL9123A or ISL9123B versions.
Does the ISL9123IIN-EVZ support dynamic voltage scaling (DVS)?
Yes, the ISL9123IIN-EVZ supports DVS through the ISL9123IINZ's I²C interface. Using the evaluation software, users can modify the VSET register (0x11) to change output voltage and configure the DVSRATE field in CONV_CFG (0x12) to set the ramp-up slew rate. This allows precise control over voltage transitions during processor core scaling or low-power state entry/exit sequences.
Can the ISL9123IIN-EVZ be used to measure efficiency accurately?
Yes, the ISL9123IIN-EVZ includes dedicated Kelvin sense connections (J1 S+/S− for VIN, J2 S+/S− for VOUT) that eliminate trace resistance errors during input/output voltage measurement. When paired with a precision bench supply and electronic load, these terminals enable high-fidelity efficiency calculation across load and input voltage ranges - a capability confirmed in Section 1.2 and Figure 2 of the manual.
Is the ISL9123IIN-EVZ compatible with ISL9123A or ISL9123B devices?
No - while the ISL9123xIIx-EVZ platform name suggests family-wide use, the ISL9123IIN-EVZ board is physically and electrically configured for the ISL9123IINZ only. Its silk screen, BOM (U1 = ISL9123IINZ), and default output voltage setting (1.8V) are specific to that variant. ISL9123A/B require separate boards (e.g., ISL9123AIIC-EVZ or ISL9123BII9-EVZ) due to differing VOUT ranges and register behaviors (e.g., Soft DSCHG is ISL9123/B-only).
ISL9123IIN-EVZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Packaging:
- Box
- Product Status:
- Active
- Main Purpose:
- DC/DC, Step Down
- Outputs and Type:
- 1 Non-Isolated Output
- Voltage - Output:
- -
- Current - Output:
- 0.4V ~ 5.375V
- Voltage - Input:
- 600mA
- Regulator Topology:
- 1.8V ~ 5.5V
- Frequency - Switching:
- Buck
- Contents:
- 2.5MHz
- Utilized IC / Part:
- Board(s)
- Power - Output:
- ISL9123
ISL9123IIN-EVZ FAQ
1.How can I place an order for ISL9123IIN-EVZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL9123IIN-EVZ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ISL9123IIN-EVZ reliable?
The price and inventory of ISL9123IIN-EVZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL9123IIN-EVZ is usually 5 days.
3.What payment methods are accepted for ISL9123IIN-EVZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL9123IIN-EVZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL9123IIN-EVZ?
ISL9123IIN-EVZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL9123IIN-EVZ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ISL9123IIN-EVZ?
For technical support, including ISL9123IIN-EVZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL9123IIN-EVZ requirements.
6.How does Aetrix verify that ISL9123IIN-EVZ is sourced from the original manufacturer or authorized distributors?
All ISL9123IIN-EVZ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ISL9123IIN-EVZ meets industry standards.
7.What is the process for return or replacement of ISL9123IIN-EVZ?
All ISL9123IIN-EVZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL9123IIN-EVZ, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ISL9123IIN-EVZ part is unused and in its original packaging.
Return procedure for ISL9123IIN-EVZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL9123IIN-EVZ Tags
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