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Renesas ISL9123IIC-EVZ
- Part No.:
- ISL9123IIC-EVZ
- Manufacturer:
- Renesas
- Package:
- Datasheet:
-
ISL9123IIC-EVZ.pdf
- Description:
- EVAL BOARD FOR ISL9123
- Quantity:
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- Shipping:
Inventory:4,858
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Product details
Overview
ISL9123IIC-EVZ from Renesas Electronics is an evaluation board designed to accelerate functional and performance validation of the ISL9123IICZ ultra-low IQ buck regulator in WLCSP package. It supports I²C-programmable output voltage (0.4 V to 5.375 V), dynamic slew rate control, and selectable operating modes including Auto-PFM and Forced PWM - enabling rapid characterization of efficiency, transient response, and soft-start behavior under real-world load conditions.
For engineers reviewing the ISL9123IIC-EVZ datasheet, ISL9123IIC-EVZ pinout, ISL9123IIC-EVZ application, or ISL9123IIC-EVZ equivalent, this board delivers direct access to internal registers (e.g., VSET at 0x11, CONV_CFG at 0x12), Kelvin-sense test points for precision efficiency measurement, and jumper-configurable EN/I²C interface - all optimized for low-noise, high-accuracy DC/DC evaluation in space-constrained portable and battery-powered systems.
Technical Context
The ISL9123IIC-EVZ implements a dedicated hardware platform for the ISL9123IICZ buck regulator, featuring a 1.8 V nominal input-rated WLCSP IC with integrated power MOSFETs and Type I/II error amplifier selection. Its layout strictly follows Renesas' recommended PCB guidelines: short high-current loops, dedicated ground plane on Layer 2, and isolation of SCL/SDA traces from LX/VSW switching nodes to prevent noise coupling.
It integrates dual Kelvin-sense headers (J1 S+/S− for VIN, J2 S+/S− for VOUT), configurable jumpers (J4 for EN, J5 for I²C), and auxiliary test points (TP1–TP8) supporting full-cycle characterization - including startup waveforms (EN, LX, VOUT), fault flag monitoring (INTFLG_REG at 0x03), and soft-discharge enablement via I²C-controlled EN_AND bit.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Target Device | ISL9123IICZ - 1.8 V input-rated, ultra-low IQ buck regulator in WLCSP package |
| Input Voltage Range | 1.8 V to 5.5 V - supports single-cell Li-ion, USB, and multi-rail system inputs |
| Output Voltage Range | 0.4 V to 5.375 V - programmable via I²C register VSET (0x11), covering core logic, memory, and analog rail requirements |
| Max Output Current | 600 mA - achievable when VIN > 2.5 V; validated with Murata DFE18SAN1R0MG0L inductor and GRM32ER61C476ME15 output capacitor |
| Operating Temperature | −40 °C to +85 °C - matches industrial ambient rating of ISL9123IICZ for embedded deployment |
| I²C Register Access | Full read/write support for key registers: VSET (0x11), CONV_CFG (0x12), INTFLG_REG (0x03), INTFLG_MASK (0x13) |
| Test Point Interface | Kelvin-sense headers (J1/J2), through-hole TP1–TP3, turret terminals TP4–TP8 - enables lab-grade accuracy in efficiency, ripple, and transient measurements |
Availability
ISL9123IIC-EVZ is available at Aetrix Electronics and suitable for battery-powered wearables, IoT sensor nodes, and portable medical devices requiring stable component supply, fast design iteration, and production-ready power architecture validation.
Supply support for ISL9123IIC-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 leader delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, infrastructure, and IoT applications.
The ISL9123x evaluation board series belongs to Renesas' Power Management Evaluation Platform, engineered specifically to de-risk adoption of ultra-low IQ buck regulators in energy-sensitive applications where quiescent current, dynamic voltage scaling, and I²C configurability are critical.
FAQ
What is the primary purpose of the ISL9123IIC-EVZ?
The ISL9123IIC-EVZ is a dedicated evaluation board for the ISL9123IICZ buck regulator. It enables engineers to validate key performance metrics - including efficiency across load and input voltage ranges, I²C-programmed VOUT ramping, soft-start behavior, and fault flag reporting - without custom PCB development. The board includes Kelvin-sense connections, jumper-selectable EN, and I²C header J5 to directly interface with Renesas' official evaluation software.
Which IC does the ISL9123IIC-EVZ evaluate, and what are its key electrical ratings?
The ISL9123IIC-EVZ evaluates the ISL9123IICZ - a 1.8 V input-rated, ultra-low IQ buck regulator in WLCSP package. Its confirmed specifications include 1.8 V to 5.5 V input range, 0.4 V to 5.375 V I²C-programmable output, up to 600 mA output current (VIN > 2.5 V), and −40 °C to +85 °C operating temperature. These ratings are validated on the ISL9123IIC-EVZ using Murata GRM32ER61C476ME15 and DFE18SAN1R0MG0L components.
How is I²C communication implemented on the ISL9123IIC-EVZ?
I²C communication on the ISL9123IIC-EVZ is routed through header J5 (2×10, 1.27 mm pitch), providing direct access to SDA and SCL signals. The board supports full register read/write operations - including VSET (0x11) for output voltage, CONV_CFG (0x12) for mode selection (Auto-PFM/Forced PWM), and INTFLG_REG (0x03) for fault flag monitoring. Renesas' official evaluation software uses this interface to configure and monitor the ISL9123IICZ in real time.
Does the ISL9123IIC-EVZ support efficiency measurement, and how is it performed?
Yes, the ISL9123IIC-EVZ supports precision efficiency measurement via dedicated Kelvin-sense connections: J1 S+/S− for input voltage/current and J2 S+/S− for output voltage/current. This eliminates lead resistance errors during bench testing. Users connect a bench power supply to J1 and an electronic load to J2, then measure simultaneous VIN/VOUT and IIN/IOUT to calculate efficiency - a method explicitly validated in the R16UZ0031EU0101 manual's Section 1.2 and Figure 2.
Can the ISL9123IIC-EVZ be used to evaluate ISL9123A or ISL9123B variants?
No - the ISL9123IIC-EVZ is specifically configured for the ISL9123IICZ variant. While the board family (ISL9123xIIx-EVZ) shares mechanical layout across variants, Renesas assigns unique part numbers (e.g., ISL9123AIIC-EVZ, ISL9123BII9-EVZ) for each IC version due to differences in default output voltage, VOUT range (e.g., ISL9123B limited to 1.180 V), and feature availability (e.g., Forced Bypass only on ISL9123/A). Using ISL9123IIC-EVZ with non-IICZ devices is not supported.
ISL9123IIC-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
ISL9123IIC-EVZ FAQ
1.How can I place an order for ISL9123IIC-EVZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL9123IIC-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 ISL9123IIC-EVZ reliable?
The price and inventory of ISL9123IIC-EVZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL9123IIC-EVZ is usually 5 days.
3.What payment methods are accepted for ISL9123IIC-EVZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL9123IIC-EVZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL9123IIC-EVZ?
ISL9123IIC-EVZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL9123IIC-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 ISL9123IIC-EVZ?
For technical support, including ISL9123IIC-EVZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL9123IIC-EVZ requirements.
6.How does Aetrix verify that ISL9123IIC-EVZ is sourced from the original manufacturer or authorized distributors?
All ISL9123IIC-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 ISL9123IIC-EVZ meets industry standards.
7.What is the process for return or replacement of ISL9123IIC-EVZ?
All ISL9123IIC-EVZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL9123IIC-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 ISL9123IIC-EVZ part is unused and in its original packaging.
Return procedure for ISL9123IIC-EVZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL9123IIC-EVZ Tags
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