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Renesas ISL9440BEVAL1Z
- Part No.:
- ISL9440BEVAL1Z
- Manufacturer:
- Renesas
- Package:
- Datasheet:
-
ISL9440BEVAL1Z.pdf
- Description:
- EVAL BOARD FOR ISL9440B
- Quantity:
- Payment:
- Shipping:
Inventory:2,862
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Product details
Overview
ISL9440BEVAL1Z from Renesas Electronics is an evaluation board designed to characterize the ISL9440B quad-output controller, which integrates three synchronous buck PWM controllers (5V, 3.3V, 12V) and one LDO (2.5V), supporting up to 18A on PWM1/PWM2 and 14A on PWM3 with programmable soft-start, independent enables, and OV/OC/OT protection.
For engineers reviewing the ISL9440BEVAL1Z datasheet, ISL9440BEVAL1Z setup, ISL9440BEVAL1Z test configuration, or ISL9440BEVAL1Z performance validation, this board provides full access to all ISL9440B control signals, measurement points, and load transient circuitry for rapid power architecture prototyping in multi-rail server, telecom, and industrial embedded systems.
Technical Context
The ISL9440BEVAL1Z implements the ISL9440B's current-mode control architecture with internal compensation, enabling stable regulation using minimal external components. It supports 300kHz fixed-frequency operation and delivers regulated outputs at 5.0V ±1.5%, 3.32V ±1.0%, 12.0V ±1.5%, and 2.50V ±1.2% under full load.
Board-level features include dedicated load transient test circuits for all three PWM channels, full-bandwidth ripple measurement points, PGOOD monitoring, reset assertion, and jumper-selectable enable logic - all mapped directly to the ISL9440B's 33-pin QFN package pins including ISENx, PHASEx, BOOTx, UGATEx, LGATEx, FBx, EN/SSx, and OCSETx terminals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Target IC | ISL9440B quad-output controller with 3x PWM + 1x LDO |
| Input Voltage Range | 15–23V DC - matches ISL9440B recommended VIN operating range |
| Output Voltages | 5.0V (±1.5%), 3.32V (±1.0%), 12.0V (±1.5%), 2.50V (±1.2%) - verified per Electrical Specifications table |
| Max Rated Current | PWM1/PWM2: 18A; PWM3: 14A; LDO: 1.0A - measured at TA = +25°C, no forced airflow |
| Output Ripple (Full Load) | VOUT1: 83 mVP-P; VOUT2: 61 mVP-P; VOUT3: 109 mVP-P - measured with full-bandwidth oscilloscope |
| Switching Frequency | 300 kHz - fixed frequency per ISL9440B datasheet and Table 1 feature comparison |
| Test Equipment Support | Designed for 0–24V/20A supply, 20A electronic loads, 100MHz quad-trace oscilloscope, and signal generator |
Availability
ISL9440BEVAL1Z is available at Aetrix Electronics and suitable for multi-rail power system validation, buck controller qualification, and LDO integration testing requiring stable component supply and documented reference design fidelity.
Supply support for ISL9440BEVAL1Z 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 ISL9440BEVAL1Z belongs to Renesas' high-current multi-output power management evaluation platform family, engineered to accelerate development of compact, efficient, and reliable multi-rail DC-DC subsystems for datacom and industrial edge equipment.
FAQ
What is the primary function of the ISL9440BEVAL1Z?
The ISL9440BEVAL1Z is an evaluation board specifically built to demonstrate and validate the ISL9440B quad-output controller. It provides complete hardware implementation-including power stages, feedback networks, gate drivers, and test points-for all three synchronous buck regulators (5V, 3.3V, 12V) and one LDO (2.5V), enabling engineers to verify dynamic response, efficiency, ripple, and protection behavior without custom PCB design. The ISL9440BEVAL1Z is not a standalone power module but a characterization tool for the ISL9440B IC.
Does the ISL9440BEVAL1Z support load transient testing?
Yes, the ISL9440BEVAL1Z includes three dedicated load transient circuits-one per PWM output-with MOSFET-based step generators, current-sense resistors (R13/R15/R17), and clock inputs (ISTEP_CLK1/2/3). These circuits allow controlled current steps (e.g., 3.75A → 11.25A on PWM1) to evaluate overshoot, undershoot, and recovery time as shown in Figures 10–12 of AN1454. The ISL9440BEVAL1Z schematic and layout are optimized to minimize parasitic inductance for accurate transient measurement.
What input voltage range is supported by the ISL9440BEVAL1Z?
The ISL9440BEVAL1Z is validated for operation across 15V to 23V DC input, aligning with the ISL9440B's recommended VIN range. Testing at 19V is specified for rated current measurements, while efficiency curves (Figures 4–6) include data at 16V, 19V, and 23V. The board accepts up to 24V per the "Recommended Equipment" section, but sustained operation above 23V exceeds the ISL9440B's absolute maximum rating and is not supported.
Can the ISL9440BEVAL1Z be used to evaluate the ISL9440A or ISL9440C?
No - the ISL9440BEVAL1Z is hardware-optimized for the ISL9440B only. While the ISL9440A and ISL9440C share the same pinout, they differ in switching frequency (600kHz vs. 300kHz) and soft-start behavior (fixed 1.7ms vs. programmable), requiring different compensation and timing component values. The ISL9440BEVAL1Z uses components selected for 300kHz operation and ISL9440B-specific feedback and soft-start configurations, making it unsuitable for direct evaluation of ISL9440A or ISL9440C without redesign.
What documentation accompanies the ISL9440BEVAL1Z?
The ISL9440BEVAL1Z ships with the AN1454 user's manual (Rev 0.00, Sep 2009), the ISL9440B and ISL9440C datasheets, and the physical evaluation board. AN1454 contains full schematic (Page 6), bill of materials (Pages 7–8), PCB layout views (Pages 9–14), performance curves (Pages 4–5), and step-by-step setup/test procedures. No firmware, GUI, or software tools are included - evaluation is performed via external test equipment as specified in the manual.
ISL9440BEVAL1Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Packaging:
- Box
- Product Status:
- Active
- Main Purpose:
- DC/DC, Step Down with LDO
- Outputs and Type:
- 4 Non-Isolated Outputs
- Voltage - Output:
- -
- Current - Output:
- 2.5V, 3.32V, 5V, 12V
- Voltage - Input:
- 15A, 15A, 12A, 800mA
- Regulator Topology:
- 15V ~ 23V
- Frequency - Switching:
- Buck
- Contents:
- 300kHz
- Utilized IC / Part:
- Board(s)
- Power - Output:
- ISL9440B
ISL9440BEVAL1Z FAQ
1.How can I place an order for ISL9440BEVAL1Z through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL9440BEVAL1Z 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 ISL9440BEVAL1Z reliable?
The price and inventory of ISL9440BEVAL1Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL9440BEVAL1Z is usually 5 days.
3.What payment methods are accepted for ISL9440BEVAL1Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL9440BEVAL1Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL9440BEVAL1Z?
ISL9440BEVAL1Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL9440BEVAL1Z 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 ISL9440BEVAL1Z?
For technical support, including ISL9440BEVAL1Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL9440BEVAL1Z requirements.
6.How does Aetrix verify that ISL9440BEVAL1Z is sourced from the original manufacturer or authorized distributors?
All ISL9440BEVAL1Z 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 ISL9440BEVAL1Z meets industry standards.
7.What is the process for return or replacement of ISL9440BEVAL1Z?
All ISL9440BEVAL1Z units undergo pre-shipment inspection (PSI). If there is an issue with ISL9440BEVAL1Z, 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 ISL9440BEVAL1Z part is unused and in its original packaging.
Return procedure for ISL9440BEVAL1Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL9440BEVAL1Z Tags
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