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Renesas ISL91110IRA-EVZ
- Part No.:
- ISL91110IRA-EVZ
- Manufacturer:
- Renesas
- Package:
- Datasheet:
-
ISL91110IRA-EVZ.pdf
- Description:
- EVAL BOARD FOR ISL91110IR
- Quantity:
- Payment:
- Shipping:
Inventory:1,076
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Product details
Overview
ISL91110IRA-EVZ from Renesas Electronics is an evaluation board designed to demonstrate the ISL91110IIAZ adjustable-output buck-boost switching regulator. It supports input voltages from 1.8V to 5.5V, delivers up to 2A output current at 3.3V, operates at 2.5MHz switching frequency, and features jumper-selectable EN and MODE control. It is used for rapid validation of high-efficiency power conversion in portable battery-powered systems.
For engineers reviewing the ISL91110IRA-EVZ datasheet, ISL91110IRA-EVZ pinout, ISL91110IRA-EVZ application, or ISL91110IRA-EVZ equivalent, this board enables fast functional verification of the ISL91110IIAZ regulator's buck-boost behavior near VIN ≈ VOUT, PFM/PWM mode switching, and resistor-programmable output voltage (2V–5V) under real load conditions.
Technical Context
The ISL91110IRA-EVZ implements the ISL91110IIAZ WLCSP-based buck-boost controller in a fully assembled, test-ready layout with Kelvin-sense headers (J1/J2), dual LX outputs, and dedicated test points (TP1–TP3). It uses a 1µH power inductor (Toko DFE322512C), 330µF tantalum output capacitor, and precision feedback resistors to maintain regulation across wide input/output differentials.
Board-level features include jumper-controlled enable (J3) and mode selection (J4), allowing direct evaluation of auto-PFM efficiency optimization and forced-PWM transient response. The design supports external clock synchronization (2.75–3.25MHz) via the MODE pin and provides stable operation from –40°C to +85°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Target IC | ISL91110IIAZ - adjustable-output buck-boost regulator in 4×5.2mm WLCSP package |
| Input Voltage Range | 1.8V to 5.5V - supports single-cell Li-ion, Li-polymer, and multi-cell alkaline/NiMH battery inputs |
| Output Voltage Range | 2.0V to 5.0V - set via R2 (e.g., 324kΩ for 3.3V); verified per Table 1 in AN1912 |
| Max Output Current | 2A - achievable at PVIN = 2.5V, VOUT = 3.3V; validated with Toko DFE322512C inductor (4.6A rating) |
| Switching Frequency | 2.5MHz - fixed internal oscillator; supports external sync 2.75–3.25MHz via MODE pin |
| Operating Temperature | –40°C to +85°C - industrial-grade thermal performance confirmed per board-level testing |
Availability
ISL91110IRA-EVZ is available at Aetrix Electronics and suitable for portable medical devices, wearable sensors, IoT edge nodes, and USB-C powered accessories requiring stable component supply and fast power architecture validation.
Supply support for ISL91110IRA-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 Corporation is a global semiconductor leader delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, infrastructure, and IoT applications.
The ISL91110IRA-EVZ belongs to Renesas' high-efficiency power management evaluation platform family, engineered specifically to accelerate adoption of buck-boost regulators in space-constrained, battery-sensitive applications using emerging chemistries.
FAQ
What is the primary function of the ISL91110IRA-EVZ?
The ISL91110IRA-EVZ is an evaluation board for the ISL91110IIAZ buck-boost regulator. It enables engineers to validate voltage regulation, efficiency, and dynamic response across input-to-output voltage crossovers without custom PCB design. The board directly implements the ISL91110IIAZ's full feature set-including programmable output, PFM/PWM mode selection, and external clock sync-making ISL91110IRA-EVZ ideal for early-stage power architecture prototyping.
Does the ISL91110IRA-EVZ support adjustable output voltage?
Yes, the ISL91110IRA-EVZ is configured for the ISL91110IIAZ, which has an adjustable output. By replacing resistor R2 (default 324kΩ for 3.3V), users can set VOUT from 2.0V to 5.0V per Table 1 in AN1912. The board includes test points and Kelvin-sense headers to ensure accurate measurement and regulation validation, confirming ISL91110IRA-EVZ's suitability for tuning power rails in battery-powered designs.
What are the key jumpers on the ISL91110IRA-EVZ and their functions?
The ISL91110IRA-EVZ features two critical jumpers: J3 controls EN (enable), shorting EN to VIN to activate the regulator; J4 controls MODE, selecting between auto-PFM (high-efficiency light-load operation) and forced-PWM (consistent switching for noise-sensitive applications). These jumpers allow immediate functional configuration without soldering, making ISL91110IRA-EVZ highly accessible for lab-based characterization and comparative testing.
Can the ISL91110IRA-EVZ be synchronized to an external clock?
Yes, the ISL91110IRA-EVZ supports external clock synchronization. Removing the jumper from J4 and applying a 2.75MHz–3.25MHz signal to the MODE pin (center pin of J4 header) overrides the internal 2.5MHz oscillator. This capability allows ISL91110IRA-EVZ users to reduce EMI through frequency dithering or align switching with system timing domains-critical for noise-sensitive audio or RF subsystems.
What components are included on the ISL91110IRA-EVZ to ensure reliable high-current operation?
The ISL91110IRA-EVZ integrates a Toko DFE322512C 1µH power inductor (4.6A typical saturation current), 330µF tantalum output capacitor (7343 footprint), and low-ESR ceramic bypass capacitors (C2–C5). Combined with Kelvin-sense headers (J1/J2) and dual LX test points, these components ensure accurate high-current measurement, minimal voltage ripple, and thermal stability-validating ISL91110IRA-EVZ's readiness for 2A continuous load testing under real-world conditions.
ISL91110IRA-EVZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Packaging:
- Box
- Product Status:
- Active
- Main Purpose:
- DC/DC, Step Up or Down
- Outputs and Type:
- 1 Non-Isolated Output
- Voltage - Output:
- -
- Current - Output:
- 3.3V, 5V
- Voltage - Input:
- 2A
- Regulator Topology:
- 1.8V ~ 5.5V
- Frequency - Switching:
- Buck-Boost
- Contents:
- 2.5MHz
- Utilized IC / Part:
- Board(s)
- Power - Output:
- ISL91110IR
ISL91110IRA-EVZ FAQ
1.How can I place an order for ISL91110IRA-EVZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL91110IRA-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 ISL91110IRA-EVZ reliable?
The price and inventory of ISL91110IRA-EVZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL91110IRA-EVZ is usually 5 days.
3.What payment methods are accepted for ISL91110IRA-EVZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL91110IRA-EVZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL91110IRA-EVZ?
ISL91110IRA-EVZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL91110IRA-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 ISL91110IRA-EVZ?
For technical support, including ISL91110IRA-EVZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL91110IRA-EVZ requirements.
6.How does Aetrix verify that ISL91110IRA-EVZ is sourced from the original manufacturer or authorized distributors?
All ISL91110IRA-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 ISL91110IRA-EVZ meets industry standards.
7.What is the process for return or replacement of ISL91110IRA-EVZ?
All ISL91110IRA-EVZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL91110IRA-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 ISL91110IRA-EVZ part is unused and in its original packaging.
Return procedure for ISL91110IRA-EVZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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