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Renesas ISL91107IRA-EVZ
- Part No.:
- ISL91107IRA-EVZ
- Manufacturer:
- Renesas
- Package:
- Datasheet:
-
ISL91107IRA-EVZ.pdf
- Description:
- EVAL BOARD FOR ISL91107IR
- Quantity:
- Payment:
- Shipping:
Inventory:3,172
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Product details
Overview
ISL91107IRA-EVZ from Renesas (formerly Intersil) is an evaluation board designed to demonstrate the ISL91107IRTAZ 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 enables resistor-programmable output voltage from 1V to 5.2V - ideal for battery-powered portable electronics using Li-ion, Li-polymer, or emerging chemistries.
For engineers reviewing the ISL91107IRA-EVZ datasheet, ISL91107IRA-EVZ pinout, ISL91107IRA-EVZ application, or ISL91107IRA-EVZ equivalent, this board provides rapid validation of buck-boost regulation near VIN = VOUT, PFM/PWM mode selection, enable control, and efficiency measurement under real load conditions with test points, jumpers, and high-current connectors.
Technical Context
The ISL91107IRA-EVZ implements the ISL91107IRTAZ IC in a fully assembled, tested layout optimized for low-noise, high-efficiency buck-boost operation. It integrates a 20-pin 3×4mm TQFN-packaged controller, dual LX outputs driving external power inductors, and feedback network components including R2 (60.4kΩ default) for 3.3V output programming.
Board-level features include jumper-selectable EN (J3) and MODE (J4) functions, dedicated test points for VIN, VOUT, LX1, LX2, and FB, and multi-pin headers (J1/J2) rated for continuous 2A operation - supporting functional verification across the full -40°C to +85°C ambient temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.8V to 5.5V - supports single-cell Li-ion (2.7–4.2V), Li-polymer, and wide-input battery systems. |
| Output Voltage Range | 1.0V to 5.2V - set via external resistor divider on FB pin; default 3.3V with 60.4kΩ R2. |
| Max Output Current | 2A continuous - validated at PVIN = 2.8V, VOUT = 3.3V with thermal management per layout. |
| Switching Frequency | 2.5MHz - enables use of compact 1µH inductors and reduces output ripple without sacrificing efficiency. |
| Operating Temperature | -40°C to +85°C - matches industrial-grade qualification of the ISL91107IRTAZ IC and board components. |
| Control Interface | Jumper-selectable EN and MODE - J3 enables/disables regulation; J4 selects auto-PFM or forced-PWM operation. |
Availability
ISL91107IRA-EVZ is available at Aetrix Electronics and suitable for battery-powered portable electronics, wearable health monitors, and IoT edge nodes requiring stable component supply during prototyping, pre-compliance testing, and power architecture validation.
Supply support for ISL91107IRA-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 (acquired Intersil in 2017) is a global semiconductor leader delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and infrastructure markets.
The ISL91107IRA-EVZ belongs to Renesas' precision power evaluation platform family, engineered specifically to accelerate development of high-efficiency, wide-input-range buck-boost regulators for next-generation battery-powered systems.
FAQ
What is the primary function of the ISL91107IRA-EVZ?
The ISL91107IRA-EVZ is an evaluation board for the ISL91107IRTAZ adjustable-output buck-boost regulator. It enables hardware validation of voltage regulation, efficiency, transient response, and mode behavior across 1.8V–5.5V input and 1V–5.2V output ranges. The ISL91107IRA-EVZ includes all necessary passives, test points, and jumpers to characterize the IC without custom PCB design.
How do I configure the ISL91107IRA-EVZ for a different output voltage?
To change the output voltage on the ISL91107IRA-EVZ, replace resistor R2 with a value from Table 1 - e.g., 46.4kΩ for 4.0V - using a 1% tolerance resistor. The feedback network uses R1 (187kΩ) and R2 to set VOUT = 0.6V × (1 + R1/R2). Confirm regulation with a voltmeter at TP4 and verify stability with an oscilloscope on VOUT and LX pins.
Does the ISL91107IRA-EVZ support both PFM and PWM modes?
Yes, the ISL91107IRA-EVZ supports both operating modes via jumper J4: shorting MODE to VIN forces continuous PWM; open or floating enables auto-PFM for light-load efficiency optimization. This mirrors the ISL91107IRTAZ IC's native control logic and allows direct comparison of efficiency curves across load conditions.
What is the maximum supported load current on the ISL91107IRA-EVZ?
The ISL91107IRA-EVZ is rated for up to 2A continuous output current when PVIN = 2.8V and VOUT = 3.3V, as verified in the UG066 user manual. Sustained 2A operation requires proper heatsinking, airflow, and use of the J2 header with low-impedance connections - performance beyond this point depends on thermal design and input voltage margin.
Can the ISL91107IRA-EVZ be used to evaluate the ISL91107IRTNZ?
No - the ISL91107IRA-EVZ is specifically configured for the adjustable-output ISL91107IRTAZ. The fixed 3.3V ISL91107IRTNZ requires the ISL91107IRN-EVZ board, which uses different feedback resistors (R2 = DNP) and has distinct BOM and schematic layout. Using the ISL91107IRA-EVZ with ISL91107IRTNZ would not yield correct regulation or protection behavior.
ISL91107IRA-EVZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Main Purpose:
- DC/DC, Step Up or Down
- Outputs and Type:
- 1 Non-Isolated Output
- Voltage - Output:
- -
- Current - Output:
- 3.3V
- Voltage - Input:
- 2A
- Regulator Topology:
- 1.8V ~ 5.5V
- Frequency - Switching:
- Buck-Boost
- Contents:
- 2.5MHz
- Utilized IC / Part:
- Board(s)
- Power - Output:
- ISL91107IR
ISL91107IRA-EVZ FAQ
1.How can I place an order for ISL91107IRA-EVZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL91107IRA-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 ISL91107IRA-EVZ reliable?
The price and inventory of ISL91107IRA-EVZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL91107IRA-EVZ is usually 5 days.
3.What payment methods are accepted for ISL91107IRA-EVZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL91107IRA-EVZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL91107IRA-EVZ?
ISL91107IRA-EVZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL91107IRA-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 ISL91107IRA-EVZ?
For technical support, including ISL91107IRA-EVZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL91107IRA-EVZ requirements.
6.How does Aetrix verify that ISL91107IRA-EVZ is sourced from the original manufacturer or authorized distributors?
All ISL91107IRA-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 ISL91107IRA-EVZ meets industry standards.
7.What is the process for return or replacement of ISL91107IRA-EVZ?
All ISL91107IRA-EVZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL91107IRA-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 ISL91107IRA-EVZ part is unused and in its original packaging.
Return procedure for ISL91107IRA-EVZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL91107IRA-EVZ Tags
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DFR0571
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