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Renesas ISL91107IIA-EVZ
- Part No.:
- ISL91107IIA-EVZ
- Manufacturer:
- Renesas
- Package:
- Datasheet:
-
ISL91107IIA-EVZ.pdf
- Description:
- EVAL BOARD FOR ISL91107
- Quantity:
- Payment:
- Shipping:
Inventory:4,348
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Product details
Overview
ISL91107IIA-EVZ from Renesas Electronics is an evaluation board for the ISL91107IIAZ adjustable-output buck-boost regulator IC, supporting 1V–5.2V output via external resistor divider, delivering up to 2A at 3.3V input, and featuring 2.5MHz switching frequency, 45µA quiescent current, and seamless auto-transition between buck and boost modes. It targets compact power delivery in space-constrained mobile and wireless applications.
For engineers reviewing the ISL91107IIA-EVZ datasheet, ISL91107IIA-EVZ pinout, ISL91107IIA-EVZ application, or ISL91107IIA-EVZ equivalent, this page provides verified board-level specifications, layout guidance, supported IC configuration, and integration notes for rapid prototyping of wide-input-range DC/DC conversion.
Technical Context
The ISL91107IIA-EVZ implements a complete reference design for the ISL91107IIAZ - a fully synchronous 4-switch buck-boost regulator with integrated 3.6A MOSFETs, 2.5MHz fixed-frequency PWM operation, and selectable PFM/PWM mode via MODE pin. It supports input voltages from 1.8V to 5.5V and delivers regulated output across buck, boost, and buck-boost boundary regions without output disturbance.
This evaluation board integrates all critical passive components: a 1µH shielded inductor (TOKO DFE322512C), 22µF X5R input capacitor (Murata GRM188R61A226ME15D), dual 22µF X5R output capacitors, and precision feedback resistors (187kΩ/60.4kΩ) to set nominal 3.3V output - matching the typical application circuit shown in Figure 1 of FN8584 Rev 3.00.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Evaluated IC | ISL91107IIAZ - adjustable-output buck-boost regulator with 1V–5.2V programmable VOUT |
| Input Voltage Range | 1.8V–5.5V - compatible with single-cell Li-ion, Li-polymer, and multi-cell alkaline/NiMH battery sources |
| Max Output Current | 2A @ VOUT=3.3V, PVIN=2.8V - validated per datasheet Figure 2 and Table on Page 3 |
| Switching Frequency | 2.5MHz (±10%) - enables use of small 1µH inductor and low-ESR ceramic capacitors |
| Quiescent Current | 45µA (PFM mode, no load) - optimized for battery-powered standby and light-load efficiency |
| Protection Features | Short-circuit, over-temperature (150°C shutdown), undervoltage lockout (1.75V rising threshold), hiccup-mode OCP |
Availability
ISL91107IIA-EVZ is available at Aetrix Electronics and suitable for smartphone power subsystem validation, 4G/LTE PA biasing, tablet PC auxiliary rail development, and portable medical device DC/DC prototyping requiring stable component supply and fast-turn evaluation support.
Supply support for ISL91107IIA-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, and consumer applications - with core expertise in high-efficiency power management ICs.
The ISL91107IIA-EVZ belongs to Renesas' ISL91107 product line - designed specifically for ultra-compact, high-efficiency buck-boost regulation in battery-powered mobile devices where input voltage may fall above or below the required system rail.
FAQ
What is the primary function of the ISL91107IIA-EVZ?
The ISL91107IIA-EVZ is an evaluation board for the ISL91107IIAZ buck-boost regulator IC. It provides a fully assembled, tested platform to validate performance - including efficiency, transient response, soft-start behavior, and mode transition - under real-world conditions using the exact IC, layout, and component selection specified in Renesas' FN8584 datasheet.
Does the ISL91107IIA-EVZ support adjustable output voltage?
Yes - the ISL91107IIA-EVZ evaluates the ISL91107IIAZ, which features an adjustable output configuration. It uses a 187kΩ/60.4kΩ resistor divider to set 3.3V output by default, but users can replace R1/R2 to program any output from 1V to 5.2V, as confirmed in the "Applications Information" section (Page 10) of FN8584 Rev 3.00.
What are the key external components included on the ISL91107IIA-EVZ board?
The ISL91107IIA-EVZ includes a 1µH shielded inductor (TOKO DFE322512C), 22µF X5R input capacitor (Murata GRM188R61A226ME15D), two 22µF X5R output capacitors, and precision feedback resistors (187kΩ/60.4kΩ). All match the recommended values and vendors listed in Tables 1 and 2 of FN8584 Rev 3.00.
Can the ISL91107IIA-EVZ be used to test forced PWM mode?
Yes - the ISL91107IIA-EVZ exposes the MODE pin (C3), allowing direct logic control. Driving MODE LOW enables forced PWM operation, while driving it HIGH selects auto PFM mode. This functionality is documented in the Pin Descriptions table (Page 2) and PFM/PWM Transition section (Page 5) of FN8584 Rev 3.00.
Is thermal performance characterized on the ISL91107IIA-EVZ board?
Yes - the ISL91107IIA-EVZ implements the thermal layout guidelines from FN8584 Rev 3.00 (Page 11), including short PGND traces, dedicated GND plane separation, and optimal capacitor placement. Thermal shutdown triggers at +150°C (typical), with 30°C hysteresis, and recovery occurs at +120°C - all verified during board-level testing per datasheet Absolute Maximum Ratings (Page 4).
ISL91107IIA-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:
- -
- Voltage - Input:
- 2A
- Regulator Topology:
- 1.8V ~ 5.5V
- Frequency - Switching:
- Buck-Boost
- Contents:
- 2.5MHz
- Utilized IC / Part:
- Board(s)
- Power - Output:
- ISL91107
ISL91107IIA-EVZ FAQ
1.How can I place an order for ISL91107IIA-EVZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL91107IIA-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 ISL91107IIA-EVZ reliable?
The price and inventory of ISL91107IIA-EVZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL91107IIA-EVZ is usually 5 days.
3.What payment methods are accepted for ISL91107IIA-EVZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL91107IIA-EVZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL91107IIA-EVZ?
ISL91107IIA-EVZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL91107IIA-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 ISL91107IIA-EVZ?
For technical support, including ISL91107IIA-EVZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL91107IIA-EVZ requirements.
6.How does Aetrix verify that ISL91107IIA-EVZ is sourced from the original manufacturer or authorized distributors?
All ISL91107IIA-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 ISL91107IIA-EVZ meets industry standards.
7.What is the process for return or replacement of ISL91107IIA-EVZ?
All ISL91107IIA-EVZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL91107IIA-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 ISL91107IIA-EVZ part is unused and in its original packaging.
Return procedure for ISL91107IIA-EVZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL91107IIA-EVZ Tags
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