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ISL8009BIRZ-T-IL is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists Intersil. Its product description is IC REG. Review the specifications below when checking this part for your BOM.
The ISL8009BIRZ-T-IL is a high-efficiency synchronous buck switching regulator IC manufactured by Intersil, now part of Renesas Electronics. It operates at a fixed switching frequency of 1.6 MHz and utilizes a unique 3-level buck topology to significantly reduce inductor size while maintaining high efficiency across load ranges. The device features an input voltage range compatible with single-cell lithium-ion battery applications and integrates protection mechanisms including over-current, over-temperature, and undervoltage lockout.
Verify the manufacturer status as Intersil products are now managed under Renesas Electronics. Confirm the specific suffix -T-IL indicates tape and reel packaging if required for automated assembly. Check for product discontinuation notices or lifecycle status updates on the official Renesas website before finalizing procurement plans.
Select this component when designing for single-cell lithium-ion inputs where space constraints limit inductor size. The 1.6 MHz frequency allows for smaller magnetic components compared to lower-frequency alternatives. Ensure the application requires synchronous rectification for optimal efficiency at moderate loads typical in mobile consumer electronics.
This part belongs to the Intersil ISL8009 family of synchronous buck regulators. Following Renesas Electronics' acquisition of Intersil, these analog power management parts are integrated into the broader Renesas portfolio. The ISL8009 series is specifically targeted at mobile and portable applications demanding high power density and efficiency from single-cell sources.
Consult Renesas Electronics legacy documentation for direct pin-compatible substitutes. Verify electrical compatibility with alternative synchronous buck regulators offering similar 1.6 MHz operation and 3-level topology features. Ensure replacement parts support the same QFN-8 package and input voltage range.
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