ISL6539IA

Special Purpose Regulators Overview

The ISL6539IA is a dual-output voltage regulator controller manufactured by Intersil, designed for DDR DRAM and SDRAM applications. It operates with an input voltage range of 3.3V to 18V and provides adjustable output voltages from 0.9V to 5.5V. The device features two independent outputs and functions within an operating temperature range of 0°C to 70°C. It is housed in a 28-SSOP package with a width of 3.90mm. This component is classified as a special-purpose regulator IC intended for memory power supply control.

Special Purpose Regulators Feature Summary

• Dual-output architecture supporting simultaneous regulation for memory subsystems
• Integrated control logic for DDR DRAM and SDRAM voltage regulation
• Wide input voltage compatibility for flexible system integration

Special Purpose Regulators Applications

• DDR DRAM power supply control
• SDRAM voltage regulation
• Memory controller interface circuits

Special Purpose Regulators Procurement Notes

Verify the specific suffix 'IA' against official Renesas documentation to confirm exact electrical tolerances and temperature grades, as suffixes often denote specific manufacturing variants. Confirm RoHS compliance status, as current listings indicate non-compliance for this part number. Check for obsolescence status and potential end-of-life restrictions before finalizing procurement plans.

Special Purpose Regulators Selection Notes

Select this component when designing systems requiring dedicated dual-channel regulation for legacy or standard DDR/SDRAM architectures. Ensure the 28-SSOP package fits the PCB layout constraints. Verify that the 0°C to 70°C industrial temperature range meets the operational environment requirements. Compare against newer multi-phase controllers if higher efficiency or lower ripple is required for modern high-speed memory interfaces.

Special Purpose Regulators Part Context

The ISL6539 series belongs to Intersil's portfolio of specialized power management integrated circuits focused on memory applications. As part of the broader Renesas Electronics lineup following corporate acquisitions, these components serve niche markets requiring precise voltage regulation for dynamic random-access memory. The series typically includes variants optimized for different speed grades and power profiles.

Special Purpose Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult official Renesas cross-reference guides for compatible alternatives.