ISL6520ACBZA-T

DC DC Switching Controllers Overview

The ISL6520ACBZA-T is a synchronous buck DC-DC switching controller manufactured by Renesas Electronics Corporation. It operates at a fixed switching frequency of 300kHz and supports up to 100% maximum duty cycle. The device features a single positive output configuration with integrated transistor drivers for synchronous rectification. It requires a supply voltage (Vcc/Vdd) ranging from 4.5V to 5.5V. The component is housed in an 8-SOIC package with a width of 3.90mm, designed for surface mount installation. It includes phase control characteristics but lacks clock synchronization capabilities.

DC DC Switching Controllers Feature Summary

• Integrated synchronous rectification capability for improved efficiency
• Fixed 300kHz switching frequency operation
• Supports 100% maximum duty cycle for low dropout applications
• Single-channel positive output with dedicated transistor drivers

DC DC Switching Controllers Applications

• General-purpose DC-DC conversion systems
• Embedded power supply designs requiring synchronous topology
• Industrial control board voltage regulation

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'T' indicates tape and reel packaging rather than tube, as this affects handling procedures. Confirm RoHS compliance status, as the base ISL6520 series may have non-compliant variants. Check current lifecycle status, as older Renesas PMICs are frequently marked as obsolete or not recommended for new designs. Ensure the 8-SOIC footprint matches the target PCB layout constraints.

DC DC Switching Controllers Selection Notes

Select this controller when a single-phase synchronous buck solution is required without external clock sync needs. It is suitable for applications where a fixed 300kHz frequency aligns with EMI requirements. Consider the 4.5V to 5.5V Vcc range for compatibility with standard logic supplies. Evaluate thermal performance within the 8-SOIC package if high continuous current loads are expected.

DC DC Switching Controllers Part Context

This component belongs to the ISL6520 family of synchronous buck controllers from Renesas (formerly Intersil). It serves as a foundational power management IC for single-output applications. The family typically shares core architecture with variants differing in packaging, temperature grades, or pinout configurations. It represents a legacy product line often replaced by newer integrated power stages.

DC DC Switching Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Users should consult official Renesas cross-reference tools for direct replacements.