ISL6523CB

Special Purpose Regulators Overview

The ISL6523CB is a synchronous buck DC-DC switching controller manufactured by Renesas Electronics Corporation. It operates with a fixed switching frequency of 200kHz and supports a maximum duty cycle of 100%. The device accepts an input supply voltage range of 10.8V to 13.2V and provides a single positive output configuration. Housed in a 14-SOIC package, it integrates features such as enable control, frequency control, phase control, and soft-start functionality. The component is designed for surface mount installation and functions within an ambient temperature range of 25°C to 70°C.

Special Purpose Regulators Feature Summary

• Synchronous rectification architecture for improved efficiency
• Integrated soft-start capability to manage inrush current
• Phase control support for multi-phase parallel operation
• Frequency control interface for system synchronization

Special Purpose Regulators Applications

• Single-output step-down voltage regulation
• Central point-of-load power distribution
• Industrial equipment power supplies
• Communication infrastructure backend power

Special Purpose Regulators Procurement Notes

Verify the specific suffix 'CB' against the manufacturer's official documentation to confirm exact pinout and electrical tolerances. Confirm RoHS compliance status, as this variant may not meet current environmental standards. Check component availability and lifecycle status prior to design finalization. Ensure the 14-SOIC footprint matches the target PCB layout requirements. Validate thermal performance within the specified operating temperature range during prototype testing.

Special Purpose Regulators Selection Notes

Select this controller when a single-channel synchronous buck topology is required with integrated phase control capabilities. The fixed 200kHz frequency offers a balance between component size and efficiency. Consider the 10.8V to 13.2V input range suitability for standard 12V systems. Evaluate the 14-SOIC package constraints against available board space. Compare against other models in the ISL6522 series if different channel counts or package options are needed.

Special Purpose Regulators Part Context

The ISL6523CB belongs to the ISL6522 family of synchronous buck controllers from Renesas. This family targets high-efficiency power conversion applications requiring precise voltage regulation. The CB suffix typically denotes specific packaging or material specifications within the product line. Related models include the ISL6522ACB and ISL6524CB, which offer variations in channel count and package type while sharing similar control architectures.

Special Purpose Regulators Replacement Considerations

Public confirmed substitute part numbers: None.