ISL6551IB

DC DC Switching Controllers Overview

The ISL6551IB is a zero voltage switching (ZVS) full-bridge PWM controller designed for isolated power systems. It operates with an operating supply voltage of 12 V and is housed in a 28-SOIC package. The device supports positive, isolation-capable output step-up and step-down DC-DC conversion. It functions as a full-bridge regulator suitable for space-constrained applications requiring efficient power management.

DC DC Switching Controllers Feature Summary

• Enables zero voltage switching to reduce switching losses in full-bridge topologies
• Supports isolated power system architectures with positive output configurations
• Provides control for both step-up and step-down DC-DC conversion modes

DC DC Switching Controllers Applications

• Isolated power supplies
• Full-bridge DC-DC converters
• Space-constrained electronic equipment

DC DC Switching Controllers Procurement Notes

Verify the specific suffix against official Intersil or Renesas documentation to confirm package type and temperature range. Ensure compatibility with your board layout requirements for the 28-SOIC footprint. Confirm moisture sensitivity levels if reflow soldering is required. Cross-reference part numbers carefully as variations may exist between bulk and tape-and-reel options.

DC DC Switching Controllers Selection Notes

Select this component when designing isolated full-bridge converters requiring ZVS capabilities. It is appropriate for applications needing integrated PWM control for step-up or step-down topologies. Consider the 28-SOIC package size relative to available PCB real estate. Verify that the 12 V supply voltage aligns with your system's power distribution network.

DC DC Switching Controllers Part Context

The ISL6551IB belongs to the ISL6551 family of controllers manufactured by Intersil, now part of Renesas Electronics. This series focuses on high-efficiency power management solutions using zero voltage switching technology. The IB suffix typically denotes a specific package variant within the broader product line.

DC DC Switching Controllers Replacement Considerations

The ISL6551IB-T is a verified alternative from Intersil, offering identical functionality in a tape-and-reel package format. Check datasheets for pinout and electrical parameter equivalence before substitution.