ISL6527ACR

DC DC Switching Controllers Overview

The ISL6527ACR is a single synchronous buck pulse-width modulation (PWM) controller designed for DC/DC step-down converters. It implements a complete control and protection scheme, driving N-Channel MOSFETs in a synchronous topology. The device features voltage-mode PWM control with a high-bandwidth error amplifier for fast transient response. It supports a full 0% to 100% duty cycle range and includes lossless, programmable overcurrent protection. Operating from a 3.3V to 5V input supply, it integrates upper MOSFET DS(ON) monitoring to inhibit PWM operation appropriately, simplifying implementation and improving efficiency.

DC DC Switching Controllers Feature Summary

• Implements complete control and protection scheme for DC/DC step-down converters
• Drives N-Channel MOSFETs in a synchronous buck topology
• Features simple single-loop voltage-mode PWM control design
• Integrates lossless, programmable overcurrent protection

DC DC Switching Controllers Applications

• Single-phase synchronous buck converter designs
• Point-of-load (POL) voltage regulation modules
• General-purpose DC/DC step-down power supplies

DC DC Switching Controllers Procurement Notes

Verify component status carefully as the ISL6527ACR may be listed as discontinued or obsolete by certain distributors. Confirm RoHS compliance status, as some sources indicate non-compliance for this specific part number variant. Ensure the 16-QFN package matches your PCB footprint requirements before ordering. Cross-reference datasheet revisions to confirm pinout and electrical characteristics remain consistent with your design specifications.

DC DC Switching Controllers Selection Notes

Select this controller for applications requiring a single-phase synchronous buck solution with integrated protection. It is suitable for designs needing fast transient response and full duty cycle capability. Consider the 16-QFN package size for space-constrained layouts. Verify that the input voltage range of 2.97V to 3.63V aligns with your system's power rail. Ensure external components support the required switching frequency and current limits.

DC DC Switching Controllers Part Context

The ISL6527ACR belongs to the Intersil ISL6527 family of synchronous buck controllers. This family is known for integrating advanced control features into a compact package. The AC suffix typically denotes a specific temperature grade or package variant within the broader product line. Intersil, now part of Renesas Electronics, specializes in high-performance analog and mixed-signal integrated circuits for various industrial and consumer applications.

DC DC Switching Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Check Renesas official legacy documents for potential replacements.