ISL6526IR

DC DC Switching Controllers Overview

The ISL6526IR is a single synchronous buck pulse-width modulation (PWM) controller designed for voltage mode control applications. It operates with an input voltage range of 2.97 V to 3.63 V, centered on a nominal 3.3 V supply. The device supports a maximum switching frequency of 340 kHz and delivers a maximum output current capability of 2 A. Packaged in a 16-pin QFN (5x5 mm) format with an exposed pad, it functions within a temperature range of -40 °C to 85 °C.

DC DC Switching Controllers Feature Summary

• Single synchronous buck PWM controller architecture
• Voltage mode control technique implementation
• Integrated transistor driver output stage

DC DC Switching Controllers Applications

• Step-down DC-DC converter systems
• Central processing unit (CPU) core voltage regulation
• On-board power management modules

DC DC Switching Controllers Procurement Notes

Verify the specific suffix (e.g., TR5146 or T) against the manufacturer's official documentation to confirm packaging type and reel specifications. Ensure the component meets RoHS compliance requirements if lead-free status is mandatory for the assembly process. Cross-reference the exposed pad thermal design with the PCB layout guidelines provided in the datasheet to ensure proper heat dissipation and electrical isolation.

DC DC Switching Controllers Selection Notes

Select this controller for applications requiring a fixed 3.3 V input source and moderate current loads up to 2 A. The voltage mode operation suits designs prioritizing stability over transient response speed compared to current mode alternatives. The compact 16-QFN package is suitable for space-constrained boards where thermal performance via the exposed pad can be managed through adequate copper area routing.

DC DC Switching Controllers Part Context

This component belongs to Intersil's family of switching controllers, specifically targeting synchronous buck topologies. It serves as a dedicated power management IC for low-voltage digital logic circuits. The device integrates the necessary control logic and drivers to manage external N-channel MOSFETs, simplifying the bill of materials for standard step-down power stages.

DC DC Switching Controllers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with direct replacements by matching the 16-QFN pinout, voltage mode control scheme, and 340 kHz frequency limits. Ensure any alternative device supports the same 2.97 V to 3.63 V input range and 2 A output current specification.