ISL6526IR-TR5146

DC DC Switching Controllers Overview

The ISL6526IR-TR5146 is a single-phase voltage-mode PWM switching controller designed for high-current CPU core voltage regulation. It operates with a fixed switching frequency of 340 kHz and supports output voltages ranging from 800 mV to 5 V. The device delivers up to 2 A of output current capability within its control loop architecture. It is housed in a 16-lead QFN (5x5 mm) package with an exposed pad for thermal management. The component functions within a temperature range of -40°C to +85°C and requires a 3.3 V supply voltage for internal logic operation.

DC DC Switching Controllers Feature Summary

• Integrates a dedicated charge pump circuit to drive high-side N-channel MOSFETs efficiently without external bootstrap components.
• Features a programmable soft-start mechanism to limit inrush current during power-up sequences.
• Includes comprehensive protection features such as over-current protection and undervoltage lockout for reliable operation.

DC DC Switching Controllers Applications

• CPU core voltage regulation in desktop and mobile computing platforms
• Graphics processing unit (GPU) power delivery systems
• Point-of-load (POL) DC-DC conversion for high-density server applications

DC DC Switching Controllers Procurement Notes

Verify the specific suffix TR5146 against the manufacturer's official datasheet to confirm packaging and tape-and-reel specifications. Ensure compatibility with existing PCB footprint dimensions, particularly the 16-QFN exposed pad thermal requirements. Confirm that the source document explicitly lists this part number as active or end-of-life status prior to integration planning.

DC DC Switching Controllers Selection Notes

Select this component when designing single-phase buck converters requiring precise voltage-mode control for CPU or GPU loads. Consider the 340 kHz switching frequency for balancing efficiency and passive component size. Evaluate the 16-QFN package for thermal dissipation needs in space-constrained designs. Verify input voltage ranges and load transient requirements match the controller's operational limits.

DC DC Switching Controllers Part Context

The ISL6526 series belongs to Intersil's portfolio of high-performance power management integrated circuits. This specific model is part of the PMIC category, focusing on switching controllers for processor power supplies. It complements other multi-phase controllers by providing a robust solution for single-phase high-current applications where cost and board space are critical factors.

DC DC Switching Controllers Replacement Considerations

Publicly confirmed substitute part numbers for ISL6526IR-TR5146 were not identified in the provided documentation. Users should consult the manufacturer's official cross-reference guides or engineering change notices for verified alternatives. Direct pin-to-pin replacements may require validation of electrical parameters and thermal characteristics.