ISL8014AIRZ-TS2378

Voltage Regulators - DC DC Switching Regulators Overview

The ISL8014AIRZ-TS2378 is a high-efficiency, monolithic synchronous step-down DC/DC converter manufactured by Intersil. It delivers up to 4A of continuous output current from an input supply ranging from 2.7V to 5.5V. The device utilizes a current control architecture to ensure fast transient response and excellent loop stability even at high frequencies with very low duty cycles. Key electrical parameters include a selectable forced PWM or PFM mode, external synchronization capability up to 4MHz, and a quiescent supply current of 35µA in PFM mode. The unit features internal soft-start, peak current limiting, hiccup mode short circuit protection, and over-temperature protection within a compact 16-lead 4mm x 4mm QFN package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• High-efficiency synchronous buck regulator design capable of delivering up to 97% efficiency
• Integrated power-good output signal with a 1ms delay for system monitoring
• Selectable operation modes including forced PWM and PFM for optimized light-load performance
• Comprehensive protection suite featuring peak current limiting, hiccup mode short circuit protection, and over-temperature shutdown

Voltage Regulators - DC DC Switching Regulators Applications

• DC/DC Point-of-Load (POL) modules
• Power supplies for microcontrollers, FPGAs, and DSPs
• Plug-in DC/DC modules for routers and switches
• Portable instruments and test and measurement systems
• Li-ion battery powered devices and small form factor SFP modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the exact suffix against official Renesas documentation, as non-standard endings may indicate specific tape-and-reel configurations or regional variants. Confirm RoHS compliance status and lead-free markings on the component body. Check for end-of-life notifications or obsolescence warnings prior to finalizing procurement plans to ensure long-term supply chain stability.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is required for converting 2.7V to 5.5V inputs into regulated voltages up to 5.5V at 4A. It is suitable for applications demanding high efficiency and low quiescent current. Ensure the design accommodates the 16-lead QFN thermal pad requirements for adequate heat dissipation. Verify that the external synchronization frequency does not exceed the 4MHz maximum limit if clocking is utilized.

Voltage Regulators - DC DC Switching Regulators Part Context

The ISL8014 belongs to the Intersil family of high-efficiency synchronous buck regulators. It is pin-compatible with the ISL8013, allowing for potential design upgrades or replacements within existing layouts. The device is part of the broader portfolio of power management integrated circuits designed for portable and industrial electronics requiring robust voltage regulation in small footprints.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The ISL8013 is officially documented as pin-compatible with the ISL8014 series. Designers should verify specific electrical parameter differences between these two models before substitution to ensure compatibility with the target application's performance requirements.