ISL6522CRZ

DC DC Switching Controllers Overview

The ISL6522CRZ is a Buck and Synchronous Rectifier Pulse-Width Modulator (PWM) Controller manufactured by Renesas Electronics under the Intersil brand. It operates with a supply voltage range of 10.8V to 13.2V and supports switching frequencies from 50 kHz to 1 MHz, with a typical frequency of 200 kHz. The device provides a single output phase capable of delivering up to 500 mA, with an adjustable output voltage range of 800 mV to 12 V. It features a maximum duty cycle of 100% and includes integrated synchronous rectification. The component is housed in a 16-pin QFN EP package (5x5 mm) and is rated for operation between 0°C and +70°C.

DC DC Switching Controllers Feature Summary

• Integrated synchronous rectifier controller for buck topology applications
• Adjustable switching frequency ranging from 50 kHz to 1 MHz
• Supports 100% maximum duty cycle for low dropout operation
• Includes soft-start, enable, frequency control, and phase control features

DC DC Switching Controllers Applications

• Point-of-load DC-DC conversion modules
• Server and workstation power distribution networks
• Telecommunications equipment power supplies
• Industrial control system power regulation

DC DC Switching Controllers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to potential availability constraints. Confirm RoHS compliance status and moisture sensitivity level prior to assembly. Check for specific ordering suffixes that may indicate packaging variations or environmental certifications. Ensure storage conditions meet humidity sensitivity requirements to prevent damage before reflow soldering.

DC DC Switching Controllers Selection Notes

Select this controller for designs requiring a single-phase synchronous buck solution with programmable frequency. Consider the 16-QFN package for space-constrained PCB layouts. Evaluate thermal performance given the 500 mA output capability and operating temperature range. Compare against alternative PMICs if multiple phases or different voltage ranges are required for the target application.

DC DC Switching Controllers Part Context

The ISL6522CRZ belongs to the ISL6522 series of power management ICs designed for high-efficiency voltage regulation. It serves as a core component in DC-DC converter circuits, replacing discrete driver solutions. The part integrates gate drivers for both high-side and low-side MOSFETs, simplifying the design of synchronous buck converters compared to non-synchronous alternatives.

DC DC Switching Controllers Replacement Considerations

ISL6522CRZ is listed as a direct replacement for the discontinued ISL6522CR.