ISL85003FRZ

Voltage Regulators - DC DC Switching Regulators Overview

The ISL85003FRZ is a high-efficiency 3A synchronous buck switching regulator manufactured by Renesas Electronics Corporation. It operates within an input voltage range of 4.5V to 18V and provides an adjustable output voltage from 0.8V to 18V with ±1% accuracy. The device features a fixed internal switching frequency of 500kHz, which can be externally synchronized up to 2MHz. Packaged in a compact 12-lead DFN (4mm x 3mm) with exposed pad, it supports surface mount installation and functions reliably across a junction temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates synchronous rectification for enhanced power conversion efficiency
• Supports external clock synchronization for flexible system timing
• Includes comprehensive protection mechanisms such as overcurrent, thermal overload, and undervoltage lockout

Voltage Regulators - DC DC Switching Regulators Applications

• Network and communication equipment
• Industrial process control systems
• Embedded computing platforms
• Standard 12V power distribution architectures

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'FRZ' corresponds to the tube packaging configuration and RoHS compliance status directly on the manufacturer's official datasheet or authorized distributor documentation. Confirm that the 12-lead DFN package dimensions match your PCB footprint requirements before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing point-of-load converters requiring 3A continuous current capability from single-rail inputs. It is suitable for applications needing adjustable output voltages with tight tolerance. Ensure adequate thermal management is designed into the PCB layout due to the exposed pad requirement for heat dissipation in the small form factor package.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the ISL85003 series of synchronous buck regulators, originally developed by Intersil and now managed by Renesas Electronics. The series is designed to replace older standard buck controllers by integrating power switches, thereby reducing external component count and solution size for modern portable and industrial electronics.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The ISL85003AFRZ is a confirmed substitute within the same product family offering identical electrical specifications and pinout compatibility.