ISL80030AFRZ-T7A

Voltage Regulators - DC DC Switching Regulators Overview

The ISL80030AFRZ-T7A is a monolithic synchronous step-down DC/DC converter manufactured by Renesas Electronics Corporation. It delivers up to 3A of continuous output current from an input supply ranging from 2.7V to 5.5V. The device utilizes peak current mode control architecture for low duty cycle operation and operates at a switching frequency of 1MHz or 2MHz. It features integrated low RDS(ON) PMOS high-side and NMOS low-side MOSFETs, eliminating the need for a bootstrap capacitor. The converter supports 100% duty cycle operation and offers peak efficiency up to 95%. It is housed in a space-saving 8-lead 2mm x 2mm DFN package with an exposed pad.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates low RDS(ON) PMOS high-side and NMOS low-side MOSFETs to maximize efficiency and reduce external component count by eliminating the bootstrap capacitor requirement.
• Utilizes PWM pulse width modulation operation configured for fast transient response, helping to reduce output noise and RF interference.
• Includes comprehensive protection mechanisms such as overcurrent, short-circuit, over-temperature/thermal, negative current, VIN undervoltage lockout, and VOUT overvoltage protection.

Voltage Regulators - DC DC Switching Regulators Applications

• Home humidifiers with interconnected and flexible power options
• Printer power sequencers and I/O expanders (PPC or MFP)
• Client device high-speed 5G to Wi-Fi converters
• 400ZR optical modules for DCI links
• Cloud-connected visual doorbells

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix T7A indicates tape and reel packaging configuration. Confirm RoHS compliance status through official documentation. Check for obsolescence notices or product change notifications affecting availability. Ensure the supplier provides valid traceability for the Renesas/Intersil brand origin. Validate that the 2x2mm DFN package matches design requirements.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact synchronous buck converter is required for single-cell lithium-ion battery applications. Choose the ISL80030 variant specifically for designs requiring PWM operation for superior transient response and lower output noise compared to PFM modes. Consider the 2mm x 2mm footprint constraint and the need for integrated PMOS high-side drive which simplifies the bill of materials.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the ISL80030x/ISL80031x family of highly efficient monolithic synchronous step-down DC/DC converters. The family shares common architectural features including peak current mode control and integrated power FETs. The ISL80030 series is distinguished by its PWM configuration, whereas the ISL80031 series uses PFM for higher light-load efficiency. Both share the same physical package and input/output voltage ranges.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes within the same family include the ISL80030FRZ-T7A and ISL80030AIRZ-T7A. These variants share identical electrical characteristics and pinouts but may differ in temperature grades or initial manufacturing batches. Verify that any replacement maintains the PWM control scheme required for specific noise-sensitive applications.