ISL80030AFRZ-T

Voltage Regulators - DC DC Switching Regulators Overview

The ISL80030AFRZ-T is a monolithic synchronous buck DC/DC converter delivering up to 3A output current from a 2.7V to 5.5V input supply. It operates at a fixed 2MHz switching frequency with 35μA quiescent current. The device integrates low rDS(ON) PMOS and NMOS FETs, enabling 100% duty cycle operation with less than 210mV dropout at full load. It features peak efficiency exceeding 95%, internal soft-start, and comprehensive protection including overcurrent, short-circuit, over-temperature, and undervoltage lockout.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates low on-resistance PMOS high-side and NMOS low-side MOSFETs to maximize efficiency and eliminate the need for a bootstrap capacitor.
• Configured for PWM continuous conduction mode to reduce output noise and RF interference during operation.
• Supports 100% duty cycle operation, allowing minimal voltage drop even when input voltage approaches output voltage levels.

Voltage Regulators - DC DC Switching Regulators Applications

• High-performance printer power sequencers and I/O expanders
• Client devices such as 5G to Wi-Fi converters
• Cloud-connected visual doorbells

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'FRZ-T' indicates tape-and-reel packaging configuration. Confirm the 'A' designation corresponds to the 2MHz fixed switching frequency variant. Ensure compatibility with 2x2mm DFN footprint requirements and exposed pad thermal management needs. Validate RoHS compliance status against current manufacturing standards.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for applications requiring compact size and high efficiency under light loads. The 2MHz frequency allows smaller inductors compared to lower-frequency alternatives. Choose this part over the ISL80031 if reduced electromagnetic interference via PWM operation is prioritized over maximum light-load efficiency.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the ISL80030x/ISL80031x family of highly efficient synchronous step-down converters. It shares the same 8-lead 2mm x 2mm DFN package topology with other members like the ISL80030 and ISL80031. The primary distinction lies in its specific switching frequency configuration and modulation scheme within the series.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct functional substitutes include the ISL80030AFRZ-T7A or ISL80030DEMO1Z evaluation variants. Cross-reference pinouts and thermal pad configurations when replacing with similar Renesas buck converters to ensure mechanical and electrical compatibility.