ISL80019FRZ-T

Voltage Regulators - DC DC Switching Regulators Overview

The ISL80019FRZ-T is a synchronous buck regulator from the Renesas ISL80019 series, housed in an 8-WFDFN package with an exposed pad. It delivers up to 1.5A of continuous output current from a 2.7V to 5.5V input supply. The device operates at a fixed 2MHz switching frequency and provides an adjustable output voltage range from 600mV to 5.5V. It features peak current mode control for fast transient response and integrates low RDS(ON) PMOS and NMOS switches. The component supports both PFM and PWM modes for optimized light-load efficiency and noise reduction.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates low RDS(ON) PMOS high-side and NMOS low-side MOSFETs to maximize conversion efficiency.
• Eliminates the need for a bootstrap capacitor due to the PMOS high-side switch architecture.
• Supports selectable PFM or PWM operation modes to optimize performance under varying load conditions.
• Includes comprehensive protection mechanisms such as overcurrent, short-circuit, and thermal shutdown.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable consumer electronics requiring compact power solutions
• Battery-powered devices needing high efficiency at light loads
• Embedded systems utilizing single-cell lithium-ion power sources

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official documentation, as standard variants like ISL80019AFRZ-T7A are listed as obsolete. Confirm availability through authorized channels or approved second-source distributors. Ensure the package type matches the required footprint and that humidity sensitivity handling protocols are followed during assembly.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a small form factor and high efficiency are critical for battery-operated applications. The 2MHz switching frequency allows for the use of smaller external inductors compared to lower-frequency alternatives. Consider the thermal performance of the TDFN-EP-8 package for heat dissipation requirements in dense layouts.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the ISL80019 family of highly efficient monolithic synchronous step-down DC/DC converters. The family shares similar architectural features but may vary in temperature ratings, switching frequencies, or packaging options. The ISL80019 series is designed to provide superior transient response while minimizing the overall solution size.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for direct substitutes within the ISL80019 series, such as ISL80019AIRZ-T or ISL80019AFRZ-T7A, ensuring pin compatibility and electrical parameter alignment. Verify if alternative packages or temperature grades meet the design requirements without necessitating board layout changes.