ISL8002AIRZ-T7A

Voltage Regulators - DC DC Switching Regulators Overview

The ISL8002AIRZ-T7A is a monolithic synchronous buck regulator IC from Renesas Electronics, part of the ISL8002 series. It delivers up to 2A continuous output current with an input voltage range of 2.7V to 5.5V and adjustable output from 600mV to 5.5V. Operating at a 2MHz switching frequency, it utilizes peak current mode control for fast transient response. The device features integrated PMOS high-side and NMOS low-side MOSFETs, eliminating the need for a bootstrap capacitor. It supports selectable PFM or PWM modes and includes comprehensive protection against overcurrent, short circuits, and over-temperature.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates low RDS(ON) PMOS and NMOS power switches to maximize efficiency without requiring a bootstrap capacitor.
• Supports selectable PFM or PWM operation modes to optimize light-load efficiency or reduce RF interference.
• Features peak current mode control architecture enabling very low duty cycle operation and superior transient response.
• Includes built-in overcurrent, short circuit, over-temperature, UVLO, and OVP protection mechanisms.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable consumer electronics powered by single-cell lithium-ion or alkaline batteries
• Wireless communication devices and IoT sensor nodes
• Embedded systems requiring compact DC/DC conversion solutions

Voltage Regulators - DC DC Switching Regulators Procurement Notes

This component is officially listed as End-of-Life (EOL) by Renesas Electronics Corporation. Distributors such as Mouser and DigiKey indicate that the product is discontinued and no longer available for sale in many regions. Procurement should focus on verifying final stock availability through authorized channels or identifying qualified replacement parts from the manufacturer's obsolescence notifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this device when a compact, high-efficiency synchronous buck converter is required for battery-powered applications. It is suitable for designs needing a 2A output capability within a small footprint. Engineers must account for its EOL status during the design phase and evaluate alternative components if long-term supply stability is a critical requirement for the product lifecycle.

Voltage Regulators - DC DC Switching Regulators Part Context

The ISL8002AIRZ-T7A belongs to the ISL8002 family of highly efficient, monolithic synchronous step-down DC/DC converters. This series is designed to deliver up to 2A of continuous output current from a 2.7V to 5.5V input supply. The family integrates low RDS(ON) MOSFETs and offers flexible compensation options, making it a standard solution for space-constrained power management in portable electronics.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Renesas has issued Product Change Notifications (PCN) regarding the discontinuation of this line. Designers should consult official PCN documents for approved substitute part numbers. Potential alternatives within the Renesas portfolio may include updated versions of the ISL8002 series or other synchronous buck regulators with similar electrical specifications and pin compatibility.

Voltage Regulators - DC DC Switching Regulators FAQ

Does the ISL8002AIRZ-T7A require an external bootstrap capacitor?

No, the device uses a PMOS high-side switch which eliminates the need for a bootstrap capacitor, thereby reducing the external component count.

What protection features are integrated into the ISL8002AIRZ-T7A?

The IC includes overcurrent protection, short-circuit protection, over-temperature protection, input undervoltage lockout (UVLO), and output overvoltage protection.