ISL62881BHRTZ

Special Purpose Regulators Overview

The ISL62881BHRTZ is a single-phase PWM buck regulator controller designed for Intel IMVP-6.5™ mobile CPU and GPU core power supplies. It operates with an input voltage range of 4.5V to 20V and provides a programmable output voltage from 0.013V to 1.5V. The device supports up to 30A output current and utilizes Robust Ripple Regulator (R3) technology for variable switching frequency, enhancing transient response and light-load efficiency. It features a 7-bit VID input, differential remote sensing, and lossless inductor DCR current sensing within a 28-lead 4x4 TQFN package.

Special Purpose Regulators Feature Summary

• Implements R3 technology for variable switching frequency to optimize transient response and efficiency
• Supports on-the-fly VID changes via 7-bit input for precise core voltage regulation
• Integrates gate driver and supports lossless inductor DCR current sensing methods
• Includes adaptive body diode conduction time reduction and user-selectable overshoot reduction

Special Purpose Regulators Applications

• Mobile CPU core power supply
• Mobile GPU core power supply
• Notebook computer processor voltage regulation

Special Purpose Regulators Procurement Notes

Verify component authenticity through authorized Renesas distributors due to end-of-life status. Confirm RoHS3 compliance and MSL level 3 handling requirements during storage and assembly. Validate package marking against official datasheet specifications to prevent counterfeit substitution.

Special Purpose Regulators Selection Notes

Select this component for single-phase IMVP-6.5 applications requiring high efficiency across varying loads. Ensure design compatibility with the 28-lead TQFN footprint and thermal management needs. Verify support for required current sensing topology and VID interface protocols before integration.

Special Purpose Regulators Part Context

Part of the ISL62881 family, which includes variants like ISL62881C and ISL62883. The BHRTZ suffix denotes specific binning or temperature grade within the standard ISL62881 series. It serves as a dedicated controller for low-voltage, high-current processor power delivery systems.

Special Purpose Regulators Replacement Considerations

ISL62881CCPU

Special Purpose Regulators FAQ

What modulation technology does the ISL62881BHRTZ use?

It uses Intersil's Robust Ripple Regulator (R3) technology, which commands variable switching frequency during load transients.

How does the ISL62881BHRTZ handle light-load efficiency?

It reduces switching frequency at light loads and offers split LGATE driver functionality to increase efficiency.