ISL95855CIRTZ

Special Purpose Regulators Overview

The ISL95855CIRTZ is a multi-phase switching controller compliant with Intel IMVP8 standards, designed for notebook and desktop applications. It features three outputs: VR A (configurable 3/2/1 phase), VR B (2/1 phase), and VR C (1 phase). The device supports input voltages from 4.5V to 25V and output voltages ranging from 0V to 1.52V. Output currents are specified at 27A, 85A, and 120A respectively. It utilizes Robust Ripple Regulator technology for fast transient response and operates within a temperature range of -40°C to 100°C in a 48-TQFN package.

Special Purpose Regulators Feature Summary

• Implements Robust Ripple Regulator technology for variable switching frequency and improved light-load efficiency via diode emulation mode.
• Supports lossless inductor DCR current sensing with thermal compensation or precision resistor-based current detection.
• Features programmable SVID address and shared serial control bus for efficient CPU communication and board area reduction.

Special Purpose Regulators Applications

• Intel IMVP8 compatible notebook processors
• Desktop computer microprocessors
• System agent rail power regulation

Special Purpose Regulators Procurement Notes

Verify component status as the manufacturer has issued discontinuation notifications. Confirm availability through authorized distributors only. Check for moisture sensitivity level compliance during storage and handling. Validate that the specific suffix matches required packaging and lead-free specifications before finalizing orders.

Special Purpose Regulators Selection Notes

Select this controller for designs requiring IMVP8 compliance with flexible phase configuration across core, graphics, and system agent rails. Ensure compatibility with Intel DrMOS stages or discrete drivers. Consider the 48-lead TQFN footprint for space-constrained layouts requiring high-density power management integration.

Special Purpose Regulators Part Context

Part of the ISL95855 series offering robust power solutions for Intel CPUs. Utilizes R3 modulation for superior transient performance compared to traditional controllers. Designed to replace older multi-chip approaches by integrating control and protection for multiple voltage rails into a single compact package.

Special Purpose Regulators Replacement Considerations

• ISL95855CHRTZ