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ISL62776IRTZ - Multiphase PWM Regulator for AMD CPUs Using SVI2

Product Overview

ISL62776IRTZ is fully compliant with AMD Serial VID Interface 2.0 (SVI2) and provides a complete solution for microprocessor and graphics processor core power. The ISL62776 controller supports two Voltage Regulators (VRs) that use external drivers for maximum flexibility. The Core VR can be configured for 4-, 3-, 2-, or 1-phase operation and the SOC VR supports 1-phase operation. The two VRs share a serial control bus to communicate with the AMD CPU and achieve lower cost and smaller board area compared with two-chip solutions.

Product Features

Supports AMD SVI 2.0 serial data bus interface

Serial VID clock frequency range: 100kHz to 25MHz

Dual output controller with PWM output

Precision voltage regulation

0.5% system accuracy over-temperature

0.5V to 1.55V in 6.25mV steps

Enhanced load-line accuracy

Supports multiple current sensing methods

Lossless inductor DCR current sensing

Precision resistor current sensing

Programmable phase operation for both Core and SOC VR outputs

Superior noise immunity and transient response

Output current and voltage telemetry

Small footprint 40 Ld 5x5 TQFN packa

Applications

AMD CPU/GPU core power

Notebook computers

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