AOZ71146QI
数字多相控制器
Status: New
The AOZ71146QI is a high performance digital & analog hybrid multiphase buck controller designed in compliance with Intel IMVP8/9/9.1/9.2/9.3 platform specifications. It provides four output rails (up to 2+2+1+1) and supports 5 separate SVID domains: Up to 2 phases for core voltage domain (IA), 1 phase for graphics voltage domain (GT), 2 phase for Auxiliary domain (SA) and 1 phase for LPCORE rail domain, as well as the PSYS domain’s reporting functions, incorporated into a single SVID interface. AOS offers a novel AOS Advanced Transient Modulator (A2TM). It combines an advanced variable frequency hysteretic peak current mode control with proprietary phase current sensing scheme for fast transient response and low system cost. The control loop enhances light-load efficiency by seamlessly entering DCM mode of operation. Autonomous Phase Management also assures optimized efficiency and power loss during light load with single phase DCM mode.
Parametrics
Status | New |
Interface Protocol | IMVP SVID / SMBUS |
Power Stage Support | DrMOS, SPS |
Max Phase Configuration | 2+1+2+1 |
# Outputs | 3 |
Package | QFN6x6-52L |
Application | Notebook |
Min Vin (V) | 2.50 |
Max Vin (V) | 24 |
Min VOUT (V) | 0 |
Max VOUT (V) | 1.95 |
Operating Freq (kHz) | 300 - 1800 |
Std. Footprint | Yes |
Programmability | SMBUS / MTP /RAM |
Parametrics
Status | New |
Interface Protocol | IMVP SVID / SMBUS |
Power Stage Support | DrMOS, SPS |
Max Phase Configuration | 2+1+2+1 |
# Outputs | 3 |
Package | QFN6x6-52L |
Application | Notebook |
Min Vin (V) | 2.50 |
Max Vin (V) | 24 |
Min VOUT (V) | 0 |
Max VOUT (V) | 1.95 |
Operating Freq (kHz) | 300 - 1800 |
Std. Footprint | Yes |
Programmability | SMBUS / MTP /RAM |
Features
- 2.5V to 24V VIN input supply voltage
- Four output rails: Default 2/1 + 2/1 + 1 + 1 phase. configurable to 2/1+1+2/1+1 phase arrangement
- Panther Lake U/H, Wildcat Lake N, Nova Lake H platforms
- Support discrete Inductor and 2 phase coupled inductor
- Autonomous phase management including phase shedding and auto DCM to optimize power loss
- Support baby phase to maximize light load efficiency
- Digital & analog hybrid controller with SMBus programmability and lowest power consumption
- SVID interface to CPU compliant with IMVP8, 9, 9.1, 9.2 and the latest 9.3 specifications
- Support fast V-Mode (FVM) - Differential remote sensing to achieve 0.5% regulated VOUT accuracy
- Programmable switching frequency from 300kHz up to 1.8MHz
- Low quiescent current: 5.4mA at PS0 for 2+2+1+1 configuration
- Supports industry standard DrMOS or SPS power stages
- User friendly GUI for compensation and configurations with minimal external RC components
- ECS programmability for configurations with built-in NVM MTP and RAM
- Proprietary, high performance AOS Advanced Transient Modulator (A2TM) control scheme
- System input power monitoring (both PSYS and VSYS)
- 300kHz to 1.8MHz programmable switching frequency
- Acoustic noise suppression
- Output Under-Voltage Protection (UVP)
- Output Over-Voltage Protection (OVP)
- Total and Per-phase Over-Current Protection (OCP)
- Over-Temperature Protection (OTP)
- Over-Temperature Waning (OTW) via SMBALERT
- QFN6x6-52L, compliant to Intel CFP requirement
Documentation
| Title | Type | Date | File |
|---|---|---|---|
| AOZ71146QI Datashort | Datasheets | 2026-03-18 | |
| QFN6x6_52L_EP1_S | Package | 2024-05-27 | |
| QFN6x6_52L_EP1_S Tape & Reel | Tape & Reel | 2025-07-29 |
Package Details
| Package Name | Dimensions | Package Specifications | Packaging Method |
|---|---|---|---|
| QFN6x6_52L_EP1_S | 6.0x6.0x0.9 | Tape and Reel |