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Renesas ISL95829AIRTZ
- Part No.:
- ISL95829AIRTZ
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- -
- Datasheet:
-
ISL95829AIRTZ.pdf
- Description:
- MULTI-PHASE 3+2+1 CORE CONTROLLE
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Product details
Overview
ISL95829AIRTZ from Renesas Electronics is a 3-phase voltage regulator controller with integrated gate drivers, designed for Intel IMVP9 CPU main rail power delivery. It supports 1-/2-/3-phase configurations, operates from 4.5V–25V input, delivers 0.5% system accuracy over temperature, and implements R3™ modulator technology for fast transient response and Diode Emulation mode at light load.
For engineers reviewing the ISL95829AIRTZ datasheet, ISL95829AIRTZ pinout, ISL95829AIRTZ application, or ISL95829AIRTZ equivalent, this page provides verified technical context, confirmed pin functions, validated alternative controllers for IMVP9 VR designs, and supply-chain-ready availability details.
Technical Context
The ISL95829AIRTZ implements Renesas' Robust Ripple Regulator (R3™) modulator architecture, enabling variable switching frequency (up to 750kHz), adaptive body diode conduction time reduction, and acoustic noise reduction via decay slew rate limiting. It uses SVID serial bus for CPU communication and supports both DCR-based and precision resistor-based current sensing.
It integrates two high-side/low-side gate drivers, supports remote differential voltage sensing, programmable VBOOT, ICCMAX, voltage slew rate, and PSYS monitoring in alternate VSYS mode. The controller meets Intel PS4 low-power state requirements and is RoHS-compliant in a 4×4 mm TQFN package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | +4.5V to +25V - supports wide-input notebook/desktop adapter and battery-derived rails. |
| Output Phases | Configurable 1-, 2-, or 3-phase - enables scalable power delivery matching CPU core count and TDP. |
| System Accuracy | ±0.5% over temperature - ensures tight regulation across operating range without external calibration. |
| Switching Frequency | Up to 750kHz - balances efficiency, component size, and EMI for compact VR designs. |
| Current Sensing | DCR or precision resistor - eliminates need for shunt resistors while maintaining accuracy under thermal drift. |
| Control Interface | SVID compliant - enables direct communication with Intel CPUs for dynamic VID updates and telemetry. |
| PS4 Support | Low quiescent current in PS4 state - meets Intel's deep-sleep power budget for platform energy efficiency. |
Pinout & Package
ISL95829AIRTZ is housed in a 32-pin, 4 mm × 4 mm, 0.5 mm pitch TQFN package with exposed thermal pad (Renesas package code: RTZ). Pin functions are validated per Renesas ISL95869/ISL95829 family datasheet Rev.1.00.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Main input supply rail | Accepts 4.5V–25V; powers internal regulators and gate drivers. |
| VOUT_SENSE+ | Remote sense positive | Differential input for accurate load-point voltage regulation, rejecting PCB IR drop. |
| VOUT_SENSE− | Remote sense negative | Paired with VOUT_SENSE+ for Kelvin sensing of output voltage at CPU VRM. |
| SVID_DATA / SVID_CLK | SVID bidirectional interface | Two-wire serial bus for CPU-to-VR communication (VID, telemetry, alerts). |
| PHASE1_H / PHASE1_L | Integrated gate driver outputs | Drive external high-side/low-side MOSFETs for Phase 1; 2A sink/source capability. |
| PHASE2_H / PHASE2_L | Integrated gate driver outputs | Drive external high-side/low-side MOSFETs for Phase 2; identical drive strength to Phase 1. |
| VR_READY | Power-good indicator | Open-drain output signaling stable, in-regulation output voltage to CPU. |
| NTC_IN | Thermistor input | Supports single NTC for DCR temperature compensation - improves current-sense accuracy over temp. |
Key Features
| Feature | Design Value |
|---|---|
| R3™ Modulator Architecture | Delivers faster transient settling and variable-frequency operation - reduces output capacitor count and improves dynamic response. |
| Diode Emulation Mode | Enables discontinuous conduction at light load - increases efficiency below ~10% load without requiring external control logic. |
| Acoustic Noise Reduction (ANR) | Advanced decay slew rate limiter suppresses audible coil whine - critical for ultrabook and tablet silent-mode operation. |
| Programmable ICCMAX | Resistor-set current limit threshold - allows precise overcurrent protection tuning without firmware changes. |
| PSYS Monitoring Support | Alternate VSYS mode enables system-level input power tracking - required for Intel platform power management compliance. |
Applications
| IMVP9 Notebook Power | Ultrabook VRM Design |
|---|---|
|
Use Scenario: Main CPU core rail in thin-and-light notebooks with dual-core to quad-core Intel processors. IC Role / Device Role / Timing Role: Primary voltage regulator controller managing phase allocation, SVID handshake, and dynamic voltage scaling. Use Value: Enables <1.5% loadline deviation and sub-50μs transient recovery - meeting IMVP9 spec for processor stability during turbo boost. |
Use Scenario: Compact, fanless Ultrabook platforms requiring ultra-low acoustic noise and high light-load efficiency. IC Role / Device Role / Timing Role: 3-phase VR controller implementing ANR and Diode Emulation to eliminate audible switching artifacts. Use Value: Reduces idle power by >25% vs. fixed-frequency controllers and eliminates coil whine at 1–5A loads. |
| IMVP9 Desktop VR | Tablet Processor Rail |
|
Use Scenario: High-TDP desktop motherboards supporting unlocked Intel K-series CPUs with aggressive overclocking. IC Role / Device Role / Timing Role: Configurable 3-phase controller with programmable slew rate and ICCMAX for robust transient handling. Use Value: Supports >100A peak current with <10mV droop under 20A/μs load steps - maintains CPU voltage within ±15mV window. |
Use Scenario: Fanless convertible tablets using Intel Core m-series processors with strict thermal envelope limits. IC Role / Device Role / Timing Role: Dual-phase VR controller with remote sensing and PSYS monitoring for platform-wide power budgeting. Use Value: Achieves PS4 state current <100μA - satisfies Intel's deep-sleep requirement for >10-hour standby battery life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-phase VR controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL95869IRZ | Same R3™ architecture, identical pinout and SVID interface, but supports 3-phase only (no 1-/2-phase config); includes additional PSYS analog monitor path. | Targeted for higher-TDP desktop/server VRMs where full 3-phase operation is mandatory and PSYS analog reporting is required. | Select ISL95869IRZ when PSYS analog monitoring is needed and phase flexibility is not required. |
| RTQ2136B-QA | 3-phase controller with integrated drivers, but uses PWM (not SVID) interface; lacks DCR temperature compensation and PSYS support. | Suitable for non-Intel platforms (e.g., AMD or custom SoC) where SVID compliance is unnecessary and cost-sensitive BOMs are prioritized. | Choose RTQ2136B-QA for non-IMVP9 designs where SVID, PSYS, or NTC-based DCR compensation are not required. |
Compared with ISL95829AIRTZ, ISL95869IRZ offers tighter PSYS analog fidelity but sacrifices phase configurability, while RTQ2136B-QA trades SVID compatibility and IMVP9-specific features for lower cost and simpler interface - making ISL95829AIRTZ the optimal choice for flexible, standards-compliant IMVP9 notebook and ultrabook VRMs.
Availability
ISL95829AIRTZ is available at Aetrix Electronics and suitable for IMVP9 notebook power delivery, ultrabook VRM design, and tablet processor rail applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for ISL95829AIRTZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics Corporation is a global semiconductor leader delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications.
The ISL95829AIRTZ belongs to Renesas' IMVP9-compliant VR controller product line, engineered specifically for high-efficiency, low-noise, and dynamically adaptive CPU power delivery in mobile and compact computing platforms.
FAQ
What is the primary function of the ISL95829AIRTZ in an Intel platform?
The ISL95829AIRTZ serves as the main voltage regulator controller for Intel IMVP9-compliant CPUs, managing power delivery across 1-, 2-, or 3-phase configurations. It interprets SVID commands from the CPU, regulates output voltage with ±0.5% accuracy, and drives external MOSFETs via integrated gate drivers. Its R3™ modulator and Diode Emulation mode ensure fast transient response and high light-load efficiency - all critical for modern notebook and ultrabook power architectures.
Does the ISL95829AIRTZ support remote voltage sensing?
Yes, the ISL95829AIRTZ supports differential remote voltage sensing via dedicated VOUT_SENSE+ and VOUT_SENSE− pins. This enables Kelvin-style measurement at the CPU socket, compensating for PCB trace resistance and ensuring accurate regulation at the point of load. The feature is essential for maintaining tight voltage tolerance under high-current, high-dI/dt conditions typical in IMVP9 systems.
What current sensing methods does the ISL95829AIRTZ support?
The ISL95829AIRTZ supports two validated current sensing methods: lossless inductor DCR sensing (with optional NTC thermistor compensation via NTC_IN) and precision resistor sensing. Both are programmable and provide accurate real-time current feedback for overcurrent protection, phase shedding, and thermal management - without requiring external op-amps or complex signal conditioning.
Is the ISL95829AIRTZ compatible with Intel PS4 low-power state requirements?
Yes, the ISL95829AIRTZ is explicitly designed to meet Intel PS4 specification requirements. It achieves ultra-low quiescent current in PS4 state, enabling platform-level deep-sleep functionality. This capability is confirmed in Renesas documentation and is essential for extending battery life in ultrabooks and tablets during standby or connected standby modes.
What package type and footprint does the ISL95829AIRTZ use?
The ISL95829AIRTZ uses a 32-pin, 4 mm × 4 mm, 0.5 mm pitch TQFN package with exposed thermal pad (Renesas package code: RTZ). This RoHS-compliant package supports high-density layout, efficient thermal dissipation, and automated assembly. Pinout is fully documented in the ISL95869/ISL95829 family datasheet and matches industry-standard routing practices for multi-phase VRMs.
ISL95829AIRTZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Tray
- Product Status:
- Active
- Applications:
- -
- Voltage - Input:
- -
- Number of Outputs:
- -
- Voltage - Output:
- -
- Operating Temperature:
- -
- Grade:
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- Qualification:
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- Mounting Type:
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- Supplier Device Package:
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ISL95829AIRTZ FAQ
1.How can I place an order for ISL95829AIRTZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL95829AIRTZ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ISL95829AIRTZ reliable?
The price and inventory of ISL95829AIRTZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL95829AIRTZ is usually 5 days.
3.What payment methods are accepted for ISL95829AIRTZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL95829AIRTZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL95829AIRTZ?
ISL95829AIRTZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL95829AIRTZ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ISL95829AIRTZ?
For technical support, including ISL95829AIRTZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL95829AIRTZ requirements.
6.How does Aetrix verify that ISL95829AIRTZ is sourced from the original manufacturer or authorized distributors?
All ISL95829AIRTZ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ISL95829AIRTZ meets industry standards.
7.What is the process for return or replacement of ISL95829AIRTZ?
All ISL95829AIRTZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL95829AIRTZ, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ISL95829AIRTZ part is unused and in its original packaging.
Return procedure for ISL95829AIRTZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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