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Renesas ISL95829CIRTZ
- Part No.:
- ISL95829CIRTZ
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- -
- Datasheet:
-
ISL95829CIRTZ.pdf
- Description:
- MULTI-PHASE 3+2+1 CORE CONTROLLE
- Quantity:
- Payment:
- Shipping:
Inventory:4,405
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Product details
Overview
ISL95829CIRTZ 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 ISL95829CIRTZ datasheet, ISL95829CIRTZ pinout, ISL95829CIRTZ application, or ISL95829CIRTZ equivalent, key selection considerations include SVID interface compliance, DCR/resistor current sensing flexibility, programmable ICCMAX and slew rate, PSYS monitoring capability, and RoHS-compliant 4×4 TQFN-40 package integration.
Technical Context
The ISL95829CIRTZ implements Renesas' Robust Ripple Regulator (R3™) topology, enabling variable switching frequency (up to 750 kHz) that dynamically adjusts during load transients. It uses SVID serial bus for bidirectional communication with Intel CPUs and supports both lossless DCR sensing and precision resistor-based current measurement.
It integrates two high-side/low-side gate drivers per phase (total six driver outputs), supports remote differential voltage sensing, and provides VR_READY power-good signaling. The controller meets Intel PS4 low-power state requirements and enables acoustic noise reduction via programmable decay slew rate limiting.
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 TDP |
| System Accuracy | ±0.5% over temperature - ensures tight voltage regulation across operating range |
| Switching Frequency | Up to 750 kHz - balances efficiency, component size, and EMI performance |
| Current Sensing | DCR or precision resistor - eliminates sense resistor losses or enables highest accuracy |
| Thermal Compensation | Single NTC thermistor support - maintains DCR sensing accuracy across junction temperature |
| PSYS Monitoring | Alternate VSYS mode - enables real-time system input power tracking per IMVP9 spec |
Pinout & Package
ISL95829CIRTZ is housed in a RoHS-compliant 4 mm × 4 mm, 40-pin TQFN package with exposed thermal pad (EP). Pin assignment follows Renesas standard layout for IMVP9 controllers, supporting dual-side PCB routing and thermal dissipation via EP soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Main input supply rail | Accepts 4.5V–25V input; powers internal regulators and gate drivers |
| VOUT_SENSE+ | Remote voltage sense positive | Differential input for accurate load-point regulation, rejecting PCB IR drop |
| VOUT_SENSE− | Remote voltage sense negative | Completes differential sense pair; improves noise immunity and accuracy |
| SVID_DATA / SVID_CLK | SVID serial interface | Two-wire bus for dynamic voltage/frequency commands and telemetry from CPU |
| VR_READY | Power-good output | Open-drain signal indicating stable VOUT within regulation window |
| PSYS_MON | System input power monitor | Analog output proportional to input power (VSYS mode), used for IMVP9 PSYS reporting |
Key Features
| Feature | Design Value |
|---|---|
| R3™ Modulator Architecture | Enables sub-10 µs transient recovery and adaptive frequency scaling without external compensation |
| Diode Emulation Mode | Reduces switching frequency under light load to improve efficiency while maintaining regulation |
| Acoustic Noise Reduction (ANR) | Programmable decay slew rate limiter suppresses audible coil whine during transient events |
| Programmable ICCMAX | Resistor-set current limit threshold enables precise OCP tuning for different MOSFET selections |
| VBOOT Programmability | Adjustable bootstrap voltage ensures optimal high-side FET gate drive across input voltage range |
Applications
| Ultrabook Main CPU Rail | Desktop IMVP9 Platform |
|---|---|
Use Scenario: Power delivery to Intel Core i7/i9 processors in thin-and-light notebooks with strict thermal and acoustic constraints. IC Role / Device Role / Timing Role: Primary 3-phase VR controller managing VCCIN rail with SVID command decoding and telemetry feedback. Use Value: R3™ modulation and ANR reduce thermal stress and audible noise during burst workloads like video encoding. |
Use Scenario: High-current CPU power solution in ATX desktop motherboards requiring robust transient response and PSYS reporting. IC Role / Device Role / Timing Role: Configurable 3-phase controller interfacing with CPU via SVID, supporting up to 120 A output with DCR sensing. Use Value: Programmable slew rate and ICCMAX allow fine-tuning for discrete MOSFET layouts and multi-phase interleaving stability. |
| IMVP9 Tablet SoC Supply | Embedded IMVP9-Compatible System |
Use Scenario: Compact power solution for fanless tablet platforms where board area and light-load efficiency are critical. IC Role / Device Role / Timing Role: 2-phase VR controller using integrated drivers and DCR sensing to minimize external components. Use Value: Diode Emulation mode extends battery life by reducing quiescent current and switching losses below 5 A load. |
Use Scenario: Industrial embedded computing module requiring long-lifecycle, IMVP9-compliant CPU power with PS4 state support. IC Role / Device Role / Timing Role: Controller implementing full IMVP9 protocol stack including VR_HOT, VR_READY, and PSYS monitoring. Use Value: Compliance with Intel PS4 low-power specification enables seamless sleep/wake transitions without rail collapse. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-phase IMVP9 VR controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL95869IRZ | Same die, 48-pin WQFN package; larger footprint and different thermal pad layout | Preferred for higher-power desktop designs needing enhanced thermal margin | Select ISL95869IRZ when board space allows larger package and higher thermal dissipation is required |
| RTQ2132B-QA | Monolithic 3-phase controller with integrated power stages; no external MOSFET drivers needed | Targeted at space-constrained designs where BOM count reduction outweighs discrete FET flexibility | Choose RTQ2132B-QA only if integrated power stages meet current/voltage specs and thermal limits |
Compared with ISL95829CIRTZ, ISL95869IRZ offers identical functionality in a larger WQFN package better suited for high-current thermal management, while RTQ2132B-QA trades external FET control for integration-reducing component count but limiting layout optimization and thermal design flexibility.
Availability
ISL95829CIRTZ is available at Aetrix Electronics and suitable for Ultrabook CPU power, IMVP9 desktop VRMs, and compact tablet SoC supply applications requiring stable component supply, long-term lifecycle support, and IMVP9 specification compliance.
Supply support for ISL95829CIRTZ 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 is a global semiconductor leader delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, infrastructure, and PC applications.
The ISL95829CIRTZ belongs to Renesas' IMVP9-compliant VR controller product line, engineered specifically for high-efficiency, low-noise, and thermally optimized CPU core power delivery in mobile and desktop computing platforms.
FAQ
What is the primary function of the ISL95829CIRTZ in an Intel IMVP9 platform?
The ISL95829CIRTZ serves as the main 3-phase voltage regulator controller for the CPU's VCCIN rail in Intel IMVP9-compliant systems. It interprets SVID commands from the processor, regulates output voltage with ±0.5% accuracy, manages gate drive for external MOSFETs, and reports telemetry including PSYS. Its R3™ modulator architecture ensures fast transient response essential for modern CPU burst loads.
Does the ISL95829CIRTZ support both DCR and resistor-based current sensing?
Yes, the ISL95829CIRTZ supports dual current sensing methods: lossless inductor DCR sensing with single NTC thermistor compensation for temperature drift correction, and precision shunt resistor sensing for highest accuracy. Both modes are selectable via configuration pins or SVID commands, allowing designers to optimize for cost, accuracy, or board space depending on the application.
What package type and pin count does the ISL95829CIRTZ use?
The ISL95829CIRTZ uses a 4 mm × 4 mm, 40-pin TQFN package with an exposed thermal pad (EP). This RoHS-compliant package enables high-density layout and efficient thermal transfer to the PCB. Pinout is optimized for symmetric routing of gate drive signals and differential voltage sense lines, and matches Renesas' standard IMVP9 controller footprint for layout reuse.
How does the ISL95829CIRTZ implement Acoustic Noise Reduction (ANR)?
The ISL95829CIRTZ implements Acoustic Noise Reduction (ANR) through an advanced decay slew rate limiter that controls the turn-off timing of high-side MOSFETs. By programmably limiting the body diode conduction time and adjusting the decay slope, it suppresses audible coil whine during load transients-critical for fanless Ultrabook and tablet platforms where acoustic performance is tightly specified.
Is the ISL95829CIRTZ compatible with Intel PS4 low-power state requirements?
Yes, the ISL95829CIRTZ meets Intel PS4 low-power state specifications, including ultra-low quiescent current and controlled rail ramp-down/ramp-up behavior during sleep/wake transitions. Its internal bias circuitry and Diode Emulation mode ensure stable operation and fast wake-up response while minimizing power loss in idle states-enabling full compliance with IMVP9 platform power budgets.
ISL95829CIRTZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Tray
- Product Status:
- Obsolete
- Applications:
- -
- Voltage - Input:
- -
- Number of Outputs:
- -
- Voltage - Output:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
ISL95829CIRTZ FAQ
1.How can I place an order for ISL95829CIRTZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL95829CIRTZ 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 ISL95829CIRTZ reliable?
The price and inventory of ISL95829CIRTZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL95829CIRTZ is usually 5 days.
3.What payment methods are accepted for ISL95829CIRTZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL95829CIRTZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL95829CIRTZ?
ISL95829CIRTZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL95829CIRTZ 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 ISL95829CIRTZ?
For technical support, including ISL95829CIRTZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL95829CIRTZ requirements.
6.How does Aetrix verify that ISL95829CIRTZ is sourced from the original manufacturer or authorized distributors?
All ISL95829CIRTZ 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 ISL95829CIRTZ meets industry standards.
7.What is the process for return or replacement of ISL95829CIRTZ?
All ISL95829CIRTZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL95829CIRTZ, 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 ISL95829CIRTZ part is unused and in its original packaging.
Return procedure for ISL95829CIRTZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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