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Renesas ISL95822IRZ
- Part No.:
- ISL95822IRZ
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
ISL95822IRZ.pdf
- Description:
- IC REG CTRLR INTEL 1OUT 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,327
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Product details
Overview
ISL95822IRZ from Renesas Electronics (formerly Intersil) is a dual-phase PWM voltage regulator IC designed for Intel VR12.5™ and VR12.6™ CPU core power delivery, featuring integrated gate drivers, SVID serial interface, 0.5% system voltage accuracy over temperature, DCR/resistor current sensing, and remote differential voltage sensing.
For engineers reviewing the ISL95822IRZ datasheet, ISL95822IRZ pinout, ISL95822IRZ application, or ISL95822IRZ equivalent, key selection considerations include VR12.5/VR12.6 compliance, dual-phase vs. single-phase configuration flexibility, programmable ICCMAX and slew rate, R3 Technology™ transient response, and VBOOT voltage control during startup.
Technical Context
The ISL95822IRZ implements Intersil's Robust Ripple Regulator R3 Technology™, enabling variable switching frequency during load transients and improved light-load efficiency via automatic frequency scaling. Its SVID interface supports dynamic voltage identification and telemetry reporting to Intel-compatible CPUs.
It supports two-phase operation with interleaved timing or reconfigurable single-phase mode using internal gate drivers. Current sensing is configurable for lossless DCR-based measurement with single NTC thermistor compensation or precision shunt resistor sensing, both with remote differential sense inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 25V - supports wide-input notebook/desktop adapter rails including 5V, 8.5V, 12V, and 19V supplies. |
| Output Voltage Range | 0.3V to 1.8V - programmable via SVID to meet Intel VR12.5/VR12.6 core voltage requirements. |
| System Voltage Accuracy | ±0.5% over temperature - ensures tight regulation across CPU operating conditions without external calibration. |
| Current Sensing | DCR or resistor-based - enables lossless inductor sensing with NTC compensation or high-accuracy shunt measurement. |
| Switching Frequency | Programmable 200–1000kHz - adjustable to optimize efficiency, EMI, and component size per design constraints. |
| Protection Features | OCP, Power-Good output, diode braking - provides robust fault handling and system-level power sequencing feedback. |
Pinout & Package
ISL95822IRZ is housed in a 48-pin QFN package (7mm × 7mm, 0.5mm pitch) with exposed thermal pad. Pin assignment is validated per Intersil FN8595 Rev 0.00 datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Main input supply rail | Accepts 4.5–25V input; powers internal circuitry and gate drivers. |
| VOUT_SENS+/− | Differential remote sense inputs | Enables accurate load-point voltage regulation by compensating for PCB IR drop. |
| SVID_DATA / SVID_CLK | SVID serial bus interface | Two-wire bidirectional communication with CPU for VID code updates and telemetry. |
| PHASE1 / PHASE2 | Gate driver outputs | Drive high-side and low-side MOSFETs in each phase; support 1- or 2-phase configuration. |
| PGOOD | Power-Good status signal | Open-drain output indicating regulated output is within ±10% of target voltage. |
Key Features
| Feature | Design Value |
|---|---|
| R3 Technology™ PWM modulation | Reduces transient settling time and improves light-load efficiency via adaptive frequency scaling. |
| Configurable 1-/2-phase operation | Single IC supports scalable power delivery: 2-phase for high-current CPUs or 1-phase for lower-power designs. |
| Programmable ICCMAX limit | Resistor-set current limit prevents overcurrent damage while supporting dynamic CPU burst loads. |
| Adjustable voltage slew rate | Controls dV/dt during VID transitions to prevent overshoot/undershoot during CPU state changes. |
| VBOOT programmability | Configures bootstrap capacitor charging voltage at startup to ensure reliable high-side FET turn-on. |
Applications
| Notebook CPU Core Power | Desktop CPU Core Power |
|---|---|
Use Scenario: High-performance ultrabook with Intel Core i7 processor requiring fast transient response and thermal-aware voltage scaling. IC Role / Device Role / Timing Role: Primary VR controller managing dual-phase buck conversion, SVID negotiation, and DCR-based current monitoring. Use Value: Enables VR12.6-compliant voltage positioning with ±0.5% accuracy and adaptive frequency to extend battery life during light loads. | Use Scenario: ATX motherboard delivering up to 60A core current to desktop CPU under multi-threaded workloads. IC Role / Device Role / Timing Role: Dual-phase PWM regulator coordinating gate drive timing, remote sensing, and OCP protection for stable 12V input-to-sub-1V conversion. Use Value: Supports programmable ICCMAX and slew rate to safely handle CPU turbo boost events without rail collapse. |
| VR12.5 Server Node Power | Embedded x86 Platform Power |
Use Scenario: 1U rack server node with dual-core Xeon processor operating in thermally constrained environment. IC Role / Device Role / Timing Role: Voltage regulator implementing load-line droop and remote sensing to maintain stability across wide temperature and current ranges. Use Value: Delivers enhanced load line accuracy and NTC-compensated DCR sensing to sustain regulation accuracy from −40°C to +105°C. | Use Scenario: Fanless industrial PC with embedded Intel Atom processor requiring silent, compact, and reliable core power. IC Role / Device Role / Timing Role: Single-phase configured ISL95822IRZ providing SVID-controlled voltage scaling and Power-Good signaling to system management controller. Use Value: Eliminates need for separate PMIC while maintaining VR12.5 compliance and enabling firmware-driven voltage optimization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPU voltage regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL95823IRZ | Same R3 architecture and pinout; adds integrated MOSFET drivers with higher current capability (1.5A vs. 1.0A). | Targeted at higher-current VR12.6 platforms requiring >60A output; not required for standard notebook/desktop VR12.5 designs. | Select ISL95823IRZ only when gate drive current headroom or extended phase count scalability is needed. |
| RT8803AGQW | Single-phase VR12.5 controller with SVID; lacks dual-phase capability and R3 Technology™ adaptive frequency. | Suitable for low-power x86 SoCs (<25A); cannot replace ISL95822IRZ in dual-phase or high-transient-response applications. | Choose RT8803AGQW for cost-sensitive, space-constrained embedded designs where dual-phase operation is unnecessary. |
Compared with ISL95822IRZ, ISL95823IRZ offers higher gate drive strength for demanding multi-phase layouts, while RT8803AGQW provides a simpler, lower-cost alternative for single-phase VR12.5 implementations-neither is pin-compatible, but both serve adjacent segments of Intel CPU power architecture.
Availability
ISL95822IRZ is available at Aetrix Electronics and suitable for notebook computers, desktop motherboards, and embedded x86 platforms requiring stable component supply and VR12.5/VR12.6 compliance.
Supply support for ISL95822IRZ 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 formed through the merger of NEC Electronics, Renesas Technology, and Intersil, specializing in microcontrollers, analog, power management, and timing solutions.
The ISL95822IRZ belongs to Renesas' high-performance CPU voltage regulator product line, engineered specifically for Intel VR12.5 and VR12.6 microprocessor core power delivery with emphasis on transient response, accuracy, and configurability.
FAQ
What CPU specifications does the ISL95822IRZ support?
The ISL95822IRZ is fully compliant with Intel VR12.5™ and VR12.6™ specifications, supporting SVID-based voltage identification, telemetry reporting, load-line droop, and dynamic voltage scaling required by compatible Intel Core and Xeon processors. It meets all timing, accuracy, and protection requirements defined in those specifications.
Does the ISL95822IRZ support both single-phase and dual-phase configurations?
Yes, the ISL95822IRZ supports both configurations using its two integrated gate drivers. In dual-phase mode, it delivers interleaved operation for higher current and lower ripple; in single-phase mode, one driver is disabled, allowing use in lower-power systems. Configuration is determined by external resistor settings and SVID commands.
How does R3 Technology™ improve performance in the ISL95822IRZ?
R3 Technology™ in the ISL95822IRZ enables faster transient settling time, variable switching frequency during load steps, and improved light-load efficiency. Unlike fixed-frequency PWM modulators, it dynamically adjusts frequency to maintain regulation while minimizing quiescent current and output capacitor stress during low-power states.
What current sensing methods does the ISL95822IRZ support?
The ISL95822IRZ supports two current sensing methods: lossless DCR sensing using the inductor's DC resistance with single NTC thermistor compensation, and precision resistor (shunt) sensing. Both methods feed into the same control loop and support remote differential voltage sensing for accurate load-line implementation.
Is remote voltage sensing supported on the ISL95822IRZ?
Yes, the ISL95822IRZ includes dedicated VOUT_SENS+ and VOUT_SENS− pins for differential remote voltage sensing. This allows the IC to regulate voltage directly at the CPU power pads, compensating for PCB trace resistance and ensuring ±0.5% system accuracy regardless of board layout or current level.
ISL95822IRZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- Robust Ripple Regulator™ (R3)
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Obsolete
- Applications:
- Controller, Intel VR12.5, VR12.6
- Voltage - Input:
- 4.5V ~ 28V
- Number of Outputs:
- 1
- Voltage - Output:
- 0.5V ~ 2.3V
- Operating Temperature:
- -40°C ~ 100°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-QFN (4x4)
ISL95822IRZ FAQ
1.How can I place an order for ISL95822IRZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL95822IRZ 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 ISL95822IRZ reliable?
The price and inventory of ISL95822IRZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL95822IRZ is usually 5 days.
3.What payment methods are accepted for ISL95822IRZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL95822IRZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL95822IRZ?
ISL95822IRZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL95822IRZ 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 ISL95822IRZ?
For technical support, including ISL95822IRZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL95822IRZ requirements.
6.How does Aetrix verify that ISL95822IRZ is sourced from the original manufacturer or authorized distributors?
All ISL95822IRZ 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 ISL95822IRZ meets industry standards.
7.What is the process for return or replacement of ISL95822IRZ?
All ISL95822IRZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL95822IRZ, 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 ISL95822IRZ part is unused and in its original packaging.
Return procedure for ISL95822IRZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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