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Renesas ISL62882BHRTZ
- Part No.:
- ISL62882BHRTZ
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
ISL62882BHRTZ.pdf
- Description:
- IC REG CTRL IMVP-6.5 1OUT 48TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,974
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Product details
Overview
ISL62882BHRTZ from Renesas (formerly Intersil) is a dual-phase PWM buck regulator IC designed for IMVP-6.5™-compliant CPU and GPU core voltage regulation in notebook platforms. It delivers 0.5% system accuracy over temperature, supports 7-bit VID input (0.3V–1.5V), integrates two gate drivers, and operates across –10°C to +100°C ambient with junction up to +125°C.
For engineers reviewing the ISL62882BHRTZ datasheet, ISL62882BHRTZ pinout, ISL62882BHRTZ application, or ISL62882BHRTZ equivalent, key selection criteria include its R3™ modulator architecture for fast transient response, split LGATE1 driver for light-load efficiency, adaptive body diode conduction time reduction, differential remote sensing, and support for both DCR and resistor-based current sensing.
Technical Context
The ISL62882BHRTZ implements Intel's IMVP-6.5™ protocol with programmable 1- or 2-phase CPU mode or fixed 1-phase GPU mode. Its Robust Ripple Regulator (R3™) modulator dynamically adjusts switching frequency during load transients-increasing frequency under step-up loads and reducing it at light load-enabling superior transient response and high efficiency across full load range.
It features dual current-sense inputs (ISEN1/ISEN2), differential remote sensing (VSEN/RTN), PSI# and DPRSLPVR interface support for phase add/drop and diode emulation mode control, and FB2 compensation optimization for 1-phase operation. The controller reports output current via IMON and monitors thermal status via NTC and VR_TT#.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Regulation Accuracy | ±0.5% over temperature (0.75V–1.5V range); ensures stable core voltage under thermal stress in mobile CPUs/GPUs. |
| VID Input Range | 7-bit (VID0–VID6), 0.3V–1.500V in 12.5mV steps; enables precise microprocessor voltage identification per IMVP-6.5™. |
| Switching Frequency | 200–500 kHz adjustable (300 kHz typical); balances EMI, efficiency, and component size in compact notebook designs. |
| Current Sensing | Supports lossless inductor DCR or precision shunt resistor; allows thermally compensated sensing using single NTC on RBIAS. |
| Gate Drive Capability | UGATE/LGATE drivers deliver ≥2 A sink/source; supports discrete high-side/low-side MOSFETs in multiphase buck topologies. |
| Thermal Monitoring | NTC input with 53–67 µA bias current and 1.18–1.22 V overtemperature threshold; enables accurate die-adjacent thermal protection. |
| Output Current Reporting | IMON pin outputs 108–132 µA per 20 µA ISUM− current; provides analog real-time load monitoring for system power management. |
Pinout & Package
ISL62882BHRTZ uses a Pb-free 48-lead 6 mm × 6 mm TQFN package (PKG DWG # L48.6x6) with exposed GND pad on bottom. Thermal resistance θJA = 29°C/W, θJC = 2°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VID0–VID6 | Microprocessor voltage ID input | 7-bit digital code sets target VCORE; supports dynamic VID changes during operation. |
| ISEN1 / ISEN2 | Phase 1 / Phase 2 current sense inputs | Differential inputs for DCR or resistor sensing; enable per-phase current balancing and OCP. |
| VSEN / RTN | Differential remote voltage sense pair | Connects directly to CPU/GPU die pads for accurate closed-loop regulation at point-of-load. |
| LGATE1a / LGATE1b | Split low-side gate drivers for Phase 1 | LGATE1a always active; LGATE1b disabled in deeper sleep (DPRSLPVR high) to reduce light-load losses. |
| IMON | Analog current monitor output | Current-source output proportional to total output current; used for system-level power telemetry. |
| PSI# / DPRSLPVR | Low-power state signaling inputs | Control phase shedding, OCP threshold adjustment, and diode emulation entry/exit per IMVP-6.5™. |
| FB / FB2 | Main and 1-phase compensation inputs | FB2 connects internally in 1-phase mode only; allows optimized loop compensation for single-phase operation. |
| UGATE1 / UGATE2 | High-side MOSFET gate drivers | Drive external N-channel high-side FETs; integrated boot diodes support self-biasing via BOOT1/BOOT2. |
Key Features
| Feature | Design Value |
|---|---|
| R3™ Modulator Architecture | Variable-frequency control achieves faster transient response than fixed-PWM and lower jitter than hysteretic regulators. |
| Split LGATE1 Driver | Enables selective deactivation of one low-side FET in light load, reducing conduction loss without sacrificing regulation stability. |
| Adaptive Body Diode Conduction Time Reduction | Minimizes reverse-conduction loss in diode emulation mode by precisely timing LGATE turn-off at zero-crossing. |
| User-selectable Overshoot Reduction | Reduces required output capacitance by aggressively damping voltage overshoot during load steps-configurable via RBIAS. |
| Differential Remote Sensing | Compensates for PCB IR drop between regulator and processor die, ensuring ±0.5% accuracy at the actual load point. |
Applications
| Notebook CPU Core Voltage Regulation | Notebook GPU Core Voltage Regulation |
|---|---|
Use Scenario: Powering Intel Core i-series or AMD Ryzen mobile processors requiring dynamic voltage scaling per IMVP-6.5™. IC Role / Device Role / Timing Role: Primary multiphase VR controller managing 1–2 phases, VID decoding, current reporting, and thermal coordination. Use Value: Enables rapid load-step response (<10 µs), tight voltage accuracy (±0.5%), and seamless transition between active/sleep states via PSI#/DPRSLPVR. | Use Scenario: Supplying NVIDIA GeForce or AMD Radeon mobile GPUs with tightly regulated VCORE under burst workloads. IC Role / Device Role / Timing Role: Configured in 1-phase mode with FB2-optimized compensation for stable GPU rail regulation and clock enable sequencing. Use Value: Delivers high efficiency at light-to-moderate loads while maintaining <1% droop during GPU shader cluster activation. |
| Mobile Platform IMVP-6.5™ Compliance | Thermally-Constrained Notebook Designs |
Use Scenario: Meeting Intel's IMVP-6.5™ specification for mobile voltage regulator modules (VRMs) in ultrabooks and 2-in-1 devices. IC Role / Device Role / Timing Role: Full-protocol implementation including VR_ON enable, CLK_EN# synchronization, PGOOD assertion, and VR_TT# thermal alert. Use Value: Guarantees interoperability with Intel chipset power management logic and eliminates need for external protocol translators. | Use Scenario: Managing thermal envelope in fanless or passive-cooled notebooks where VR efficiency directly impacts skin temperature. IC Role / Device Role / Timing Role: Uses R3™ variable frequency and diode emulation to minimize switching and conduction losses at sub-5W loads. Use Value: Extends battery life and reduces thermal throttling by maintaining >85% efficiency down to 100 mA output current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multiphase CPU/GPU core voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL62882HRTZ | Same functionality and electrical specs, but in 40-lead 5×5 mm TQFN (L40.5x5); θJA = 32°C/W vs. 29°C/W for BHRTZ. | Lower thermal performance margin; suitable for less thermally constrained or lower-power CPU designs. | Select ISL62882HRTZ when board space is tighter and thermal headroom exceeds 5°C above ambient. |
| RTQ2136B-QT | Single-chip 3-phase IMVP-8.0 controller with integrated MOSFET drivers; supports higher current (up to 120 A), wider VIN (4.5–24 V), and enhanced telemetry. | Targets newer Intel 11th+ Gen CPUs; not IMVP-6.5™-compliant; requires different layout and firmware integration. | Choose RTQ2136B-QT only for new designs targeting IMVP-8.0 compliance and higher power density. |
Compared with ISL62882HRTZ, the ISL62882BHRTZ offers better thermal dissipation (29°C/W vs. 32°C/W) in a larger 48-lead package-critical for sustained 2-phase operation in thin-and-light notebooks-while RTQ2136B-QT provides next-generation protocol support but lacks backward compatibility with IMVP-6.5™ systems.
Availability
ISL62882BHRTZ is available at Aetrix Electronics and suitable for notebook CPU voltage regulation, notebook GPU voltage regulation, and IMVP-6.5™-compliant mobile platform power delivery requiring stable component supply and long-term design continuity.
Supply support for ISL62882BHRTZ 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 acquired Intersil in 2017 and maintains full technical and manufacturing continuity for legacy Intersil power management products.
The ISL62882 product line was developed specifically for Intel mobile processor core voltage regulation, delivering high-efficiency, high-accuracy, and protocol-compliant multiphase buck control for notebook and ultrabook platforms.
FAQ
What is the operating temperature range for the ISL62882BHRTZ?
The ISL62882BHRTZ is rated for an ambient operating temperature range of –10°C to +100°C, with a maximum junction temperature of +125°C. This rating is confirmed in the FN6890 datasheet ordering table and aligns with its intended use in thermally demanding notebook CPU/GPU VR applications where localized heating occurs near the processor die.
How does the ISL62882BHRTZ differ from the ISL62882HRTZ?
The ISL62882BHRTZ and ISL62882HRTZ share identical electrical functionality and IMVP-6.5™ compliance, but differ in package: ISL62882BHRTZ uses a 48-lead 6×6 mm TQFN (L48.6x6) with θJA = 29°C/W, while ISL62882HRTZ uses a 40-lead 5×5 mm TQFN (L40.5x5) with θJA = 32°C/W. The BHRTZ variant provides superior thermal performance for sustained 2-phase operation.
Does the ISL62882BHRTZ support both DCR and resistor-based current sensing?
Yes, the ISL62882BHRTZ supports both lossless inductor DCR sensing and precision shunt resistor sensing via dedicated ISEN1 and ISEN2 inputs. DCR sensing can be thermally compensated using a single NTC thermistor connected to the RBIAS pin, enabling accurate current measurement across temperature without additional components.
What is the purpose of the FB2 pin on the ISL62882BHRTZ?
The FB2 pin on the ISL62882BHRTZ is an auxiliary feedback input used exclusively in 1-phase mode to optimize compensation network performance. An internal switch connects FB2 to FB only when configured for 1-phase operation, allowing independent tuning of loop stability and transient response without affecting 2-phase behavior.
Can the ISL62882BHRTZ be used in GPU voltage regulation applications?
Yes, the ISL62882BHRTZ is explicitly qualified for GPU core voltage regulation per its datasheet Applications section. It supports 1-phase GPU mode with optimized start-up timing (5 mV/µs slew rate), FB2 compensation, and full IMVP-6.5™ signaling-including VR_ON, CLK_EN#, and PGOOD-to coordinate with GPU power management logic.
ISL62882BHRTZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 48-WFQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Obsolete
- Applications:
- Controller, Intel IMVP-6.5™
- Voltage - Input:
- 5V ~ 25V
- Number of Outputs:
- 1
- Voltage - Output:
- 0.013V ~ 1.5V
- Operating Temperature:
- -10°C ~ 100°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TQFN (6x6)
ISL62882BHRTZ FAQ
1.How can I place an order for ISL62882BHRTZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL62882BHRTZ 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 ISL62882BHRTZ reliable?
The price and inventory of ISL62882BHRTZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL62882BHRTZ is usually 5 days.
3.What payment methods are accepted for ISL62882BHRTZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL62882BHRTZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL62882BHRTZ?
ISL62882BHRTZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL62882BHRTZ 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 ISL62882BHRTZ?
For technical support, including ISL62882BHRTZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL62882BHRTZ requirements.
6.How does Aetrix verify that ISL62882BHRTZ is sourced from the original manufacturer or authorized distributors?
All ISL62882BHRTZ 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 ISL62882BHRTZ meets industry standards.
7.What is the process for return or replacement of ISL62882BHRTZ?
All ISL62882BHRTZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL62882BHRTZ, 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 ISL62882BHRTZ part is unused and in its original packaging.
Return procedure for ISL62882BHRTZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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