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Renesas ISL62882BHRTZ-T
- Part No.:
- ISL62882BHRTZ-T
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
ISL62882BHRTZ-T.pdf
- Description:
- IC REG CTRL IMVP-6.5 1OUT 48TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,065
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Product details
Overview
ISL62882BHRTZ-T 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 in 12.5mV steps), integrates two gate drivers, and implements Robust Ripple Regulator (R3™) technology for fast transient response. It operates across -10°C to +100°C ambient and enables phase shedding via PSI# and DPRSLPVR signals.
For engineers reviewing the ISL62882BHRTZ-T datasheet, ISL62882BHRTZ-T pinout, ISL62882BHRTZ-T application, or ISL62882BHRTZ-T equivalent, key selection considerations include IMVP-6.5™ compliance, dual-phase DCR/resistor current sensing, differential remote sensing capability, adaptive body diode conduction time reduction, and user-selectable overshoot reduction for capacitor optimization.
Technical Context
The ISL62882BHRTZ-T implements a multiphase R3™ modulator architecture that combines fixed-frequency PWM stability with hysteretic-like transient responsiveness: switching frequency dynamically increases during load transients and decreases at light load to maximize efficiency. It uses interleaved 2-phase operation with precise current balancing via ISUM+/- inputs and supports both CPU (1-/2-phase) and GPU (1-phase) configurations.
It features split LGATE1a/LGATE1b outputs for optimized light-load efficiency in deeper sleep modes, differential VSEN/RTN remote sensing for die-level voltage regulation, and thermally compensated NTC-based thermal monitoring via VR_TT#. Current sensing is configurable using either lossless inductor DCR or precision shunt resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Regulation Accuracy | ±0.5% over temperature (0.75V–1.5V range); ensures stable microprocessor core voltage under thermal stress. |
| VID Input Range | 7-bit interface (VID0–VID6), 0.300V–1.500V in 12.5mV steps; enables dynamic voltage scaling per IMVP-6.5™ protocol. |
| Switching Frequency | 200–500 kHz adjustable (typ. 300 kHz); balances efficiency, size, and EMI in mobile power delivery. |
| Current Sensing | Supports both DCR and discrete resistor methods with thermal compensation via single NTC; eliminates need for high-precision sense resistors. |
| Phase Control | Programmable 1- or 2-phase CPU mode; automatic phase add/drop via PSI# and DPRSLPVR signals for dynamic power-state adaptation. |
| Gate Drive Capability | UGATE sink/source: 2.0 A; LGATE1a/b sink/source: 1.0–2.0 A; drives standard logic-level MOSFETs without external buffers. |
| Thermal Protection | NTC-based VR_TT# output with 1.18–1.22 V trip threshold; provides accurate die-adjacent thermal monitoring for system throttling. |
Pinout & Package
ISL62882BHRTZ-T is housed in a 48-lead 6 mm × 6 mm TQFN package (Pb-free, RoHS compliant) with exposed GND pad on bottom. The package supports high-power dissipation (θJA = 29°C/W, θJC = 2°C/W) and requires proper PCB thermal vias for reliable operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VID0–VID6 | Microprocessor voltage identification input | 7-bit digital code sets target VCORE; supports on-the-fly VID changes during runtime. |
| VSEN / RTN | Differential remote voltage sense pair | Connects directly to CPU/GPU die for accurate closed-loop regulation, rejecting PCB IR drop. |
| ISEN1 / ISEN2 | Per-phase current sense inputs | Enable lossless DCR sensing or precision resistor sensing; used for current balance and OCP programming. |
| LGATE1a / LGATE1b | Split low-side gate drive outputs | LGATE1a remains active; LGATE1b disables in deeper sleep (DPRSLPVR high) to reduce light-load losses. |
| PSI# / DPRSLPVR | Power state interface signals | Trigger phase shedding, diode emulation entry, and OCP threshold adjustment per IMVP-6.5™ sleep states. |
| IMON | Analog current monitor output | Provides current-proportional output (e.g., 120 µA at 20 µA ISUM−) for system telemetry and protection. |
| PGOOD | Open-drain power-good indicator | Signals valid regulation after 7.6 ms delay; requires external pull-up to VCCP or 3.3 V. |
| CLK_EN# | System clock enable output | Asserts low 13 switching cycles after VCORE reaches 90% of boot voltage; synchronizes PLL startup. |
Key Features
| Feature | Design Value |
|---|---|
| Robust Ripple Regulator (R3™) | Variable-frequency modulation achieves faster transient response than fixed-PWM and lower jitter than hysteretic control. |
| Adaptive Body Diode Conduction Time Reduction | Minimizes reverse-conduction loss in diode emulation mode by turning off LGATE at zero-crossing of phase node voltage. |
| User-selectable Overshoot Reduction | Reduces required output capacitance by up to 30% when enabled; configurable via RBIAS and COMP-to-GND resistor. |
| Split LGATE1 Function | Enables independent control of parallel low-side MOSFETs-LGATE1b disables in deep-sleep mode to cut gate charge loss. |
| FB2 Compensation Optimization | Switched FB2 network improves loop stability and transient performance specifically in 1-phase GPU mode. |
Applications
| Notebook CPU Core Regulation | Notebook GPU Core Regulation |
|---|---|
Use Scenario: Powering Intel Core i-series or AMD Ryzen mobile CPUs requiring IMVP-6.5™-compliant dynamic voltage/frequency scaling. IC Role / Device Role / Timing Role: Dual-phase VR controller managing up to ~60 A total load with phase shedding, remote sensing, and thermal telemetry. Use Value: Enables precise 0.5% VCORE regulation across temperature and load, reducing processor throttling and improving sustained performance. | Use Scenario: Supplying NVIDIA GeForce MX or AMD Radeon RX Vega mobile GPUs with tight voltage tolerance and rapid load-step response. IC Role / Device Role / Timing Role: Configurable 1-phase VR controller supporting GPU-specific soft-start profiles and DPRSLPVR-triggered efficiency modes. Use Value: Achieves <10 µs load-step recovery and 5 mV/µs VID slew rate, meeting GPU power-state transition timing requirements. |
| Mobile Platform IMVP-6.5™ Compliance | Thermally-Constrained Thin-and-Light Designs |
Use Scenario: Designing UL-certified ultrabooks where IMVP-6.5™ certification is mandatory for OEM qualification. IC Role / Device Role / Timing Role: Fully compliant IMVP-6.5™ controller implementing PSI#, DPRSLPVR, VR_ON, CLK_EN#, and PGOOD signaling per spec. Use Value: Eliminates need for external logic or firmware workarounds to meet Intel's platform power management protocol stack. | Use Scenario: Implementing compact VR solutions in sub-15 mm chassis with limited airflow and high ambient temperatures. IC Role / Device Role / Timing Role: High-efficiency multiphase controller with θJA = 29°C/W and adaptive diode emulation for >90% light-load efficiency. Use Value: Reduces thermal hotspot formation and extends battery life in fanless or passive-cooled notebooks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multiphase VR controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL62882HRTZ-T | Same functionality but in 40-lead 5×5 mm TQFN; higher θJA (32°C/W); -10°C to +100°C rating. | Preferred for space-constrained designs where thermal margin allows smaller footprint. | Select ISL62882HRTZ-T only if board layout cannot accommodate 6×6 mm area and thermal derating is acceptable. |
| RTQ2136B-QA | Single-chip 3-phase IMVP-8 controller; supports higher current (up to 120 A); includes integrated MOSFET drivers and telemetry ADC. | Targets next-gen platforms requiring IMVP-8 compliance and higher power density. | Choose RTQ2136B-QA for future-proofing or migration to IMVP-8; not drop-in compatible due to different pinout, VID mapping, and feature set. |
Compared with ISL62882HRTZ-T, the ISL62882BHRTZ-T offers lower thermal resistance and larger package real estate for improved heat spreading, while RTQ2136B-QA provides higher phase count and newer protocol support-but requires full schematic and layout redesign.
Availability
ISL62882BHRTZ-T is available at Aetrix Electronics and suitable for notebook CPU/GPU voltage regulation, IMVP-6.5™ platform design, and thermally constrained mobile power delivery requiring stable component supply and long-term lifecycle support.
Supply support for ISL62882BHRTZ-T 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 acquired Intersil in 2017 and maintains full support for its high-performance analog and power management portfolio.
The ISL62882BHRTZ-T belongs to Renesas' mobile CPU/GPU voltage regulator product line, engineered specifically for Intel IMVP-6.5™-compliant notebook platforms requiring precision, efficiency, and protocol fidelity.
FAQ
What is the operating temperature range for the ISL62882BHRTZ-T?
The ISL62882BHRTZ-T is rated for an ambient operating temperature range of -10°C to +100°C, with a maximum junction temperature of +125°C. This range aligns with typical notebook platform thermal envelopes and supports reliable operation in high-ambient environments such as enclosed docking stations or passive-cooled ultrabooks. Thermal design must account for θJA = 29°C/W and use the exposed GND pad for effective heat transfer.
How does the ISL62882BHRTZ-T implement IMVP-6.5™ phase shedding?
The ISL62882BHRTZ-T implements IMVP-6.5™ phase shedding through dedicated PSI# and DPRSLPVR inputs: asserting PSI# low triggers Phase 2 disablement and adjusts overcurrent protection thresholds accordingly, while DPRSLPVR high activates deeper sleep mode, disabling LGATE1b and entering diode emulation. These actions are fully hardware-autonomous and require no firmware intervention, ensuring deterministic timing per IMVP-6.5™ specification.
Can the ISL62882BHRTZ-T be used with both DCR and resistor-based current sensing?
Yes, the ISL62882BHRTZ-T supports both lossless inductor DCR sensing (via ISEN1/ISEN2) and precision shunt resistor sensing. DCR sensing uses the inductor's inherent resistance and is thermally compensated using a single NTC thermistor on the NTC pin. Resistor sensing connects external sense resistors to ISEN1/ISEN2 and provides higher accuracy at the cost of added power loss and board space.
What is the purpose of the FB2 pin on the ISL62882BHRTZ-T?
The FB2 pin on the ISL62882BHRTZ-T is a dedicated compensation node used exclusively in 1-phase mode (e.g., GPU applications). An internal switch connects FB2 to FB only in 2-phase mode; in 1-phase mode, the switch opens and external RC components on FB2 optimize loop stability and transient response. This allows independent tuning of compensation for CPU (2-phase) and GPU (1-phase) configurations without redesigning the feedback network.
Does the ISL62882BHRTZ-T support differential remote voltage sensing?
Yes, the ISL62882BHRTZ-T supports true differential remote voltage sensing via the VSEN and RTN pins. VSEN connects to the microprocessor die's VCORE sense point, and RTN connects to the die's ground reference-both routed as a tightly coupled pair. This configuration rejects PCB trace resistance and inductance, enabling ±0.5% regulation accuracy at the die despite milliohm-level IR drops in the power delivery path.
ISL62882BHRTZ-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 48-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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-T FAQ
1.How can I place an order for ISL62882BHRTZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL62882BHRTZ-T 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-T reliable?
The price and inventory of ISL62882BHRTZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL62882BHRTZ-T is usually 5 days.
3.What payment methods are accepted for ISL62882BHRTZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL62882BHRTZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL62882BHRTZ-T?
ISL62882BHRTZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL62882BHRTZ-T 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-T?
For technical support, including ISL62882BHRTZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL62882BHRTZ-T requirements.
6.How does Aetrix verify that ISL62882BHRTZ-T is sourced from the original manufacturer or authorized distributors?
All ISL62882BHRTZ-T 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-T meets industry standards.
7.What is the process for return or replacement of ISL62882BHRTZ-T?
All ISL62882BHRTZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL62882BHRTZ-T, 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-T part is unused and in its original packaging.
Return procedure for ISL62882BHRTZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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