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Renesas ISL62882IRTZ
- Part No.:
- ISL62882IRTZ
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
ISL62882IRTZ.pdf
- Description:
- IC REG CTRL IMVP-6.5 1OUT 40TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,964
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Product details
Overview
ISL62882IRTZ from Renesas (formerly Intersil) is a 2-phase multiphase PWM buck regulator IC designed for IMVP-6.5™-compliant CPU and GPU core voltage regulation in notebook platforms. It delivers ±0.8% system accuracy over –40°C to +100°C, supports 7-bit VID input (0.3V–1.5V), integrates dual gate drivers, and operates with Robust Ripple Regulator (R3™) modulator technology enabling variable-frequency transient response.
For engineers reviewing the ISL62882IRTZ datasheet, ISL62882IRTZ pinout, ISL62882IRTZ application, or ISL62882IRTZ equivalent, this page provides verified technical context on phase configuration, DCR/resistor current sensing, PSI#/DPRSLPVR dynamic phase control, differential remote sensing, and thermal monitoring - all critical for mobile VR design validation and IMVP-6.5 compliance verification.
Technical Context
The ISL62882IRTZ implements a multiphase R3™ modulator architecture with interleaved 180°-phase clock distribution, enabling superior dynamic current balance and reduced output ripple. Its master-slave topology uses a shared VW/COMP voltage window to synchronize phase timing while maintaining independent Crs-based ripple synthesis per channel.
It supports dual-mode operation: 2-phase CPU mode with dynamic phase add/drop via PSI# and DPRSLPVR, and 1-phase GPU mode with FB2-optimized compensation. Current sensing is configurable via discrete resistor or lossless inductor DCR with NTC-based thermal compensation, and light-load efficiency is enhanced by split LGATE1 drivers and adaptive body diode conduction time reduction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Regulator Type | Multiphase (1- or 2-phase) buck controller for Intel IMVP-6.5™ core power |
| Output Voltage Range | 0.300V–1.500V via 7-bit VID (12.5mV steps); ±0.8% accuracy at 0.75V–1.5V over –40°C to +100°C |
| Switching Frequency | 200–500kHz programmable; 300kHz typical with 7kΩ Rfset |
| Current Sensing | Dual-mode: precision resistor or lossless inductor DCR with single NTC thermistor compensation |
| Thermal Monitoring | NTC input with 1.18–1.22V overtemperature threshold; VR_TT# open-drain fault indicator |
| Gate Drivers | Integrated dual high-side (UGATE1/UGATE2) and split low-side (LGATE1a/LGATE1b/LGATE2) drivers; 2A UGATE sink/source, 4A LGATE sink |
| Protection Features | Programmable OCP (18.3–22.1µA in 2-phase), UV/OV lockout, shoot-through protection, PGOOD with 6.3–8.9ms delay |
Pinout & Package
ISL62882IRTZ is housed in a Pb-free 40-lead 5×5 mm TQFN package (L40.5x5) with exposed GND pad. Pin numbering follows top-view orientation with Pin 1 at top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VID0–VID6 | 7-bit voltage identification input | MSB-to-LSB digital interface setting VOUT from 0.300V to 1.500V in 12.5mV steps; supports on-the-fly VID changes |
| PHASE1 / PHASE2 | High-side MOSFET source node return | Connects to switching node of each phase; used for boot capacitor charging and gate driver reference |
| UGATE1 / UGATE2 | High-side MOSFET gate drive outputs | 2A sink/source capability; internal boot diode enables self-biasing from VCCP to BOOT pins |
| LGATE1a / LGATE1b / LGATE2 | Low-side MOSFET gate drive outputs | Split LGATE1a/LGATE1b enables deeper sleep mode control via DPRSLPVR; LGATE2 active only in 2-phase mode |
| VSEN / RTN | Differential remote voltage sense inputs | Direct connection to processor die for accurate load-line regulation; eliminates PCB trace IR drop error |
| ISEN1 / ISEN2 | Per-phase current sense inputs | Supports resistor or DCR sensing; ISEN2 pulled to 5V disables Phase 2 |
| IMON | Analog current monitor output | 120µA typical output current proportional to total output current; used for system telemetry and thermal management |
| PSI# / DPRSLPVR | Dynamic power state control inputs | PSI# triggers phase drop; DPRSLPVR enables deeper sleep mode with LGATE1b disable and OCP threshold adjustment |
| VR_ON | Regulator enable input | Logic-high (>0.75V) activates controller; leakage <1µA ensures low standby current |
| PGOOD | Open-drain power-good indicator | Pulled low after 7ms stabilization; requires external 680Ω pull-up to VCCP for proper logic level |
Key Features
| Feature | Design Value |
|---|---|
| R3™ Robust Ripple Regulator modulator | Variable-frequency operation during transients improves response speed; fixed-frequency at steady-state enhances EMI control |
| Split LGATE1 driver architecture | LGATE1a remains active in all modes; LGATE1b disabled in DPRSLPVR mode to reduce gate charge loss and improve light-load efficiency |
| Adaptive body diode conduction time reduction | Minimizes reverse conduction loss in diode emulation mode by dynamically terminating LGATE turn-off based on phase-node zero-crossing detection |
| User-selectable overshoot reduction | Reduces required output capacitance by up to 30% via programmable COMP-to-VW coupling; configurable via RBIAS resistor selection |
| FB2 compensation optimization | Enables dedicated 1-phase loop tuning via external RC network on FB2 pin, improving stability and transient performance when operating in GPU mode |
| Differential remote sensing (VSEN/RTN) | Compensates for PCB trace resistance up to 50mΩ, ensuring ±0.8% regulation accuracy at the processor die under full load |
Applications
| Mobile CPU Core Regulation | Notebook GPU Core Regulation |
|---|---|
|
Use Scenario: High-performance ultrabook CPU requiring dynamic voltage scaling and rapid load transient response during burst workloads. IC Role / Device Role / Timing Role: Primary 2-phase IMVP-6.5™ core voltage regulator controlling VCC_CORE with PSI#/DPRSLPVR-driven phase shedding and R3™-based fast transient recovery. Use Value: Achieves <10µs load-step response and ±0.8% regulation accuracy across –40°C to +100°C ambient, enabling reliable Turbo Boost operation. |
Use Scenario: Discrete GPU in thin-and-light gaming notebooks needing stable 1-phase core rail with optimized startup and thermal headroom. IC Role / Device Role / Timing Role: Dedicated 1-phase GPU VR controller using FB2-compensated loop and DPRSLPVR-triggered deep-sleep entry to minimize idle power. Use Value: Reduces GPU idle current by 35% via diode emulation and period stretching, extending battery life without compromising peak performance. |
| IMVP-6.5™ Compliance Platform | Thermally Constrained Mobile Design |
|
Use Scenario: OEM platform validation against Intel IMVP-6.5™ specification for next-gen mobile processors. IC Role / Device Role / Timing Role: Reference-compliant VR controller supporting all mandated signals (PSI#, DPRSLPVR, CLK_EN#, IMON) and timing requirements (PGOOD delay, VID slew rate). Use Value: Eliminates need for external VID translation or timing logic; built-in 5mV/µs VID slew and 13-cycle CLK_EN# assertion ensure spec alignment. |
Use Scenario: Fanless tablet or convertible with strict thermal envelope limiting VR power dissipation. IC Role / Device Role / Timing Role: Thermally aware regulator using NTC input and VR_TT# to throttle output or trigger system-level thermal mitigation before junction exceeds +125°C. Use Value: Prevents thermal runaway via 1.20V NTC trip point and 6.5Ω VR_TT# output drive, enabling safe operation in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multiphase CPU/GPU voltage regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL62882HRTZ | Same silicon, but rated for –10°C to +100°C ambient and +125°C junction; lacks extended industrial temperature range | Targeted at commercial-grade notebooks without extended cold-start requirement | Select ISL62882HRTZ only if ambient operating range is limited to –10°C to +100°C and cost sensitivity outweighs industrial qualification needs. |
| ISL62882BHRTZ | Same functionality, but in 48-lead 6×6 mm TQFN package; adds NC pins and different pinout (e.g., no LGATE1b, merged ISEN paths) | Requires PCB redesign due to larger footprint and incompatible pin mapping; intended for higher-current GPU designs | Choose ISL62882BHRTZ only when higher thermal dissipation (θJA = 29°C/W vs. 32°C/W) and additional layout routing space are available. |
Compared with ISL62882HRTZ and ISL62882BHRTZ, the ISL62882IRTZ uniquely supports –40°C cold-start operation while retaining identical R3™ modulator performance, 40-pin compatibility, and split LGATE1 architecture - making it the sole option for ruggedized mobile platforms requiring full IMVP-6.5™ compliance across extended temperature.
Availability
ISL62882IRTZ is available at Aetrix Electronics and suitable for notebook CPU core regulation, GPU core regulation, IMVP-6.5™ compliance validation, and thermally constrained mobile designs requiring stable component supply across extended temperature ranges.
Supply support for ISL62882IRTZ 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, including IMVP-compliant VR controllers.
The ISL62882IRTZ belongs to Renesas' mobile voltage regulator product line, engineered specifically for Intel IMVP-6.5™-compliant CPU and GPU core power delivery in space- and thermally-constrained notebook platforms.
FAQ
What is the operating temperature range for the ISL62882IRTZ?
The ISL62882IRTZ is specified for an ambient temperature range of –40°C to +100°C and a junction temperature range of –40°C to +125°C. This extended industrial rating distinguishes it from the ISL62882HRTZ (–10°C to +100°C) and makes it suitable for fanless or cold-environment notebook deployments where thermal margin is critical. The datasheet confirms these limits in the Recommended Operating Conditions table on Page 5.
Does the ISL62882IRTZ support both CPU and GPU voltage regulation modes?
Yes, the ISL62882IRTZ supports programmable 1-phase GPU mode and 1- or 2-phase CPU mode via RBIAS resistor selection and VID configuration. In GPU mode, it uses the FB2 pin for optimized compensation and doubles the VID slew rate when DPRSLPVR is asserted. The block diagram and Theory of Operation section (Pages 4 and 11) explicitly confirm dual-mode operation with distinct timing and control paths.
How does the R3™ modulator in the ISL62882IRTZ improve transient response?
The R3™ modulator in the ISL62882IRTZ achieves faster transient response by varying switching frequency during load steps: COMP voltage rise accelerates master clock generation, increasing effective frequency and shortening PWM on-time latency. This behavior - documented in Figure 7 and the Theory of Operation section (Page 12) - delivers superior bandwidth compared to fixed-frequency PWM while retaining 0.5% DC accuracy via the integrated error amplifier.
Can the ISL62882IRTZ use inductor DCR for current sensing?
Yes, the ISL62882IRTZ supports lossless inductor DCR current sensing on both phases via ISEN1 and ISEN2 pins. Thermal drift of DCR is compensated using a single NTC thermistor connected to the NTC pin, as shown in Figures 1 and 3 and described in the Functional Pin Descriptions (Page 3). The electrical specifications confirm DCR sensing compatibility with 1mV imbalance tolerance.
What is the purpose of the split LGATE1 driver (LGATE1a and LGATE1b) in the ISL62882IRTZ?
The split LGATE1 driver enables selective low-side MOSFET control: LGATE1a remains active in all operating modes, while LGATE1b is disabled when DPRSLPVR is high, reducing gate charge loss and conduction time during deeper sleep states. This architecture - detailed in the Functional Pin Descriptions (Page 3) and Applications section - directly improves light-load efficiency without requiring external logic or additional drivers.
ISL62882IRTZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 40-VFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Applications:
- Controller, Intel IMVP-6.5™
- Voltage - Input:
- 5V ~ 25V
- Number of Outputs:
- 1
- Voltage - Output:
- 0.013V ~ 1.5V
- Operating Temperature:
- -40°C ~ 100°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 40-TQFN (5x5)
ISL62882IRTZ FAQ
1.How can I place an order for ISL62882IRTZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL62882IRTZ 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 ISL62882IRTZ reliable?
The price and inventory of ISL62882IRTZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL62882IRTZ is usually 5 days.
3.What payment methods are accepted for ISL62882IRTZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL62882IRTZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL62882IRTZ?
ISL62882IRTZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL62882IRTZ 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 ISL62882IRTZ?
For technical support, including ISL62882IRTZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL62882IRTZ requirements.
6.How does Aetrix verify that ISL62882IRTZ is sourced from the original manufacturer or authorized distributors?
All ISL62882IRTZ 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 ISL62882IRTZ meets industry standards.
7.What is the process for return or replacement of ISL62882IRTZ?
All ISL62882IRTZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL62882IRTZ, 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 ISL62882IRTZ part is unused and in its original packaging.
Return procedure for ISL62882IRTZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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