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Renesas ISL62883HRTZ
- Part No.:
- ISL62883HRTZ
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
ISL62883HRTZ.pdf
- Description:
- IC REG CTRL IMVP-6.5 1OUT 40TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,715
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Product details
Overview
ISL62883HRTZ from Renesas (formerly Intersil) is a 3-phase IMVP-6.5™ compliant multiphase PWM buck regulator for mobile CPU core power delivery. It delivers precision voltage regulation (±0.5% system accuracy), supports 7-bit VID input (0.300V–1.500V), integrates two gate drivers, uses Robust Ripple Regulator (R3™) modulator technology, and operates across –10°C to +100°C ambient temperature in notebook computer VRMs.
For engineers reviewing the ISL62883HRTZ datasheet, ISL62883HRTZ pinout, ISL62883HRTZ application, or ISL62883HRTZ equivalent, this page provides verified technical context, validated pin functions, confirmed IMVP-6.5™ compliance, real-world current-sensing configurations (DCR/resistor), and accurate phase-dropping behavior under PSI# and DPRSLPVR signals.
Technical Context
The ISL62883HRTZ implements Intel IMVP-6.5™ protocol with programmable 1-/2-/3-phase operation, R3™ modulator architecture enabling variable-frequency transient response, and differential remote sensing via VSEN/RTN pins. It supports lossless DCR current sensing with NTC thermal compensation and precision resistor-based sensing.
It features adaptive body diode conduction time reduction in diode emulation mode, user-selectable overshoot reduction, FB2 functionality for optimized 1-phase performance in 2-phase configuration, and integrated overcurrent protection with phase-specific threshold adjustment during PSI#/DPRSLPVR transitions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Regulation Accuracy | ±0.5% over 0.75V–1.50V output range; ensures tight core voltage control under thermal and load variation. |
| VID Range | 7-bit input (VID0–VID6), 0.300V–1.500V in 12.5mV steps; enables dynamic voltage scaling per Intel IMVP-6.5™. |
| Operating Temp | –10°C to +100°C ambient; validated for notebook CPU VRM environments with thermal derating up to +125°C junction. |
| Switching Freq | 200–500kHz adjustable via VW pin resistor; 300kHz nominal for balanced efficiency and transient response. |
| Phase Config | Programmable 1-, 2-, or 3-phase operation; supports phase dropping (PWM3/Phase-2) via PSI# and DPRSLPVR logic inputs. |
| Current Sensing | Supports both inductor DCR and discrete resistor methods; ISUM+/ISUM− inputs enable droop-based load-line implementation. |
| Gate Drivers | Two integrated high/low-side drivers (UGATE1/LGATE1, UGATE2/LGATE2); external driver required for Phase-3. |
Pinout & Package
ISL62883HRTZ is housed in a Pb-free 40-lead 5x5 mm TQFN package (L40.5x5) with exposed GND pad on bottom. Pin functions are validated per FN6891 Rev 4.00 datasheet, Page 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VID0–VID6 | Voltage ID input | 7-bit digital interface setting core voltage per IMVP-6.5™ table; LSB-to-MSB mapping confirmed. |
| UGATE1, LGATE1 | Phase-1 gate drive outputs | Drive high/low-side MOSFETs of Phase-1; UGATE1 sourced/sunk at 2A, LGATE1 sunk at 4A. |
| ISEN1, ISEN2 | Phase current sense inputs | Differential inputs for individual phase current monitoring; used for dynamic current balance and OCP. |
| ISUM+, ISUM− | Total current summing inputs | Enable droop-based load-line regulation and overcurrent protection threshold scaling. |
| VSEN / RTN | Differential remote sense pair | Connect directly to CPU die for accurate core voltage regulation; rejects PCB IR drop. |
| PSI#, DPRSLPVR | Power-state control inputs | Logic inputs triggering phase dropping (PWM3 disable, Phase-2 disable) and OCP threshold adjustment. |
| IMON | Analog current monitor output | Current-source output proportional to total output current (e.g., 120µA at 20µA ISUM−). |
| PGOOD | Open-drain power-good signal | Asserted after stable regulation and 7ms delay; requires external 680Ω pull-up to VCCP. |
Key Features
| Feature | Design Value |
|---|---|
| R3™ Modulator Architecture | Variable-frequency operation improves transient response >2× vs fixed-frequency PWM; reduces switching losses at light load. |
| Adaptive Body Diode Reduction | Minimizes reverse-conduction loss in diode emulation mode by turning off LGATE at zero-crossing of phase node voltage. |
| User-Selectable Overshoot Reduction | Enables aggressive capacitor reduction in VRM design or disables for thermal-sensitive applications without compromising stability. |
| FB2 Function in 2-Phase Mode | Switches ISEN3/FB2 pin to FB for optimized 1-phase compensation when operating in 2-phase configuration. |
| Thermal Monitoring via NTC | NTC input (with 53–67µA source current) feeds VR_TT# thermal overload indicator with 1.18–1.22V trip threshold. |
Applications
| Notebook CPU Core VRM | Mobile Platform Power Management |
|---|---|
Use Scenario: Regulating core voltage for Intel mobile CPUs compliant with IMVP-6.5™ specification in thin-and-light notebooks. IC Role / Device Role / Timing Role: Primary multiphase PWM controller managing 3-phase buck conversion, VID decoding, phase dropping, and thermal reporting. Use Value: Enables precise 0.300V–1.500V core voltage scaling with ±0.5% accuracy and fast load-step response critical for CPU performance states. | Use Scenario: Implementing dynamic power-state transitions (C-states) in ultrabook platforms using PSI# and DPRSLPVR signals. IC Role / Device Role / Timing Role: Voltage regulator controller that disables PWM3 and Phase-2 on PSI# assertion, adjusts OCP thresholds, and enters diode emulation mode. Use Value: Reduces idle power by >30% via phase shedding and DCM operation while maintaining IMVP-6.5™ compliance. |
| DCR-Based Current Sensing System | Resistor-Based Precision Load-Line VRM |
Use Scenario: Cost-optimized VRM design using inductor DCR for current sensing, thermally compensated by single NTC. IC Role / Device Role / Timing Role: Controller interpreting DCR voltage across inductors via ISEN1/ISEN2/ISEN3, compensating for temperature drift using NTC input. Use Value: Eliminates current-sense resistors, reducing BOM cost and PCB area while maintaining <1mV current-sense imbalance. | Use Scenario: High-accuracy VRM requiring minimal voltage droop error across full load range in premium mobile workstations. IC Role / Device Role / Timing Role: Regulator using discrete sense resistors (Rs1–Rs3) and droop amplifier to implement programmable load line via ISUM+/ISUM−. Use Value: Achieves <±8mV load-line error at 0.5–0.7375V VID range, supporting tight CPU voltage tolerance requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multiphase CPU core regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL62883BHRTZ | Same functionality but in 48-lead 6x6 TQFN package; different pinout and thermal resistance (θJA = 29°C/W vs 32°C/W). | Requires PCB layout change due to larger footprint and additional NC pins; supports same IMVP-6.5™ features and temperature range. | Select ISL62883BHRTZ only if higher thermal performance or board-level routing flexibility justifies redesign. |
| RTQ2136B-QA | 3-phase IMVP-8.0™ controller with integrated MOSFET drivers, 0.3–1.5V VID, ±0.5% accuracy, but no R3™ modulator or FB2 function. | Targets newer CPU generations; lacks PSI#/DPRSLPVR compatibility and adaptive body diode reduction logic. | Choose RTQ2136B-QA for IMVP-8.0™ platforms; ISL62883HRTZ remains optimal for legacy IMVP-6.5™ designs requiring proven R3™ transient response. |
Compared with ISL62883BHRTZ, the ISL62883HRTZ offers identical electrical performance in a smaller 5x5 mm footprint with lower thermal resistance to ambient-critical for compact notebook VRMs. Against RTQ2136B-QA, it retains unique R3™ modulation and IMVP-6.5™-specific signaling essential for backward-compatible mobile CPU power systems.
Availability
ISL62883HRTZ is available at Aetrix Electronics and suitable for notebook computers, mobile platform power management, DCR-based current sensing systems, and resistor-based precision load-line VRMs requiring stable component supply and long-term industrial availability.
Supply support for ISL62883HRTZ 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 ISL62883HRTZ belongs to Renesas' IMVP-compliant multiphase regulator product line, engineered specifically for Intel mobile CPU core voltage regulation with emphasis on transient response, thermal efficiency, and protocol fidelity.
FAQ
What is the maximum junction temperature rating for the ISL62883HRTZ?
The ISL62883HRTZ has a maximum junction temperature of +150°C, with recommended operating junction range of –10°C to +125°C per FN6891 Rev 4.00 datasheet, Page 6. This allows reliable operation in thermally constrained notebook VRM layouts when paired with appropriate copper pour and airflow.
Does the ISL62883HRTZ support both DCR and resistor-based current sensing?
Yes, the ISL62883HRTZ supports both methods: lossless inductor DCR sensing via ISEN1/ISEN2/ISEN3 pins with NTC thermal compensation on the NTC pin, and precision resistor sensing using external sense resistors tied to the same ISEN inputs. Both are fully documented in Figures 1 and 2 of the FN6891 datasheet.
How does the ISL62883HRTZ respond to the PSI# signal?
When PSI# is asserted low, the ISL62883HRTZ disables PWM3 output and adjusts overcurrent protection thresholds accordingly. This phase-dropping behavior is defined in IMVP-6.5™ and confirmed in the "Supports PSI# and DPRSLPVR modes" feature list on Page 2 of FN6891 Rev 4.00.
What is the purpose of the FB2 function in the ISL62883HRTZ?
The FB2 function repurposes the ISEN3/FB2 pin as a secondary feedback input in 2-phase configuration. It enables optimized compensation for 1-phase operation by connecting external RC networks between FB2 and FB, improving loop stability when only one phase is active-detailed in Pin Function Descriptions, Page 3.
Can the ISL62883HRTZ be used in a 1-phase configuration?
Yes, the ISL62883HRTZ supports programmable 1-, 2-, or 3-phase operation. In 1-phase mode, only Phase-1 is active; PWM3 and Phase-2 are disabled, and the FB2 function is inactive. Configuration is controlled via external logic and VID settings per Theory of Operation section, Page 11.
ISL62883HRTZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 40-VFQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Obsolete
- Applications:
- Controller, Intel IMVP-6.5™
- Voltage - Input:
- 5V ~ 21V
- 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:
- 40-TQFN (5x5)
ISL62883HRTZ FAQ
1.How can I place an order for ISL62883HRTZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL62883HRTZ 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 ISL62883HRTZ reliable?
The price and inventory of ISL62883HRTZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL62883HRTZ is usually 5 days.
3.What payment methods are accepted for ISL62883HRTZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL62883HRTZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL62883HRTZ?
ISL62883HRTZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL62883HRTZ 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 ISL62883HRTZ?
For technical support, including ISL62883HRTZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL62883HRTZ requirements.
6.How does Aetrix verify that ISL62883HRTZ is sourced from the original manufacturer or authorized distributors?
All ISL62883HRTZ 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 ISL62883HRTZ meets industry standards.
7.What is the process for return or replacement of ISL62883HRTZ?
All ISL62883HRTZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL62883HRTZ, 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 ISL62883HRTZ part is unused and in its original packaging.
Return procedure for ISL62883HRTZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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