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Renesas ISL6262IRZ
- Part No.:
- ISL6262IRZ
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
ISL6262IRZ.pdf
- Description:
- IC REG CONV INTEL 1OUT 48QFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
ISL6262IRZ from Intersil is a two-phase buck core voltage regulator IC implementing Intel IMVP-6 protocol for mobile CPUs, featuring integrated 2A gate drivers, R3™ modulator architecture, 0.5% system output voltage accuracy over –40°C to +100°C, and dynamic phase add/drop control for active/PSI#/deeper sleep modes. It delivers up to 50A output with DCR or resistive current sensing and supports VID-adjustable 0.300V–1.500V core voltage.
For engineers reviewing the ISL6262IRZ datasheet, ISL6262IRZ pinout, ISL6262IRZ application, or ISL6262IRZ equivalent, key selection considerations include IMVP-6 compliance, industrial temperature range (–40°C to +100°C), 48-pin 7×7 QFN package, dual-phase CCM/DCM mode transitions, and differential remote die sensing for CPU voltage regulation.
Technical Context
The ISL6262IRZ implements R3™ Robust Ripple Regulator modulation-synthesizing inductor ripple analogs for hysteretic PWM pulse-width determination while retaining an error amplifier for precise 0.5% voltage regulation. Its switching frequency is programmable from 200–500kHz via VW pin resistor.
It supports three operational modes: two-phase continuous conduction mode (CCM) at heavy load, one-phase CCM when PSI# is asserted, and single-phase diode-emulation discontinuous conduction mode (DCM) during deeper sleep (DPRSLPVR high). Current sensing uses either lossless DCR with NTC thermal compensation or precision resistive shunts, with static/dynamic current sharing across phases.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage Range | 0.300V–1.500V via 7-bit VID input; enables dynamic CPU core voltage scaling per IMVP-6 specification. |
| System Accuracy | ±0.8% over –40°C to +100°C (ISL6262IRZ grade); ensures stable core regulation across industrial ambient conditions. |
| Operating Temperature | –40°C to +100°C ambient; validated for mobile computing platforms requiring extended thermal robustness. |
| Switching Frequency | 200–500kHz (user-programmable via VW pin resistor); balances efficiency, EMI, and component size in compact CPU VR designs. |
| Gate Drive Capability | 2A source/sink per UGATE/LGATE; drives high-side and low-side MOSFETs directly without external buffers. |
| Current Sensing | Supports both DCR (with NTC thermal compensation) and precision resistive methods; maintains load-line accuracy and enables accurate overcurrent protection. |
| Protection Features | Overvoltage (200mV trip), severe overvoltage (1.7V), undervoltage (–300mV), overcurrent, thermal shutdown (via VR_TT#), and PGOOD monitoring. |
Pinout & Package
ISL6262IRZ is housed in a RoHS-compliant, Pb-free 48-lead 7mm × 7mm QFN package with exposed thermal pad (PKG DWG # L48.7x7). The package supports high-power dissipation with θJA = 29°C/W and θJC = 4.5°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VID0–VID6 | 7-bit digital voltage identification input | LSB-to-MSB interface to CPU for real-time core voltage selection; supports on-the-fly VID changes. |
| PSI# | Phase-select indicator input | Asserted low to command smooth transition from 2-phase to 1-phase CCM operation under medium load. |
| DPRSLPVR | Deeper Sleep Enable input | High logic enables diode-emulation DCM mode for maximum light-load efficiency in C4/C6 states. |
| VSEN / RTN | Differential remote sense inputs | Connects directly to CPU die for accurate closed-loop regulation per IMVP-6; rejects PCB IR drop. |
| ISEN1 / ISEN2 | Per-phase current sense inputs | Enables individual channel current monitoring and static/dynamic balancing between phases. |
| UGATE1/2, LGATE1/2 | Integrated gate drive outputs | Drive high-side and low-side MOSFETs with 2A peak current; eliminates need for external drivers. |
| PGOOD | Open-drain power-good output | Signals valid core voltage after 6.8ms delay; used by system logic to release CPU reset. |
| VR_TT# | Open-drain thermal fault output | Pulled low when internal junction exceeds 125°C; 10Ω pull-down enables fast thermal shutdown response. |
Key Features
| Feature | Design Value |
|---|---|
| R3™ Modulator Architecture | Combines hysteretic transient response with error amplifier stability-enabling fastest load-step recovery among IMVP-6 regulators without sacrificing DC accuracy. |
| Dynamic Phase Management | Automatically adds/drops phases based on PSI#, DPRSLPVR, and DPRSTP# signals-reducing switching losses by >30% at light loads while preserving transient capability. |
| Differential Remote Sensing | VSEN/RTN inputs reject PCB trace resistance; ensures ±0.8% regulation accuracy at CPU die across full temperature and load range. |
| Thermally Compensated DCR Sensing | Single NTC network compensates copper winding resistance drift-maintains IMVP-6 load-line accuracy over –40°C to +100°C. |
| Programmable Soft-Start Slew Rate | SOFT pin capacitor sets output voltage ramp rate (e.g., 2.5mV/µs); prevents inrush current and ensures controlled CPU boot sequence. |
| IMVP-6 Protocol Compliance | Fully implements VID decoding, load-line droop, PGOOD timing, CLK_EN# synchronization, and C4/C6 entry/exit sequences per Intel specification Rev 1.5. |
Applications
| Mobile CPU Core Regulation | Laptop Platform Power Delivery |
|---|---|
Use Scenario: Regulating core voltage for Intel Pentium M/Core Duo processors in ultraportable notebooks with aggressive thermal constraints. IC Role / Device Role / Timing Role: Two-phase IMVP-6 buck controller managing up to 50A load with dynamic phase shedding and diode-emulation DCM during C4/C6 sleep states. Use Value: Achieves >90% efficiency at 20A and >85% at 1A via automatic mode transitions-extending battery life without compromising transient response. |
Use Scenario: Primary core VR in dual-core laptop motherboards requiring robust start-up sequencing, thermal monitoring, and compatibility with chipset power-good handshaking. IC Role / Device Role / Timing Role: Central voltage regulator coordinating with MCH/ICH via PGD_IN, CLK_EN#, and VR_TT# signals to synchronize CPU, memory, and peripheral power states. Use Value: Integrated 2A gate drivers and differential sensing eliminate 6 external components vs. discrete driver solutions-reducing BOM cost and PCB area by ~25%. |
| Embedded Mobile Computing | Industrial Tablet Power Systems |
Use Scenario: Powering ARM/x86 application processors in fanless tablets where silent operation and thermal headroom are critical. IC Role / Device Role / Timing Role: IMVP-6-compliant core regulator supporting deep-sleep entry/exit with sub-10µs PSI# response and seamless VID+mode co-ordination. Use Value: R3™ modulator achieves <50mV undershoot on 30A/µs load steps-preventing CPU brownouts during burst workloads in thermally constrained enclosures. |
Use Scenario: High-reliability CPU power in ruggedized industrial tablets operating continuously at –40°C to +85°C ambient. IC Role / Device Role / Timing Role: Industrial-grade variant (ISL6262IRZ) delivering guaranteed ±0.8% output accuracy and thermal fault signaling across full temperature range. Use Value: VR_TT# open-drain output interfaces directly with PLC-level safety controllers-enabling fail-safe shutdown within 100µs of overtemperature detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar two-phase IMVP-6 core regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL6268IRZ | Same pinout, higher 60A rating, enhanced thermal performance (θJA = 26°C/W), supports 300–1000kHz fSW. | Targeted for higher-power Core 2 Duo/Quad platforms; requires larger output capacitance and revised loop compensation. | Select ISL6268IRZ when output current exceeds 50A or board layout allows tighter thermal management. |
| RT8802AGQW | 3-phase capable, 0.5% accuracy, –40°C to +105°C, but lacks integrated DCR thermal compensation and IMVP-6-specific C4/C6 timing. | Designed for generic multi-phase VR applications-not certified for Intel IMVP-6 compliance; requires external VID translation logic. | Choose RT8802AGQW only for non-Intel platforms or custom VR designs where IMVP-6 timing sequences are not required. |
Compared with ISL6262IRZ, ISL6268IRZ offers higher current headroom and wider frequency range for future-proofing, while RT8802AGQW provides phase scalability at the cost of IMVP-6 protocol fidelity-making ISL6262IRZ the optimal choice for validated, drop-in Intel mobile CPU power delivery.
Availability
ISL6262IRZ is available at Aetrix Electronics and suitable for mobile computing, embedded tablet, and industrial laptop applications requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature grade performance.
Supply support for ISL6262IRZ 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
Intersil (now part of Renesas Electronics) is a semiconductor company specializing in high-performance analog and power management ICs for computing, communications, and industrial markets.
The ISL6262IRZ belongs to Intersil's IMVP-6-compliant CPU core regulator product line, engineered specifically for energy-efficient, thermally robust voltage regulation in Intel-based mobile platforms with stringent transient and accuracy requirements.
FAQ
What is the operating temperature range of the ISL6262IRZ?
The ISL6262IRZ is rated for industrial ambient operation from –40°C to +100°C, with junction temperature support up to +125°C. This extended range is validated per datasheet Absolute Maximum Ratings and Recommended Operating Conditions, making it suitable for fanless laptops and ruggedized mobile devices where thermal margins are tight. The ISL6262IRZ maintains ±0.8% system output voltage accuracy across this full range.
Does the ISL6262IRZ support both DCR and resistive current sensing?
Yes, the ISL6262IRZ supports both lossless inductor DCR current sensing-with built-in NTC thermal compensation-and precision resistive current sensing using external shunt resistors. The device uses ISEN1 and ISEN2 pins for per-phase current monitoring and VSUM for total current summation, enabling accurate load-line implementation and overcurrent protection in either configuration. Both methods are detailed in Figures 26 and 27 of the ISL6262IRZ datasheet.
How does the ISL6262IRZ handle phase transitions between 2-phase and 1-phase operation?
The ISL6262IRZ performs smooth, glitch-free phase transitions using embedded R3™ modulator algorithms. When PSI# is asserted, it disables one phase while maintaining regulation via the remaining channel-no output voltage disturbance occurs. Transitions are synchronized with VID changes to ensure shared capacitor charging current. The controller ignores spurious PSI# glitches shorter than two switching periods, preventing unintended mode shifts during noisy system operation.
What is the purpose of the VR_TT# pin on the ISL6262IRZ?
The VR_TT# pin on the ISL6262IRZ is an open-drain thermal fault indicator that pulls low when the internal junction temperature exceeds the overtemperature threshold (typically 125°C). It features a 10Ω pull-down resistance for fast response and interfaces directly with system-level thermal management logic. This pin is distinct from general-purpose thermal monitors-it is tightly coupled to the regulator's die temperature and triggers within microseconds of thermal violation, ensuring safe CPU shutdown before damage occurs.
Can the ISL6262IRZ be used with non-Intel processors?
The ISL6262IRZ is specifically designed and validated for Intel IMVP-6 mobile CPUs-including Pentium M and Core Duo families-and implements protocol-specific features such as DPRSLPVR, DPRSTP#, CLK_EN#, and precise C4/C6 timing sequences. While its two-phase buck architecture may function with other processors, unsupported VID tables, missing handshake signals, and unvalidated mode transitions make it unsuitable for non-Intel applications without extensive re-engineering and qualification. For non-Intel platforms, consider general-purpose multi-phase controllers instead of ISL6262IRZ.
ISL6262IRZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- Robust Ripple Regulator™ (R3)
- Package/Case:
- 48-VFQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Obsolete
- Applications:
- Converter, Intel IMVP-6
- Voltage - Input:
- 5V ~ 25V
- Number of Outputs:
- 1
- Voltage - Output:
- 0.3V ~ 1.5V
- Operating Temperature:
- -40°C ~ 100°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-QFN (7x7)
ISL6262IRZ FAQ
1.How can I place an order for ISL6262IRZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL6262IRZ 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 ISL6262IRZ reliable?
The price and inventory of ISL6262IRZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL6262IRZ is usually 5 days.
3.What payment methods are accepted for ISL6262IRZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL6262IRZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL6262IRZ?
ISL6262IRZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL6262IRZ 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 ISL6262IRZ?
For technical support, including ISL6262IRZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL6262IRZ requirements.
6.How does Aetrix verify that ISL6262IRZ is sourced from the original manufacturer or authorized distributors?
All ISL6262IRZ 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 ISL6262IRZ meets industry standards.
7.What is the process for return or replacement of ISL6262IRZ?
All ISL6262IRZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL6262IRZ, 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 ISL6262IRZ part is unused and in its original packaging.
Return procedure for ISL6262IRZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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