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Renesas ISL6260BCRZ
- Part No.:
- ISL6260BCRZ
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
ISL6260BCRZ.pdf
- Description:
- IC REG CONV INTEL 1OUT 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,733
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Product details
Overview
ISL6260BCRZ from Intersil is a 3-phase IMVP-6-compliant multiphase core voltage regulator IC for mobile Intel CPUs, supporting 0.300V–1.500V output via 7-bit VID, ±0.5% system accuracy over temperature, and programmable 1/2/3-channel operation in a 40-lead QFN 6×6 mm package.
For engineers reviewing the ISL6260BCRZ datasheet, ISL6260BCRZ pinout, ISL6260BCRZ application, or ISL6260BCRZ equivalent, this controller delivers R3® modulator-based fast transient response, PSI#-driven phase dropping (PWM2 disable), DCR/resistor current sensing, and differential remote die sensing per IMVP-6 specifications.
Technical Context
The ISL6260BCRZ implements Intel IMVP-6 protocol with Robust Ripple Regulator (R3®) modulator architecture, synthesizing inductor ripple analogs for hysteretic PWM control while retaining error amplifier stability. It supports dynamic phase add/drop via PSI# signal, adjusting overcurrent protection thresholds and channel timing accordingly.
It enables dual-mode operation: forced continuous conduction (FCCM) or diode-emulation DCM, with DPRSLPVR/DPRSTP# logic controlling slew rate (±2 mV/µs or ±10 mV/µs) and Deeper Sleep entry/exit behavior. Current balancing across phases is maintained via ISEN1–ISEN3 inputs and VSUM summation node feeding the droop amplifier.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage Range | 0.300 V to 1.500 V in 12.5 mV steps via 7-bit VID; supports on-the-fly VID changes per IMVP-6. |
| System Accuracy | ±0.5 % over –10°C to +100°C at 0.75–1.5 V; ensures tight CPU core voltage regulation under thermal stress. |
| Channel Configuration | Programmable 1-, 2-, or 3-phase operation; ISL6260BCRZ drops PWM2 on PSI# assertion, rebalancing remaining channels. |
| Switching Frequency | 200–500 kHz adjustable via VW pin resistor; nominal 300 kHz at RFSET = 7 kΩ with 3-phase CCM. |
| Current Sensing | Supports lossless DCR sensing (with NTC thermal compensation) or discrete precision resistor sensing per phase. |
| Remote Sensing | Differential VSEN/RTN interface enables direct CPU die voltage measurement and closed-loop regulation. |
| Protection Features | OVH (200 mV), OVHS (1.7 V), UV (–295 mV), OCP (9 mV imbalance threshold), VR_TT# thermal alert, and PGOOD sequencing. |
Pinout & Package
ISL6260BCRZ is housed in a Pb-free, RoHS-compliant 40-lead QFN package (6 mm × 6 mm, 0.5 mm pitch) with exposed thermal pad. The package supports high-power density layout and efficient heat dissipation in mobile CPU VRMs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VID0–VID6 | 7-bit voltage identification input | Directly sets target output voltage per IMVP-6 table; LSB = VID0, MSB = VID6. |
| PWM1–PWM3 | Phase gate drive outputs | PWM1/PWM3 always active; PWM2 tri-stated when PSI# = low (ISL6260BCRZ-specific behavior). |
| ISEN1–ISEN3 | Per-phase current sense inputs | Accepts DCR-derived or resistor-derived current signals; used for droop, OCP, and channel balancing. |
| VSEN / RTN | Differential remote sense pair | Connects directly to CPU die for accurate core voltage feedback, minimizing PCB IR drop error. |
| PSI# | Low-load indicator input | Triggers PWM2 disable and OCP threshold scaling; distinguishes ISL6260BCRZ from ISL6260CRZ. |
| DPRSLPVR / DPRSTP# | Deeper Sleep mode control | Configures soft-slew rates (±2 mV/µs) and enables DCM operation for light-load efficiency. |
| SOFT | Soft-start ramp control | Capacitor-to-VSS sets output voltage slew rate during startup and VID transitions. |
| OCSET | Overcurrent trip reference | Resistor-to-VO sets DROOP voltage limit; internal 10 µA source enables precise OCP threshold setting. |
Key Features
| Feature | Design Value |
|---|---|
| R3® Robust Ripple Regulator modulator | Combines fixed-frequency stability and hysteretic speed; enables faster load transients than conventional PWM controllers. |
| PSI#-enabled dynamic phase management | Disables PWM2 and scales OCP threshold to 2/3 of full-scale when PSI# asserted, reducing quiescent power without layout change. |
| Differential remote voltage sensing (VSEN/RTN) | Eliminates PCB trace resistance error by measuring voltage directly at CPU die, ensuring IMVP-6 compliance. |
| Thermally compensated DCR current sensing | Single NTC on NTC pin compensates copper winding resistance drift, maintaining load-line accuracy across temperature. |
| Programmable channel count (1/2/3) | Configured via external connections (e.g., tie unused PWM to VDD, ground ISEN); supports flexible design reuse and cost optimization. |
| Deeper Sleep slew rate control (DPRSLPVR) | Reduces audible noise by limiting dV/dt to ±2 mV/µs during C4 entry/exit, while DPRSTP# enables fast wake-up recovery. |
Applications
| Mobile CPU Core Regulation | IMVP-6 Compliant Laptop VRM |
|---|---|
Use Scenario: Powering Intel Pentium M and Core Solo/Duo processors in ultraportable laptops requiring dynamic voltage scaling and deep sleep modes. IC Role / Device Role / Timing Role: Primary multiphase core voltage regulator implementing IMVP-6 protocol with VID decoding, droop control, and PSI#-driven phase shedding. Use Value: Enables >90% efficiency at 50 A load (Fig. 1), ±0.5% output accuracy, and <600 µs soft-start-meeting Intel's mobile CPU power delivery requirements. |
Use Scenario: Integrated into motherboard VRM designs where space, thermal performance, and IMVP-6 compliance are critical. IC Role / Device Role / Timing Role: Central controller coordinating ISL6208 gate drivers, DCR sensing network, and thermal monitoring for 3-phase buck conversion. Use Value: Reduces component count via lossless DCR sensing, eliminates need for external current-sense resistors, and lowers BOM cost while improving reliability. |
| Dynamic Load-Line Regulation | Thermally Adaptive CPU Power |
Use Scenario: Maintaining precise load-line droop (V = VVID – I × RDS) across 0–70 A load range in high-performance notebooks. IC Role / Device Role / Timing Role: Implements IMVP-6 load-line using VSUM-based droop amplifier and DFB/VO feedback loop. Use Value: Achieves <±5 mV load-line error across temperature via NTC-compensated DCR sensing-critical for CPU stability under varying thermal conditions. |
Use Scenario: Compensating for CPU junction temperature rise during sustained workloads using on-die thermal feedback. IC Role / Device Role / Timing Role: Monitors NTC thermistor via dedicated NTC pin to adjust gain/time constant of DCR sensing path. Use Value: Sustains ±0.5% system accuracy over –10°C to +100°C ambient, preventing thermal-induced voltage deviation that could trigger CPU throttling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multiphase core regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL6260CRZ | Pin-to-pin compatible but lacks PSI#-driven PWM2 disable; no dynamic phase dropping or OCP scaling. | Suitable for fixed 3-phase systems without Deeper Sleep or EBL requirements; simpler control logic. | Select ISL6260CRZ only if PSI# functionality is unused and static 3-phase operation suffices. |
| RT8803GQW | 3-phase IMVP-6 controller with integrated MOSFET drivers; different pinout, no DCR compensation NTC input. | Targets space-constrained designs needing driver integration; requires redesign of gate drive and sensing network. | Choose RT8803GQW only when board area reduction justifies full schematic/layout revision and loss of NTC thermal compensation. |
Compared with ISL6260CRZ, ISL6260BCRZ adds dynamic phase management for battery life extension; compared with RT8803GQW, it offers superior thermal compensation and proven compatibility with ISL6208 drivers-making it optimal for IMVP-6 laptop VRMs requiring precision and flexibility.
Availability
ISL6260BCRZ is available at Aetrix Electronics and suitable for mobile computing platforms, Intel CPU power delivery systems, and IMVP-6-compliant notebook VRMs requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ISL6260BCRZ 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, industrial, and communications markets.
The ISL6260BCRZ belongs to Intersil's IMVP-6 multiphase regulator product line, designed specifically to meet Intel's mobile CPU voltage regulation, transient response, and energy-efficient sleep-mode requirements.
FAQ
What is the key functional difference between ISL6260BCRZ and ISL6260CRZ?
The ISL6260BCRZ responds to the PSI# signal by disabling PWM2 and scaling overcurrent protection thresholds to 2/3 of full-scale, enabling dynamic phase shedding for enhanced battery life. The ISL6260CRZ ignores PSI# and maintains all three PWM outputs active regardless of load condition. This makes ISL6260BCRZ essential for IMVP-6 Deeper Sleep implementations, while ISL6260CRZ suits fixed-phase designs.
How does ISL6260BCRZ achieve ±0.5% system accuracy over temperature?
The ISL6260BCRZ achieves ±0.5% system accuracy over –10°C to +100°C through a combination of precision bandgap reference, differential remote sensing (VSEN/RTN), and NTC-based thermal compensation of DCR current sensing. The NTC pin adjusts both gain and time constant of the DCR path, counteracting copper winding resistance drift-ensuring consistent load-line regulation across operating temperature.
Can ISL6260BCRZ operate with only two phases, and how is it configured?
Yes, ISL6260BCRZ supports 1-, 2-, or 3-phase operation. For two-phase use, tie PWM3 to VDD and ground ISEN3; configure PWM1 and PWM2 as active outputs. The controller automatically adjusts phase timing to 180° separation and scales OCP thresholds accordingly. When PSI# is asserted, ISL6260BCRZ disables PWM2-leaving only PWM1 active-enabling seamless transition to single-phase mode.
What role does the VSUM pin play in ISL6260BCRZ operation?
The VSUM pin serves as the current summation junction for ISEN1–ISEN3 inputs, providing a high-bandwidth analog representation of total inductor current. This signal feeds the droop amplifier (DROOP = VO + K·Isum) to implement IMVP-6 load-line regulation and also supplies the overcurrent protection circuit. Accurate VSUM summation is critical for both voltage droop accuracy and balanced OCP triggering across phases.
How does DPRSLPVR affect output voltage slew rate in ISL6260BCRZ?
DPRSLPVR directly controls large-signal output voltage slew rate: when high, it limits dV/dt to ±2 mV/µs during VID transitions and Deeper Sleep entry/exit, minimizing audible noise; when low, it allows ±10 mV/µs for fastest wake-up recovery. This dual-rate capability ensures compliance with IMVP-6 timing requirements while optimizing acoustic performance in mobile platforms.
ISL6260BCRZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- Robust Ripple Regulator™ (R3)
- Package/Case:
- 40-VFQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Obsolete
- Applications:
- Converter, Intel IMVP-6
- Voltage - Input:
- -
- Number of Outputs:
- 1
- Voltage - Output:
- 0.3V ~ 1.5V
- Operating Temperature:
- -10°C ~ 100°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 40-QFN (6x6)
ISL6260BCRZ FAQ
1.How can I place an order for ISL6260BCRZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL6260BCRZ 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 ISL6260BCRZ reliable?
The price and inventory of ISL6260BCRZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL6260BCRZ is usually 5 days.
3.What payment methods are accepted for ISL6260BCRZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL6260BCRZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL6260BCRZ?
ISL6260BCRZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL6260BCRZ 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 ISL6260BCRZ?
For technical support, including ISL6260BCRZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL6260BCRZ requirements.
6.How does Aetrix verify that ISL6260BCRZ is sourced from the original manufacturer or authorized distributors?
All ISL6260BCRZ 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 ISL6260BCRZ meets industry standards.
7.What is the process for return or replacement of ISL6260BCRZ?
All ISL6260BCRZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL6260BCRZ, 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 ISL6260BCRZ part is unused and in its original packaging.
Return procedure for ISL6260BCRZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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