My Inquiry
My Account
Renesas ISL6266HRZ
- Part No.:
- ISL6266HRZ
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
ISL6266HRZ.pdf
- Description:
- IC REG CONV INTEL 1OUT 48QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,790
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ISL6266HRZ from Intersil is a two-phase buck core voltage regulator implementing Intel IMVP-6+ protocol with integrated 2A gate drivers, supporting 0.300V–1.500V output via 7-bit VID, ±0.5% system accuracy over temperature, and dynamic phase shedding for CPU power delivery in mobile platforms.
For engineers reviewing the ISL6266HRZ datasheet, ISL6266HRZ pinout, ISL6266HRZ application, or ISL6266HRZ equivalent, key selection criteria include IMVP-6+ compliance, dual-phase CCM/DCM operation, DCR/resistive current sensing support, thermal monitoring via NTC, and CPU power reporting via analog PMON output.
Technical Context
The ISL6266HRZ operates as a fixed-frequency two-phase controller (410–470 kHz nominal) with interleaved channels to double ripple frequency and reduce output filter requirements. It implements Intel's load-line droop regulation using VSUM-based current summation and differential remote sensing via VSEN/RTN pins.
It supports dynamic phase management: full two-phase CCM under heavy load, single-phase CCM when PSI# is asserted, and diode-emulation mode during deeper sleep (DPRSLPVR high). Current sensing is configurable via inductor DCR or discrete resistors, with NTC-based thermal compensation for DCR gain drift.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage Range | 0.300V to 1.500V in 12.5mV steps; digitally set by 7-bit VID input per IMVP-6+ specification. |
| System Accuracy | ±0.5% over –10°C to +100°C ambient; ensures tight core voltage regulation across thermal and load conditions. |
| Switching Frequency | 410–470 kHz nominal (two-phase); adjustable via VW pin resistor; enables optimized efficiency vs. size trade-off. |
| Gate Drive Capability | 2A source/sink per UGATE/LGATE; drives MOSFETs directly without external buffers, reducing BOM count. |
| Current Sensing | Supports lossless DCR sensing or precision resistive sensing; VSUM summation enables accurate total current measurement. |
| Thermal Monitoring | NTC input with 60µA bias current; enables real-time die temperature tracking and VR_TT# thermal shutdown at 1.20V NTC threshold. |
| Power Monitor Output | PMON analog output proportional to VSEN × (DROOP − VO); enables CPU power estimation via external ADC. |
Pinout & Package
ISL6266HRZ is housed in a 48-lead 7mm × 7mm QFN package with exposed thermal pad (PKG DWG # L48.7x7), rated for –10°C to +100°C ambient operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VID0–VID6 | Digital voltage identification inputs | 7-bit LSB-to-MSB interface setting core output voltage per IMVP-6+ VID table; supports on-the-fly changes. |
| UGATE1/UGATE2 | Upper gate drive outputs | 2A capable outputs driving high-side MOSFET gates; bootstrapped via BOOT1/BOOT2 pins. |
| LGATE1/LGATE2 | Lower gate drive outputs | 2A sink / 4A sink capability; controls low-side MOSFETs with fast 4ns fall time for efficient switching. |
| VSEN/RTN | Differential remote sense inputs | Enables precise regulation at CPU die by measuring voltage directly at processor pads, compensating PCB IR drop. |
| PMON | Analog power monitor output | Provides real-time analog signal proportional to instantaneous CPU power; usable with external ADC for telemetry. |
| PSI#, DPRSTP#, DPRSLPVR | IMVP-6+ power state control inputs | Coordinate phase shedding (PSI#), deep-sleep entry/exit timing (DPRSTP#, DPRSLPVR), and mode transitions. |
Key Features
| Feature | Design Value |
|---|---|
| Two-phase IMVP-6+ compliance | Meets Intel Mobile Voltage Positioning spec for Pentium/Core processors; includes load-line droop, VID decoding, and PGOOD timing. |
| Integrated 2A gate drivers | Eliminates need for external driver ICs; reduces layout complexity and improves gate drive timing integrity. |
| Dynamic phase add/drop | Automatically transitions between 2-phase CCM, 1-phase CCM, and diode-emulation modes based on load and PSI#/DPRSLPVR signals. |
| Dual current sensing architecture | Supports both DCR-based (with NTC thermal compensation) and resistive sensing; enables flexibility in cost/performance optimization. |
| Unity-gain differential remote sensing | Accurately regulates voltage at CPU die via VSEN/RTN; maintains ≤0.5% error despite PCB trace resistance. |
Applications
| Mobile CPU Core Power Delivery | Laptop Platform Voltage Regulation |
|---|---|
Use Scenario: Regulating core voltage for Intel Pentium/Core mobile processors in ultrabooks and thin-and-light notebooks. IC Role / Device Role / Timing Role: Primary two-phase buck controller implementing IMVP-6+ protocol with dynamic phase management and remote die sensing. Use Value: Enables >90% efficiency at 35A load while maintaining ±0.5% output accuracy and sub-10ms soft-start timing per Intel spec. | Use Scenario: Providing stable, adaptive core power in OEM laptop reference designs with coupled-inductor solutions. IC Role / Device Role / Timing Role: Dual-channel synchronous buck controller with integrated gate drivers and programmable frequency for compact board layouts. Use Value: Reduces component count by eliminating external drivers and enables smaller output capacitors via 470kHz interleaving. |
| Intel Montevina-Compatible Systems | Embedded Mobile Computing Platforms |
Use Scenario: Powering CPUs in Montevina-class platforms requiring IMVP-6+ compliance and deeper sleep (C4/C6) support. IC Role / Device Role / Timing Role: Core regulator managing active, light-load, and deep-sleep states via DPRSLPVR, PSI#, and DPRSTP# signaling. Use Value: Extends battery life via diode-emulation mode and precise load-line regulation that matches CPU power-state transitions. | Use Scenario: Delivering regulated core power in fanless embedded systems where thermal headroom is constrained. IC Role / Device Role / Timing Role: Two-phase controller with NTC-based thermal compensation and VR_TT# overtemperature protection. Use Value: Prevents thermal runaway via 1.20V NTC trip point and provides real-time die temperature feedback through PMON and VR_TT#. |
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 |
|---|---|---|---|
| ISL6266AIRZ | Uses R3 Technology™ modulator (faster transient response), wider temp range (–40°C to +100°C), and enhanced load line accuracy (±0.8% vs ±0.5% at low VID). | Targeted for newer platforms requiring improved light-load efficiency and deeper sleep support; not pin-compatible due to different internal logic timing. | Select ISL6266AIRZ for new designs needing R3 modulator benefits and extended temperature operation. |
| RT8802CGQW | Single-chip dual-phase controller with integrated MOSFET drivers, 0.3–1.5V output, but lacks IMVP-6+ specific features like DPRSLPVR and PSI# interface. | Used in non-Intel platforms or custom CPU power schemes; no native support for Intel deeper sleep states or IMVP-6+ PGOOD timing. | Choose RT8802CGQW only for non-IMVP-6+ applications where Intel protocol compliance is not required. |
Compared with ISL6266AIRZ, the ISL6266HRZ offers fixed-frequency operation and legacy IMVP-6+ support but lacks R3 modulator advantages; versus RT8802CGQW, it delivers full Intel protocol compliance at the cost of higher external component count for current sensing and thermal monitoring.
Availability
ISL6266HRZ is available at Aetrix Electronics and suitable for mobile CPU core power delivery, laptop platform voltage regulation, and Intel Montevina-compatible systems requiring stable component supply and long-term design continuity.
Supply support for ISL6266HRZ 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 Corporation (now part of Renesas Electronics) is a semiconductor company specializing in power management, precision analog, and interface ICs for computing, industrial, and communications markets.
The ISL6266HRZ belongs to Intersil's IMVP-6+ core controller product line, designed specifically for Intel mobile microprocessor power delivery with emphasis on accuracy, efficiency, and protocol compliance.
FAQ
What is the operating temperature range for the ISL6266HRZ?
The ISL6266HRZ is specified for operation from –10°C to +100°C ambient temperature. Its thermal protection circuitry activates via the VR_TT# pin when the internal junction temperature approaches 150°C, and the NTC input enables external thermal compensation for DCR current sensing accuracy across this full range.
Does the ISL6266HRZ support both DCR and resistive current sensing?
Yes, the ISL6266HRZ supports both lossless inductor DCR sensing and precision resistive current sensing. It uses the VSUM pin to sum channel currents, and its internal droop amplifier processes this signal for load-line regulation and overcurrent protection. An external NTC network is required only for DCR-based designs to compensate copper temperature drift.
How does the ISL6266HRZ implement Intel IMVP-6+ load-line regulation?
The ISL6266HRZ implements IMVP-6+ load-line regulation by generating a droop voltage proportional to total output current (via VSUM), then subtracting it from the VID-set reference at the DFB pin. This creates a controlled voltage drop (e.g., 1mΩ × IOUT) that matches Intel's specified load-line slope, ensuring optimal CPU power delivery and stability during load transients.
What is the purpose of the PMON pin on the ISL6266HRZ?
The PMON pin on the ISL6266HRZ provides an analog output proportional to the product of VSEN and the droop voltage (DROOP − VO), enabling real-time CPU power estimation. Its voltage range spans 0.308V to 2.8V depending on load and VID setting, and it can source or sink up to 2mA - allowing direct connection to an external ADC for system-level power telemetry.
Can the ISL6266HRZ be used in single-phase configurations?
No, the ISL6266HRZ is strictly a two-phase controller and does not support single-phase operation. Unlike the ISL6266A variant, it lacks R3 Technology™ and does not implement automatic phase shedding or diode-emulation modes. It operates exclusively in two-phase continuous conduction mode (CCM) regardless of load condition or PSI# state.
ISL6266HRZ 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:
- -10°C ~ 100°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-QFN (7x7)
ISL6266HRZ FAQ
1.How can I place an order for ISL6266HRZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL6266HRZ 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 ISL6266HRZ reliable?
The price and inventory of ISL6266HRZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL6266HRZ is usually 5 days.
3.What payment methods are accepted for ISL6266HRZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL6266HRZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL6266HRZ?
ISL6266HRZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL6266HRZ 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 ISL6266HRZ?
For technical support, including ISL6266HRZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL6266HRZ requirements.
6.How does Aetrix verify that ISL6266HRZ is sourced from the original manufacturer or authorized distributors?
All ISL6266HRZ 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 ISL6266HRZ meets industry standards.
7.What is the process for return or replacement of ISL6266HRZ?
All ISL6266HRZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL6266HRZ, 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 ISL6266HRZ part is unused and in its original packaging.
Return procedure for ISL6266HRZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL6266HRZ Tags
-
TPS51206DSQR
Texas Instruments
-
TPS51200DRCR
Texas Instruments
-
TPS51200DRCT
Texas Instruments
-
TPS62740DSSR
Texas Instruments
-
TPS51100DGQR
Texas Instruments
-
NCP51200MNTXG
onsemi
-
NCP51400MNTXG
onsemi
-
RT9026GSP
Richtek USA Inc.
-
LP2998MRX/NOPB
Texas Instruments
-
TPS51200QDRCRQ1
Texas Instruments
-
DPA423GN-TL
Power Integrations
-
LM10011SD/NOPB
Texas Instruments
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
