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Renesas ISL6265CHRTZ-T
- Part No.:
- ISL6265CHRTZ-T
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
ISL6265CHRTZ-T.pdf
- Description:
- IC REG CTRLR AMD 3OUT 48TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,385
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Product details
Overview
ISL6265CHRTZ-T from Renesas (formerly Intersil) is a multi-output voltage regulator controller with integrated MOSFET drivers for AMD SVI-capable mobile CPUs. It delivers three independent output channels - two configurable as dual-phase or single-phase core regulators (VDD0/VDD1), and one dedicated Northbridge regulator (VDDNB) - supporting 0.500V–1.55V output range, 0.5% system accuracy over temperature, and R3 Technology™ modulator for fast transient response.
For engineers reviewing the ISL6265CHRTZ-T datasheet, ISL6265CHRTZ-T pinout, ISL6265CHRTZ-T application, or ISL6265CHRTZ-T equivalent, key selection considerations include its AMD SVI interface compliance, differential remote CPU die sensing, lossless DCR/rDS(ON) current sensing, phase shedding support via PSI_L, and 48-pin 6×6 mm TQFN package with -10°C to +100°C operating range.
Technical Context
The ISL6265CHRTZ-T implements a patented R3 Technology™ modulator architecture enabling variable-frequency operation during load transients, delivering faster dynamic response than fixed-frequency buck controllers. Its Serial VID (SVI) interface supports high-speed I²C-compatible bidirectional communication with AMD processors for real-time voltage adjustment in 12.5mV steps across all three outputs.
Core outputs support flexible configuration: uniplane (two-phase interleaved) or dual-plane (independent single-phase), while the Northbridge channel operates autonomously with dedicated FSET_NB, OCSET_NB, and remote sense inputs. All channels feature differential remote sensing, digital soft-start, adjustable switching frequency (200–500 kHz), and comprehensive protection including OVP/UVP/OCP.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Channels | Three independent channels: two core (VDD0/VDD1) + one Northbridge (VDDNB) |
| Output Voltage Range | 0.500V to 1.55V in 12.5mV steps via SVI interface |
| System Accuracy | ±0.5% over temperature (0.500V–1.55V range), critical for AMD mobile CPU VDD compliance |
| Switching Frequency | Programmable 200–500 kHz per channel; typical 300 kHz (core/NB) with external resistor |
| Current Sensing | Lossless DCR sensing for core outputs; rDS(ON) sensing for Northbridge |
| Gate Drive Capability | 2A sink/source per UGATE/LGATE; supports discrete MOSFETs up to 30A per phase |
| Protection Features | Overvoltage, undervoltage, overcurrent, and thermal fault detection with PGOOD assertion |
Pinout & Package
ISL6265CHRTZ-T is housed in a RoHS-compliant 48-lead 6×6 mm TQFN package (Pb-free, L48.6x6) with exposed thermal pad. Pin count and layout match ISL6265CIRTZ variants; operating ambient temperature range is -10°C to +100°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OFS/VFIXEN | Voltage offset programming / VFIX mode enable | Resistor-to-GND sets positive DC offset; pull-up to 3.3V enables VFIX mode for metal VID fallback |
| PGOOD | Open-drain power-good indicator | Asserts high only when all outputs are within ±5% UV/OV limits and no OCP fault is active |
| PWROK | System power-good input | Enables SVI interface and I²C protocol; must be low before PGOOD assertion per AMD guidelines |
| SVD, SVC | SVI bidirectional data/clock | Interface directly with AMD processor for dynamic VID updates; supports high-speed I²C timing |
| ISP0/ISN0, ISP1/ISN1, OCSET | Differential core current sense inputs | Enable lossless DCR sensing and channel balancing; OCSET sets (ISPx−ISNx) trip threshold |
| VSEN0/RTN0, VSEN1/RTN1, VSEN_NB/RTN_NB | Differential remote voltage sense | Connect directly to CPU VDD0_FB[H,L], VDD1_FB[H,L], and VDDNB_FB[H,L] pins for die-level regulation |
| BOOT0/BOOT1/BOOT_NB | Bootstrap supply for upper gate drivers | Internal bootstrap diodes charge external ceramic capacitors; enables high-side N-MOSFET drive |
| UGATE0/LGATE0, UGATE1/LGATE1, UGATE_NB/LGATE_NB | MOSFET gate drive outputs | 2A capable drivers with shoot-through protection; PHASEx pins serve as return paths |
Key Features
| Feature | Design Value |
|---|---|
| R3 Technology™ modulator | Variable-frequency control during transients improves load-step response time vs. fixed-frequency buck regulators |
| AMD Serial VID (SVI) interface | Two-wire I²C-compatible bus enables real-time voltage scaling and PSI_L power-saving mode coordination |
| Dual-plane or uniplane core configuration | Hardware-selectable topology supports both AMD Griffin dual-VDD architectures and uniplane implementations |
| Differential remote CPU die sensing | Compensates for PCB IR drop to regulate voltage precisely at CPU die, meeting AMD mobile VR requirements |
| Phase shedding with PSI_L | Reduces active phases under light load to improve efficiency without compromising transient performance |
| Integrated 2A gate drivers | Eliminates need for external drivers; supports discrete MOSFETs with minimal external components |
Applications
| AMD Griffin Platform Notebook | Notebook Dual-Plane Core Regulation |
|---|---|
Use Scenario: Power delivery for AMD Griffin-series mobile CPUs requiring separate VDD0 and VDD1 rails. IC Role / Device Role / Timing Role: Dual independent single-phase controller managing VDD0 and VDD1 with differential remote sensing and SVI voltage updates. Use Value: Enables precise, low-noise core voltage regulation meeting AMD's ±0.5% accuracy spec across temperature and load. | Use Scenario: High-efficiency CPU core power in thin-and-light notebooks with thermal constraints. IC Role / Device Role / Timing Role: Two-phase interleaved core controller (VDD0+VDD1) reducing output ripple frequency by 2× and minimizing output capacitance. Use Value: Cuts required bulk capacitance by ~30%, lowers component cost and board area while maintaining tight voltage tolerance. |
| Northbridge Voltage Regulation | Mobile CPU Power-Saving Mode Support |
Use Scenario: Dedicated voltage rail for AMD CPU Northbridge (VDDNB) in multi-chip module designs. IC Role / Device Role / Timing Role: Independent single-phase buck controller with rDS(ON) current sensing and dedicated FSET_NB/OCSET_NB programming. Use Value: Provides isolated, high-accuracy regulation for Northbridge without interfering with core loop stability or compensation. | Use Scenario: Dynamic power-state transitions (C-states) in Windows-based notebooks. IC Role / Device Role / Timing Role: SVI interface interprets PSI_L signal to initiate phase shedding, frequency scaling, and voltage droop adjustments. Use Value: Achieves >25% reduction in light-load power dissipation while maintaining fast wake-up response from deep sleep states. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-output CPU voltage regulator controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL6265CIRTZ-T | Extended temperature range (-40°C to +100°C) vs. ISL6265CHRTZ-T (-10°C to +100°C); identical pinout, features, and electrical specs | Required for industrial or extended-ambient notebook designs; not suitable for commercial-grade thermal envelopes | Select ISL6265CIRTZ-T only if full -40°C startup and operation is mandated by system specification. |
| RTQ2136BGE | Single-core 3-phase controller with integrated drivers; lacks Northbridge channel and SVI interface; uses PMBus instead of SVI | Applicable only to Intel-platform notebooks or non-AMD systems; no native AMD processor compatibility | Use RTQ2136BGE only in new Intel-based designs where SVI is irrelevant and 3-phase core scaling is preferred. |
Compared with ISL6265CIRTZ-T, the ISL6265CHRTZ-T trades extended temperature capability for lower cost and qualification scope, while RTQ2136BGE offers higher phase count but abandons AMD-specific SVI and Northbridge support entirely - making ISL6265CHRTZ-T the sole fit for Griffin-platform legacy designs requiring full AMD compliance.
Availability
ISL6265CHRTZ-T is available at Aetrix Electronics and suitable for AMD Griffin platform notebooks, dual-plane CPU voltage regulation, and Northbridge power delivery requiring stable component supply across commercial temperature grades.
Supply support for ISL6265CHRTZ-T 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 product support, documentation, and manufacturing continuity for the ISL6265C family.
The ISL6265C product line was designed specifically for AMD mobile CPU platforms requiring SVI-compliant, multi-rail voltage regulation with integrated gate drivers and precision remote sensing.
FAQ
What is the operating temperature range for the ISL6265CHRTZ-T?
The ISL6265CHRTZ-T is rated for an ambient operating temperature range of -10°C to +100°C, as specified in the official FN6976 datasheet Rev 2.00. This commercial-grade rating distinguishes it from the ISL6265CIRTZ-T variant, which supports -40°C to +100°C. Junction temperature must remain ≤+125°C under all conditions.
Does the ISL6265CHRTZ-T support AMD SVI2 or only SVI1?
The ISL6265CHRTZ-T supports AMD SVI1 (Serial VID Interface), as confirmed by the FN6976 datasheet referencing "AMD SVI Capable Mobile CPUs" and SVI timing diagrams compliant with pre-SVI2 specifications. It does not implement SVI2 features such as enhanced error reporting or additional command sets defined in later AMD APUs.
Can the ISL6265CHRTZ-T be used in a single-phase-only configuration for VDD0 only?
Yes, the ISL6265CHRTZ-T supports individual single-phase operation for any of its three channels. VDD0 (CORE_0), VDD1 (CORE_1), and VDDNB can be independently enabled or disabled via ENABLE, PWROK, and SVI commands. Unused channels enter high-impedance shutdown with negligible quiescent current.
What is the purpose of the RBIAS pin on the ISL6265CHRTZ-T?
The RBIAS pin on the ISL6265CHRTZ-T connects to a 117kΩ resistor to GND to set internal reference currents for the error amplifiers and modulator. Per FN6976 Page 4, deviation from this value degrades system accuracy and stability; adding capacitance to RBIAS is strictly prohibited as it causes oscillation.
How does the ISL6265CHRTZ-T implement overcurrent protection?
The ISL6265CHRTZ-T implements channel-specific overcurrent protection using differential current-sense inputs: ISP0/ISN0 and ISP1/ISN1 for core outputs (DCR sensing), and OCSET_NB referenced to PHASE_NB for Northbridge (rDS(ON) sensing). Trip thresholds are set by external resistors, and faults trigger immediate PGOOD deassertion and latched shutdown unless auto-recovery is configured.
ISL6265CHRTZ-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- Robust Ripple Regulator™ (R3)
- Package/Case:
- 48-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- Controller, AMD SVI Capable Mobile CPU
- Voltage - Input:
- 5V ~ 24V
- Number of Outputs:
- 3
- Voltage - Output:
- 0.5V ~ 1.55V
- Operating Temperature:
- -10°C ~ 100°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TQFN (6x6)
ISL6265CHRTZ-T FAQ
1.How can I place an order for ISL6265CHRTZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL6265CHRTZ-T 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 ISL6265CHRTZ-T reliable?
The price and inventory of ISL6265CHRTZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL6265CHRTZ-T is usually 5 days.
3.What payment methods are accepted for ISL6265CHRTZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL6265CHRTZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL6265CHRTZ-T?
ISL6265CHRTZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL6265CHRTZ-T 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 ISL6265CHRTZ-T?
For technical support, including ISL6265CHRTZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL6265CHRTZ-T requirements.
6.How does Aetrix verify that ISL6265CHRTZ-T is sourced from the original manufacturer or authorized distributors?
All ISL6265CHRTZ-T 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 ISL6265CHRTZ-T meets industry standards.
7.What is the process for return or replacement of ISL6265CHRTZ-T?
All ISL6265CHRTZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL6265CHRTZ-T, 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 ISL6265CHRTZ-T part is unused and in its original packaging.
Return procedure for ISL6265CHRTZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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