My Inquiry
My Account
Renesas ISL6265CIRTZ
- Part No.:
- ISL6265CIRTZ
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
ISL6265CIRTZ.pdf
- Description:
- IC REG CTRLR AMD 3OUT 48TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,288
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ISL6265CIRTZ 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, 0.8% system accuracy over –40°C to +100°C, and R3 Technology™ modulator for fast transient response in notebook power delivery systems.
For engineers reviewing the ISL6265CIRTZ datasheet, ISL6265CIRTZ pinout, ISL6265CIRTZ application, or ISL6265CIRTZ equivalent, this page provides verified technical context, validated pin functions, confirmed dual-plane/uniplane configuration flexibility, real-world protection features (OVP/UVP/OCP), and precise thermal and switching-frequency specifications aligned with AMD Griffin platform requirements.
Technical Context
The ISL6265CIRTZ implements R3 Technology™ - a variable-frequency Robust Ripple Regulator modulator - enabling faster load-transient response than fixed-frequency buck controllers by dynamically adjusting switching frequency during transients. Its Serial VID (SVI) interface supports high-speed I²C-compatible bidirectional communication with AMD processors for dynamic voltage scaling across all three outputs.
Core outputs support lossless DCR current sensing with differential remote die sensing (VDIFF0/VDIFF1, VSEN0/RTN0, VSEN1/RTN1), while the Northbridge channel uses rDS(ON) sensing. All channels feature phase shedding (with PSI_L), adjustable load line, digital soft-start, and independent overvoltage, undervoltage, and overcurrent protection circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Channels | Three independent channels: two configurable as dual-phase or independent single-phase core regulators (VDD0/VDD1), plus dedicated Northbridge regulator (VDDNB) |
| Output Voltage Range | 0.500V–1.55V in 12.5mV steps via SVI; supports pre-PWROK metal VID and VFIX modes |
| System Accuracy | ±0.8% over –40°C to +100°C ambient for all outputs, enabling tight CPU voltage regulation per AMD mobile specs |
| Switching Frequency | Core: 200–500kHz (typ. 300kHz); NB: 200–500kHz (typ. 300kHz); user-programmable via VWx/FSET_NB resistors |
| Gate Drive Capability | 2A sink/source for UGATE/LGATE pins; integrated shoot-through protection and bootstrap diodes for high-efficiency MOSFET driving |
| Current Sensing | Differential DCR sensing for core channels; rDS(ON) sensing for Northbridge; supports static/dynamic current sharing in uniplane mode |
| Protection Features | Independent OCP, OVP, UVP per channel; PGOOD open-drain status; PSI_L power-saving mode support |
Pinout & Package
ISL6265CIRTZ is housed in a 48-lead 6×6 mm TQFN package (Pb-free, RoHS compliant) with exposed thermal pad. Pin mapping follows the official ISL6265C functional block diagram and pin descriptions in FN6976 Rev 2.00.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OFS/VFIXEN | Voltage offset programming / VFIX enable | Resistor-to-GND sets positive DC offset; pull-up to 3.3V enables VFIX mode; pull-up to 5V disables both functions |
| PGOOD | Power-good status output | Open-drain signal pulled high externally; goes low if any output exceeds OVP/UVP limits or OCP triggers |
| PWROK | System power-good input | Enables SVI interface and I²C protocol when high; determines pre-PWROK VID mode when low |
| SVD, SVC | SVI data/clock interface | Bidirectional serial VID bus compliant with AMD SVI specification for dynamic voltage control |
| ENABLE | Controller enable input | Active-high logic signal; must be asserted before PGOOD can go high per AMD guidelines |
| RBIAS | Reference bias current setting | 117kΩ resistor to GND sets internal reference currents; capacitance must be avoided to prevent instability |
| ISP0/ISN0, ISP1/ISN1 | Differential core current sense inputs | Connect to RC sense network across inductor; enable lossless DCR sensing and channel balancing |
| VSEN0/RTN0, VSEN1/RTN1 | Differential remote core voltage sense | Direct connection to CPU VDD0_FB[H,L] and VDD1_FB[H,L] pins for accurate die-level regulation |
| BOOT0/BOOT1, BOOT_NB | Bootstrap supply for upper gate drives | External ceramic capacitors provide floating bias for UGATE drivers; internal diodes charge from PVCC |
| UGATE0/LGATE0, UGATE1/LGATE1, UGATE_NB/LGATE_NB | MOSFET gate drive outputs | Integrated 2A drivers with shoot-through prevention; connect directly to external high-side/low-side FET gates |
Key Features
| Feature | Design Value |
|---|---|
| R3 Technology™ modulator | Variable-frequency control enables sub-10µs transient response without external compensation components |
| SVI interface compliance | Full AMD Serial VID support including PSI_L, VID-on-the-fly transitions (5–10mV/µs), and pre-PWROK metal VID mode |
| Dual-plane vs. uniplane configurability | Hardware-selectable operation: independent VDD0/VDD1 regulation or interleaved two-phase core output |
| Differential remote sensing | VSEN/RTN pairs eliminate PCB trace IR drop, ensuring ±0.8% regulation accuracy at CPU die under full load |
| Integrated gate drivers | 2A peak drive strength with matched rise/fall times (<8ns) reduces external component count and layout complexity |
| Comprehensive protection suite | Per-channel OCP (programmable via OCSET/OCSET_NB), OVP/UVP, and fault latching with automatic retry or shutdown |
Applications
| AMD Griffin Platform Notebook | Notebook Dual-Plane CPU Power |
|---|---|
Use Scenario: Power delivery for AMD Griffin-series mobile CPUs with separate VDD0 and VDD1 voltage planes. IC Role / Device Role / Timing Role: Primary multi-output VR controller managing independent core rail regulation with SVI-based dynamic voltage scaling. Use Value: Enables precise 0.500V–1.55V core voltage control at ±0.8% accuracy across –40°C to +100°C, meeting AMD mobile CPU spec requirements. |
Use Scenario: High-efficiency dual-core voltage regulation in thin-and-light notebooks requiring minimal BOM count. IC Role / Device Role / Timing Role: Configured as two independent single-phase controllers driving discrete VDD0 and VDD1 power stages. Use Value: Eliminates need for two separate controllers; reduces PCB area and system cost while maintaining full SVI compatibility and protection. |
| Notebook Uniplane Core Power | Mobile CPU Northbridge Regulation |
Use Scenario: Single-core or fused-core CPU designs where VDD0 and VDD1 are shorted on-package. IC Role / Device Role / Timing Role: Operated as a two-phase interleaved buck converter for higher effective ripple frequency and lower output capacitance. Use Value: Doubles effective ripple frequency (e.g., 600kHz from two 300kHz phases), reducing output capacitor count and total solution size. |
Use Scenario: Dedicated voltage regulation for AMD CPU Northbridge (VDDNB) in performance-oriented notebooks. IC Role / Device Role / Timing Role: Independent third-channel controller with rDS(ON) current sensing and programmable 200–500kHz switching. Use Value: Provides isolated, high-accuracy (±0.8%) Northbridge regulation with fast transient response and integrated driver efficiency. |
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 |
|---|---|---|---|
| ISL6265HIRTZ | Same architecture and pinout; rated for –10°C to +100°C ambient (vs. –40°C to +100°C for ISL6265CIRTZ) | Not suitable for extended industrial or automotive temperature environments requiring –40°C startup | Select ISL6265CIRTZ for designs operating below –10°C or requiring full industrial temp grade compliance. |
| RTQ2136B-QA | Single-chip 3-phase controller with integrated power stages; no external MOSFET drivers required; supports Intel IMVP-9, not AMD SVI | Designed for Intel platforms; lacks SVI interface, PSI_L, and AMD-specific remote sensing topology | Only viable for Intel-based notebooks; incompatible with AMD Griffin CPU signaling and voltage positioning requirements. |
Compared with ISL6265HIRTZ, ISL6265CIRTZ extends operational ambient range to –40°C, enabling use in wider environmental conditions without derating. Compared with RTQ2136B-QA, ISL6265CIRTZ retains discrete MOSFET flexibility and AMD-specific SVI protocol support but requires external power stages - critical for legacy AMD platform compatibility and thermal management control.
Availability
ISL6265CIRTZ is available at Aetrix Electronics and suitable for AMD Griffin platform notebooks, dual-plane CPU power systems, and mobile Northbridge voltage regulation requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ISL6265CIRTZ 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 technical and supply chain continuity for legacy Intersil power management ICs, including the ISL6265 series.
The ISL6265CIRTZ belongs to Renesas' high-performance CPU voltage regulator controller product line, designed specifically for AMD mobile processor platforms requiring SVI compliance, multi-rail flexibility, and precision die-level voltage regulation.
FAQ
What is the operating temperature range for ISL6265CIRTZ?
The ISL6265CIRTZ is specified for an ambient operating temperature range of –40°C to +100°C, with junction temperature limited to –40°C to +125°C. This extended industrial-grade range distinguishes it from the ISL6265HIRTZ (–10°C to +100°C) and ensures reliable operation in demanding notebook thermal environments.
Does ISL6265CIRTZ support AMD Serial VID (SVI) interface?
Yes, ISL6265CIRTZ fully supports AMD Serial VID (SVI) interface via dedicated SVD (data) and SVC (clock) pins. It implements SVI Mode, Pre-PWROK Metal VID, and VFIX Mode, enabling dynamic voltage scaling, PSI_L power-saving transitions, and VID-on-the-fly updates at 5–10mV/µs rates per AMD Griffin platform requirements.
How does ISL6265CIRTZ handle current sensing for core outputs?
ISL6265CIRTZ supports lossless inductor DCR current sensing for core outputs using differential ISP0/ISN0 and ISP1/ISN1 inputs. It also allows discrete resistor sensing. The controller uses this data for channel balancing, overcurrent protection, and load-line regulation - eliminating the need for sense resistors and associated power loss.
Can ISL6265CIRTZ be used in both dual-plane and uniplane CPU configurations?
Yes, ISL6265CIRTZ supports hardware-configurable operation: as two independent single-phase controllers for dual-plane CPUs (VDD0/VDD1), or as an interleaved two-phase controller for uniplane CPUs. Configuration is determined by VDD_PLANE_STRAP detection on RTN1 and SVI command sequencing per AMD guidelines.
What protection features are integrated into ISL6265CIRTZ?
ISL6265CIRTZ integrates per-channel overvoltage protection (OVP), undervoltage protection (UVP), and overcurrent protection (OCP). OCP thresholds are programmable via OCSET (core) and OCSET_NB (Northbridge) pins. All protections trigger PGOOD deassertion and support latch-off or auto-retry behavior based on external configuration.
ISL6265CIRTZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- Robust Ripple Regulator™ (R3)
- Package/Case:
- 48-WFQFN Exposed Pad
- Packaging:
- Tube
- 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:
- -40°C ~ 100°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TQFN (6x6)
ISL6265CIRTZ FAQ
1.How can I place an order for ISL6265CIRTZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL6265CIRTZ 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 ISL6265CIRTZ reliable?
The price and inventory of ISL6265CIRTZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL6265CIRTZ is usually 5 days.
3.What payment methods are accepted for ISL6265CIRTZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL6265CIRTZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL6265CIRTZ?
ISL6265CIRTZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL6265CIRTZ 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 ISL6265CIRTZ?
For technical support, including ISL6265CIRTZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL6265CIRTZ requirements.
6.How does Aetrix verify that ISL6265CIRTZ is sourced from the original manufacturer or authorized distributors?
All ISL6265CIRTZ 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 ISL6265CIRTZ meets industry standards.
7.What is the process for return or replacement of ISL6265CIRTZ?
All ISL6265CIRTZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL6265CIRTZ, 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 ISL6265CIRTZ part is unused and in its original packaging.
Return procedure for ISL6265CIRTZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL6265CIRTZ 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…
