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Renesas ISL6363CRTZ-T
- Part No.:
- ISL6363CRTZ-T
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
ISL6363CRTZ-T.pdf
- Description:
- IC REG CTRLR VR12 2OUT 48TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,306
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Product details
Overview
ISL6363CRTZ-T from Renesas (formerly Intersil) is a dual-output multiphase PWM controller for VR12™ desktop CPU core and graphics power supplies. It integrates three gate drivers, supports 4/3/2/1-phase VR1 and 1-phase VR2, delivers 0.5% system voltage accuracy over temperature, enables DCR current sensing with single NTC compensation, and operates with SVID serial bus compliance. It is used in high-performance desktop motherboard VRMs.
For engineers reviewing the ISL6363CRTZ-T datasheet, ISL6363CRTZ-T pinout, ISL6363CRTZ-T application, or ISL6363CRTZ-T equivalent, this page provides verified technical context, validated pin functions, confirmed VR1/VR2 phase configuration limits, real-world transient response metrics (e.g., 65A step load settling in <2µs), and accurate alternative part comparisons - all derived from FN6898 Rev 1.00 and official Renesas documentation.
Technical Context
The ISL6363CRTZ-T implements Intersil's patented R3 (Robust Ripple Regulator) modulator architecture, combining fixed-frequency PWM stability with hysteretic-like transient responsiveness. It uses a master-slave timing structure: a master clock circuit generates phase-aligned signals (90°/120°/180°/0° depending on VR1 phase count), while each slave circuit independently controls its PWM pulse width via synthesized ripple capacitor voltage (Vcrs) tracking.
Both VR1 and VR2 support differential remote voltage sensing, programmable IMAX/TMAX via resistor-to-GND connections, lossless DCR current sensing with adaptive body diode conduction time reduction, and PS2-mode high-frequency load transient compensation. The SVID interface enables dynamic VID updates, thermal monitoring (VR_HOT#), and coordinated power-good signaling (PGOOD/PGOODG).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Configuration | VR1: configurable 4/3/2/1-phase; VR2: fixed 1-phase - enables scalable CPU + GPU rail design on single IC |
| System Voltage Accuracy | ±0.5% over temperature (0°C to +70°C) - ensures stable core voltage under thermal stress without recalibration |
| Switching Frequency Range | 200–500 kHz (adjustable via VW/COMPG resistors) - balances efficiency, EMI, and transient response for desktop VRM layouts |
| Current Sensing | Lossless DCR sensing with single NTC thermistor for both VR1/VR2 - eliminates sense-resistor power loss and enables accurate thermal derating |
| SVID Compliance | Full VR12™ specification support including dynamic VID, PS0/PS1/PS2/PS3 modes, and ALERT#/VR_HOT# coordination - required for Intel 3rd–4th gen desktop CPUs |
| Gate Drive Capability | Integrated 3-driver architecture: 2 for VR1 (PHASE1/PHASE2), 1 for VR2 - reduces external component count vs. dual-controller solutions |
| Thermal Protection | Dual independent thermal monitors (NTC/NTCG) with programmable trip/reset thresholds - prevents thermal runaway in multi-rail high-current applications |
Pinout & Package
ISL6363CRTZ-T is housed in a 48-lead 6×6 mm TQFN package (Pb-free, RoHS-compliant) with exposed thermal pad. Pin assignment follows the official FN6898 Rev 1.00 top-view layout and is validated for commercial temperature range (0°C to +70°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pad) | Common ground reference & thermal dissipation path | Must be soldered to large PCB copper pour for thermal management and noise immunity |
| PGOOD / PGOODG | Open-drain power-good indicators for VR1 and VR2 | Require external 680Ω pull-up to +5V; signal active-high after soft-start completion and voltage regulation lock |
| VSEN / RTN / FB / COMP | VR1 remote sensing and error amplifier interface | VSEN+RTN enable Kelvin sensing; FB is inverting input; COMP is output + IMAX/VBOOT programming node |
| ISEN1–ISEN4 / ISUMP / ISUMN | VR1 phase current balancing and droop sensing inputs | Support up to 4-phase operation; ISENx pins monitor individual phase currents for balanced load sharing |
| UGATE1/LGATE1/BOOT1/PHASE1 | VR1 Phase 1 high-side/low-side gate drive interface | Direct connection to external MOSFETs; BOOT1 requires MLCC to PHASE1 for high-side bootstrap supply |
| UGATEG/LGATEG/BOOTG/PHASEG | VR2 gate drive interface | Independent 1-phase driver set; PVCCG must be supplied with +12V and ≥1µF MLCC decoupling |
| SDA/SCLK/ALERT# | SVID serial bus interface | Connects directly to CPU SVID bus; ALERT# asserts on overtemperature or overcurrent fault conditions |
| VR_ON | Global enable input | Active-high logic signal (VIH ≥ 0.7V); initiates synchronized soft-start for both VR1 and VR2 |
Key Features
| Feature | Design Value |
|---|---|
| R3 Modulator Architecture | Delivers faster transient settling (<2µs for 65A step) and variable switching frequency during load transients - improves dynamic regulation beyond fixed-frequency PWM |
| Dual Independent VR Outputs | VR1 (scalable phases) and VR2 (fixed 1-phase) share SVID bus but operate with separate feedback, current sensing, and protection - enables CPU+GPU power delivery with minimal board area |
| PS2 Compensation & High-Frequency Transient Compensation | PSICOMP pin adds type-3 network during PS2/3 mode - increases gain/phase margin for improved stability under rapid VID transitions |
| Adaptive Body Diode Conduction Time Reduction | Reduces shoot-through losses by dynamically shortening low-side MOSFET conduction during light-load discontinuous conduction - improves light-load efficiency |
| Programmable Parameters via Resistors | IMAX, TMAX, VBOOT, switching frequency, and SVID address set by external resistors - eliminates need for EEPROM or digital configuration |
Applications
| Desktop CPU Core VRM | Desktop GPU Core VRM |
|---|---|
Use Scenario: Primary voltage regulator for Intel VR12™-compliant desktop CPUs (e.g., Core i5/i7 3rd–4th gen) requiring precise VID tracking and fast load-step response. IC Role / Device Role / Timing Role: Dual-output multiphase PWM controller managing up to 4-phase CPU rail (VR1) and dedicated 1-phase graphics rail (VR2) with shared SVID interface. Use Value: Enables single-chip solution for dual-rail desktop power, reducing BOM count by ~30% versus discrete controllers while maintaining ±0.5% voltage accuracy. | Use Scenario: Secondary high-current VRM for discrete GPU power on ATX motherboards, supporting dynamic power states (PS0–PS3) and thermal throttling. IC Role / Device Role / Timing Role: VR2 output provides independent 1-phase regulation with dedicated current sensing (ISUMPG/ISUMNG), thermal monitoring (NTCG), and PGOODG signaling. Use Value: Delivers coordinated thermal protection and power-good sequencing between CPU and GPU rails - critical for stable overclocking and multi-GPU configurations. |
| High-Density Motherboard Power | VR12™ Reference Design Platform |
Use Scenario: Space-constrained ATX/mATX motherboard designs where PCB real estate is limited and thermal management is critical. IC Role / Device Role / Timing Role: Integrates three gate drivers, dual error amplifiers, SVID interface, and thermal monitors into one 6×6 mm TQFN - eliminates need for auxiliary ICs. Use Value: Reduces total VRM footprint by >40% vs. two separate controllers; exposed thermal pad enables direct heatsink attachment for sustained 100A+ operation. | Use Scenario: Reference platform validation for VR12™ compliance testing, including load-line accuracy, transient response, and SVID register interoperability. IC Role / Device Role / Timing Role: Fully compliant VR12™ implementation with documented PS0–PS3 behavior, VR_HOT# coordination, and supported SVID registers per Intel specification. Use Value: Accelerates time-to-market for VR12™-certified motherboards by providing pre-validated timing, register mapping, and protection logic per FN6898 Rev 1.00. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multiphase VR controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL6364CRTZ-T | Same pinout, identical VR1/VR2 architecture, but supports VR12.5™ with extended VID range (0.25–1.52V → 0.25–1.65V) and enhanced PS4 mode | Required for newer Intel CPUs (e.g., Haswell Refresh) needing VR12.5™ compliance; not backward-compatible with legacy VR12™ BIOS | Select ISL6364CRTZ-T only when VR12.5™ features are needed; ISL6363CRTZ-T remains optimal for cost-sensitive VR12™ designs |
| IR3567BMTRPBF | 4+1 phase VR12™ controller with integrated MOSFET drivers, but no PSICOMP pin or PS2-mode compensation; uses different SVID register map | Lacks high-frequency transient compensation and PS2-specific stability enhancements - may require additional external compensation components | Choose IR3567BMTRPBF for simplified layout with integrated drivers; prefer ISL6363CRTZ-T when PS2-mode stability and proven transient response are critical |
Compared with ISL6364CRTZ-T and IR3567BMTRPBF, the ISL6363CRTZ-T offers the most mature VR12™ implementation with documented PS2 compensation, validated 65A transient response, and resistor-programmable flexibility - making it the preferred choice for production desktop VRMs targeting Intel 3rd–4th gen platforms.
Availability
ISL6363CRTZ-T is available at Aetrix Electronics and suitable for desktop motherboard VRMs, high-density ATX power delivery systems, and VR12™ reference design platforms requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ISL6363CRTZ-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 Corporation (acquired Intersil in 2017) is a global semiconductor leader specializing in microcontrollers, analog power management, and interface solutions for automotive, industrial, and computing markets.
The ISL6363CRTZ-T belongs to Renesas' VR12™ multiphase controller product line, designed specifically for high-efficiency, high-accuracy CPU/GPU core voltage regulation in desktop computing platforms with strict transient and thermal requirements.
FAQ
What is the operating temperature range for the ISL6363CRTZ-T?
The ISL6363CRTZ-T is rated for commercial temperature operation from 0°C to +70°C, as specified in the FN6898 Rev 1.00 datasheet. Its 48-lead TQFN package includes an exposed thermal pad to support reliable thermal dissipation within this range. The IRTZ variant (ISL6363IRTZ-T) extends operation to -40°C to +85°C, but the CRTZ-T version is optimized for standard desktop motherboard environments where ambient temperatures remain within the commercial range. Always verify PCB layout thermal performance using θJA = 27°C/W.
Does the ISL6363CRTZ-T support both VR1 and VR2 outputs simultaneously?
Yes, the ISL6363CRTZ-T supports simultaneous operation of VR1 (configurable 4/3/2/1-phase) and VR2 (fixed 1-phase) with independent feedback loops, current sensing, and protection circuits. Both outputs share the same SVID serial bus for communication with the CPU, enabling coordinated voltage control and status reporting without requiring separate interfaces. This dual-output capability is fundamental to its role in desktop VR12™ power delivery, allowing single-chip management of CPU core and integrated/discrete GPU rails.
How is the switching frequency programmed on the ISL6363CRTZ-T?
The switching frequency for VR1 is programmed using a resistor between the VW pin and the COMP pin; for VR2, it is set by a resistor between VWG and COMPG. Per FN6898 Rev 1.00 Table 7, a typical 8.06kΩ resistor yields 300 kHz nominal frequency. The adjustable range spans 200–500 kHz, allowing designers to optimize for efficiency (lower fSW), EMI (higher fSW), or transient response (higher fSW). Frequency selection directly impacts gate driver timing, output filter sizing, and thermal performance - all validated in the ISL6363CRTZ-T's electrical specifications.
Can the ISL6363CRTZ-T use DCR current sensing without external resistors?
Yes, the ISL6363CRTZ-T supports lossless DCR current sensing for both VR1 and VR2 using the integrated current-sense amplifier and NTC thermistor network. No external sense resistors are required - instead, the inductor's DCR is measured across ISUMP/ISUMN (VR1) or ISUMPG/ISUMNG (VR2), with temperature compensation applied via NTC/NTCG pins. This method eliminates I²R losses associated with shunt resistors and maintains accuracy across temperature, as confirmed by the ±0.5% system accuracy spec and DCR sensing description in FN6898 Rev 1.00 Section 1.2.
Is the ISL6363CRTZ-T pin-compatible with other ISL636x series devices?
The ISL6363CRTZ-T shares identical pinout and package (48 Ld 6×6 TQFN) with ISL6364CRTZ-T and ISL6367CRTZ-T, as confirmed by Renesas package drawings L48.6x6 and FN6898 pin configuration diagrams. However, functional compatibility is not guaranteed: ISL6364CRTZ-T adds VR12.5™ features and modified register maps, while ISL6367CRTZ-T supports different phase counts and protection thresholds. Direct substitution requires full firmware and hardware validation - the ISL6363CRTZ-T should only be replaced with verified alternatives like ISL6364CRTZ-T when VR12.5™ compliance is explicitly required.
ISL6363CRTZ-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 48-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Controller, Intel VR12
- Voltage - Input:
- 5V ~ 12V
- Number of Outputs:
- 2
- Voltage - Output:
- 0.25V ~ 1.52V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TQFN (6x6)
ISL6363CRTZ-T FAQ
1.How can I place an order for ISL6363CRTZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL6363CRTZ-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 ISL6363CRTZ-T reliable?
The price and inventory of ISL6363CRTZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL6363CRTZ-T is usually 5 days.
3.What payment methods are accepted for ISL6363CRTZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL6363CRTZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL6363CRTZ-T?
ISL6363CRTZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL6363CRTZ-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 ISL6363CRTZ-T?
For technical support, including ISL6363CRTZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL6363CRTZ-T requirements.
6.How does Aetrix verify that ISL6363CRTZ-T is sourced from the original manufacturer or authorized distributors?
All ISL6363CRTZ-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 ISL6363CRTZ-T meets industry standards.
7.What is the process for return or replacement of ISL6363CRTZ-T?
All ISL6363CRTZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL6363CRTZ-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 ISL6363CRTZ-T part is unused and in its original packaging.
Return procedure for ISL6363CRTZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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