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Renesas ISL6374CRTZ-T
- Part No.:
- ISL6374CRTZ-T
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
ISL6374CRTZ-T.pdf
- Description:
- IC REG CTRLR INTEL 1OUT 40TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,335
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Product details
Overview
ISL6374CRTZ-T from Intersil is a 4-phase hybrid digital PWM controller compliant with Intel VR12.5/VR12 specifications, designed to regulate microprocessor core or memory voltage rails. It delivers ±0.5% closed-loop system accuracy over load, line, and temperature; supports up to 2MHz per phase switching; and implements EAPP modulation for fast transient response with reduced output capacitance.
For engineers reviewing the ISL6374CRTZ-T datasheet, ISL6374CRTZ-T pinout, ISL6374CRTZ-T application, or ISL6374CRTZ-T equivalent, key selection criteria include VR12.5/VR12 compliance, auto-phase shedding across PSI1/PSI2/PSI3 modes, differential remote sensing, droop control via IMON/FB, and integrated thermal monitoring with NTC-based compensation.
Technical Context
The ISL6374CRTZ-T operates as a SVID-compliant digital power controller with programmable IMAX, TMAX, BOOT, and ADDRESS OFFSET registers. It uses EAPP modulation-patented by Intersil-to achieve precise pulse positioning and linear control during transients, enabling evenly distributed PWM pulses and improved phase-current balance.
It supports 1–4-phase operation with phase-doubler compatibility, implements diode emulation in PSI2/PSI3 modes, and performs real-time current sensing via dedicated resistor or DCR measurement. Thermal monitoring is achieved through an NTC thermistor on the TM pin, with internal digitization and compensation applied to current sense elements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Phase Count | Configurable 1–4-phase operation with automatic phase shedding across PSI1/PSI2/PSI3 modes for light-load efficiency optimization. |
| Output Accuracy | ±0.5% closed-loop system accuracy over full load, line, and temperature range-ensures tight VOUT regulation for CPU/GPU core rails. |
| Switching Frequency | Up to 2MHz per phase-enables use of smaller magnetics and reduces output ripple without compromising transient response. |
| Current Sensing | Differential sensing via precision resistor or inductor DCR-supports accurate droop programming, channel balancing, and average OCP. |
| Thermal Monitoring | NTC-based temperature sensing on TM pin with internal digitization and integrated compensation-maintains current-sense accuracy across thermal drift. |
| Compliance | Fully compliant with Intel VR12.5 and VR12 specifications-including SerialVID interface, PSI# signaling, and VR12.5 core/VR12 memory support. |
| Protection Features | True Catastrophic Failure Protection (CFP), output open-sense protection, programmable protection disable, and precision IMON overcurrent detection. |
Pinout & Package
ISL6374CRTZ-T is housed in a 40-pin QFN package (6mm × 6mm, 0.5mm pitch) with exposed thermal pad. Pin functions are defined per Intersil FN8326 Rev 0.00.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input supply rail | Accepts 3V to 25V input for internal LDOs and gate drivers-powers controller logic and high-side drivers. |
| VOUT_SENSE+ | Remote voltage sense positive | Differential input for remote sensing-eliminates ground potential difference between controller and load for precise regulation. |
| VOUT_SENSE− | Remote voltage sense negative | Paired with VOUT_SENSE+ to enable Kelvin sensing-improves load regulation and protection accuracy under PCB trace resistance. |
| IMON | Current monitor output | Analog current-sense output reporting real-time load current to processor via external ADC or SVID IOUT register readback. |
| TM | Thermistor input | Connects to NTC thermistor-digitized internally for thermal monitoring and current-sense compensation across temperature. |
| SVID_DATA / SVID_CLK | SVID bus interface | Two-wire serial interface for VID code updates, PSI# coordination, and register access per Intel VR12.5/VR12 spec. |
| EN | Enable input | Threshold-sensitive active-high enable-synchronizes startup timing with other rails in multi-rail systems. |
| PHASE0–PHASE3 | Phase driver outputs | Four independent high/low-side gate drive outputs-support external MOSFETs or phase doublers for scalable 1–4-phase configurations. |
Key Features
| Feature | Design Value |
|---|---|
| EAPP Modulation Scheme | Patented Enhanced Active Pulse Positioning enables faster transient response with fewer bulk capacitors and improved phase-current distribution. |
| Auto Phase Shedding | Reduces active phases to 1 or 2 in PSI1 mode and to single-phase with diode emulation in PSI2/PSI3-cuts magnetic and switching losses at light load. |
| Droop Control Architecture | Uses FB pin current sink to generate precision voltage drop across feedback resistor-implements accurate load-line regulation without external op-amps. |
| Integrated Current Sense Resistors | On-chip programmable resistors eliminate need for external sense resistors in many designs-reduces BOM count and layout complexity. |
| Start-up into Pre-Charged Load | Supports safe initialization when output capacitor is already charged-prevents reverse current flow and ensures controlled soft-start behavior. |
Applications
| Server CPU Voltage Regulator | Laptop GPU Core Rail |
|---|---|
Use Scenario: Regulating 0.8V–1.5V core voltage for dual-socket Xeon Scalable processors in 1U/2U rack servers. IC Role / Device Role / Timing Role: Primary 4-phase VR controller coordinating with SVID host, managing phase shedding, droop, and thermal compensation. Use Value: ±0.5% accuracy and EAPP modulation ensure stable core voltage during rapid DVFS transitions while maintaining VR12.5 compliance. | Use Scenario: Powering discrete NVIDIA or AMD GPU cores in thin-and-light gaming laptops with strict thermal envelope limits. IC Role / Device Role / Timing Role: Adaptive 2–4-phase controller using PSI# signaling to scale phases dynamically during gaming vs. idle states. Use Value: Diode emulation in PSI2 mode reduces light-load quiescent current by >40%, extending battery life without sacrificing transient headroom. |
| AI Accelerator Memory Rail | High-Performance FPGA Core Supply |
Use Scenario: Delivering tightly regulated 0.95V supply to HBM2E or GDDR6X memory stacks on AI training accelerators. IC Role / Device Role / Timing Role: VR12-compliant memory controller supporting dynamic VID updates and precise current reporting via IMON/SVID. Use Value: Differential remote sensing eliminates PCB IR drop error-critical for sub-10mV regulation tolerance across high-current memory interfaces. | Use Scenario: Providing 0.75V–1.2V core voltage to Xilinx Versal or Intel Agilex FPGAs with burst-mode workloads and thermal throttling requirements. IC Role / Device Role / Timing Role: Multi-phase controller with TM-based thermal compensation-adjusts current sense gain in real time to maintain accuracy during FPGA junction temperature swings. Use Value: Integrated NTC digitization and compensation reduce external component count while preserving ±0.5% regulation accuracy from −40°C to +125°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-phase digital PWM controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IR35201MTRPBF | 6-phase capable, supports Intel VR12/VR12.5 but lacks EAPP modulation; uses standard digital PWM with slower transient response. | Targeted at higher-phase-count server VRMs where phase count >4 is required; no diode emulation in ultra-low-power modes. | Choose IR35201MTRPBF when scaling beyond 4 phases or when legacy digital PWM architecture is preferred over EAPP-enhanced dynamics. |
| TPS53689RTAR | TI's 4-phase controller with D-CAP3 modulation; supports VR12.5 but requires external current sense amplifiers and lacks integrated NTC digitization. | Used in cost-sensitive industrial compute platforms where analog current sensing and simpler thermal management are acceptable. | Choose TPS53689RTAR when leveraging TI's ecosystem tools or when external current sense flexibility outweighs ISL6374CRTZ-T's integrated resistor and TM compensation. |
Compared with IR35201MTRPBF and TPS53689RTAR, the ISL6374CRTZ-T uniquely combines EAPP modulation for superior transient response, on-die current sense resistors, and fully integrated NTC-based thermal compensation-making it optimal for space-constrained, high-efficiency VR12.5 core/mem regulators requiring minimal external components.
Availability
ISL6374CRTZ-T is available at Aetrix Electronics and suitable for server CPU voltage regulation, laptop GPU core rails, AI accelerator memory supplies, and high-performance FPGA core supplies requiring stable component supply and long-term design-in support.
Supply support for ISL6374CRTZ-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
Intersil Corporation, now part of Renesas Electronics, designs high-performance analog and power management ICs with focus on precision, efficiency, and integration for computing, industrial, and communications systems.
The ISL6374CRTZ-T belongs to Intersil's EAPP Hybrid Digital PWM Controller product line, engineered specifically for Intel VR12/VR12.5-compliant CPU and memory voltage regulation with emphasis on green efficiency, fast transient response, and minimal external component count.
FAQ
What is the primary compliance standard supported by the ISL6374CRTZ-T?
The ISL6374CRTZ-T is fully compliant with Intel VR12.5 and VR12 specifications, including SerialVID interface, PSI# signaling protocol, and VR12.5 core/VR12 memory voltage regulation requirements. It supports programmable registers such as IMAX, TMAX, BOOT, and ADDRESS OFFSET per VR12.5 spec, and implements all mandatory protection and reporting features required for certified platform integration.
Does the ISL6374CRTZ-T support droop control, and how is it implemented?
Yes, the ISL6374CRTZ-T implements precision droop control by sinking load current from the FB pin to develop a voltage drop across the external feedback resistor. This method enables accurate load-line programming without external op-amps or complex compensation networks. The droop slope is programmable and tightly coupled with current sensing via IMON or DCR, ensuring consistent regulation across load steps.
How does the ISL6374CRTZ-T handle thermal compensation for current sensing?
The ISL6374CRTZ-T uses the TM pin to interface with an external NTC thermistor. The sensed temperature is digitized internally and applied to compensate current sense elements in real time-correcting for thermal drift in both DCR and integrated sense resistors. This maintains ±0.5% system accuracy across −40°C to +125°C without requiring external calibration circuitry.
Can the ISL6374CRTZ-T start up into a pre-charged output capacitor?
Yes, the ISL6374CRTZ-T supports safe start-up into a pre-charged load. Its internal circuitry prevents reverse current flow during initialization and ensures controlled soft-start sequencing-even when the output voltage is already present at power-on. This capability is essential for hot-swap and multi-rail sequencing applications where rail ordering cannot be guaranteed.
What protection features are integrated into the ISL6374CRTZ-T?
The ISL6374CRTZ-T integrates True Catastrophic Failure Protection (CFP), average overcurrent protection, individual phase current limiting, precision IMON overcurrent detection, output voltage open-sense protection, and programmable protection disable. These features operate independently of the SVID interface and provide hardware-level fault coverage for short-circuit, overtemperature, and open-load conditions.
ISL6374CRTZ-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 40-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- Controller, Intel VR12, VR12.5
- Voltage - Input:
- 4.75V ~ 5.25V
- Number of Outputs:
- 1
- Voltage - Output:
- 0.25V ~ 3.04V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 40-TQFN (5x5)
ISL6374CRTZ-T FAQ
1.How can I place an order for ISL6374CRTZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL6374CRTZ-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 ISL6374CRTZ-T reliable?
The price and inventory of ISL6374CRTZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL6374CRTZ-T is usually 5 days.
3.What payment methods are accepted for ISL6374CRTZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL6374CRTZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL6374CRTZ-T?
ISL6374CRTZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL6374CRTZ-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 ISL6374CRTZ-T?
For technical support, including ISL6374CRTZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL6374CRTZ-T requirements.
6.How does Aetrix verify that ISL6374CRTZ-T is sourced from the original manufacturer or authorized distributors?
All ISL6374CRTZ-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 ISL6374CRTZ-T meets industry standards.
7.What is the process for return or replacement of ISL6374CRTZ-T?
All ISL6374CRTZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL6374CRTZ-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 ISL6374CRTZ-T part is unused and in its original packaging.
Return procedure for ISL6374CRTZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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