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Renesas ISL6314CRZ-TS2568
- Part No.:
- ISL6314CRZ-TS2568
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
ISL6314CRZ-TS2568.pdf
- Description:
- SWITCHING CONTROLLER, CURRENT/VO
- Quantity:
- Payment:
- Shipping:
Inventory:12,000
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Product details
Overview
ISL6314CRZ-TS2568 from Renesas Electronics (formerly Intersil) is a single-phase buck PWM controller with integrated high- and low-side MOSFET drivers, designed for Intel VR11 and AMD microprocessor core voltage regulation. It delivers ±0.5% system accuracy over temperature, supports up to 1.0 MHz switching frequency, and features fully differential DCR current sensing for precise load-line programming in desktop and server CPU power delivery.
For engineers reviewing the ISL6314CRZ-TS2568 datasheet, ISL6314CRZ-TS2568 pinout, ISL6314CRZ-TS2568 application, or ISL6314CRZ-TS2568 equivalent, this controller enables compact, cost-optimized single-phase VR solutions with adaptive phase alignment (APA), active pulse positioning (APP), and programmable VID offset - critical for high-di/dt transient response in modern CPU power stages.
Technical Context
The ISL6314CRZ-TS2568 implements a proprietary APP-modulated PWM architecture that allows dynamic pulse positioning within each switching cycle for sub-microsecond response to load transients. Its APA circuitry monitors COMP and APA pin voltage differentials to force channel turn-on during large di/dt events, reducing bulk capacitor count.
It integrates dual bias supplies (VCC for logic, PVCC for gate drivers), supports selectable Intel VR11 or AMD 5-/6-bit DAC tables via SS/VID7 configuration, and provides differential remote sensing (VSEN/RGND) with programmable DC offset via OFS pin - enabling accurate core voltage regulation despite PCB IR drop.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Topology | Single-phase synchronous buck PWM controller with integrated drivers |
| Switching Frequency | Adjustable 80 kHz to 1.0 MHz; typical 250 kHz with 100 kΩ RT resistor |
| System Accuracy | ±0.5% over temperature for 1.0–1.6 V output range; enables tight CPU VDD tolerance compliance |
| VID Compatibility | Intel VR11 (8-bit), AMD 5-bit and 6-bit DAC tables; selected via SS/VID7 pin states |
| Current Sensing | Fully differential, continuous DCR sensing with ISEN+, ISEN−, ISENO pins; supports accurate load-line droop |
| Gate Drive Bias | PVCC = 5 V to 12 V; upper/lower driver sink/source resistances ≤3.0 Ω/1.35 Ω at 12 V |
| Operating Temp | 0°C to +70°C ambient; qualified for commercial-grade CPU power applications |
Pinout & Package
ISL6314CRZ-TS2568 is housed in a 32-lead 5 mm × 5 mm QFN package (Pb-free, exposed thermal pad). The package footprint matches L32.5x5B drawing and supports reflow per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (18) | Bias supply input | +5 V ±5% logic supply; decoupled with 0.1 µF ceramic capacitor |
| PVCC (19) | Power gate driver supply | +5 V to +12 V adjustable gate drive level; decoupled with 1.0 µF ceramic capacitor |
| EN (17) | Enable control input | Threshold-sensitive (~0.85 V) enable; low disables all regulation and drivers |
| FS (3) | Frequency set / droop enable | RT resistor sets fSW; tied to GND enables droop voltage addition to VDIFF |
| VID0–VID7 (25–32,31,30,29,28,27,26) | Digital voltage identification inputs | Decode microprocessor VDD request; support Intel VR11 and AMD 5-/6-bit DAC tables |
| VSEN (12) & RGND (11) | Differential remote sense inputs | Measure true CPU core voltage at point-of-load; compensate for PCB trace resistance |
| ISEN+, ISEN−, ISENO (16,15,14) | DCR current sense interface | Generate droop voltage proportional to output current for load-line programming |
| UGATE (23) & LGATE (21) | High-side & low-side gate drivers | Direct drive for external N-channel MOSFETs; include shoot-through protection |
| BOOT (22) & PHASE (24) | Bootstrap supply & high-side return | Enable floating high-side drive; internal bootstrap diode connects to PVCC |
| OFS (5) | Offset current source | Generates programmable positive/negative DC offset across FB–VDIFF network |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive Phase Alignment (APA) | Forces channel turn-on during high-di/dt transients by comparing filtered COMP and APA pin voltages; reduces required bulk capacitance |
| Active Pulse Positioning (APP) | Enables PWM edge placement anywhere within switching period for faster initial response to voltage droop vs. fixed-frequency PWM |
| Differential Remote Voltage Sensing | Compensates for IR drop between VR and CPU die using VSEN/RGND pair; maintains regulation accuracy at point-of-load |
| Programmable VID Offset | OFS pin sinks or sources precision 49 µA current to generate ±mV-level DC offset on feedback path for fine-tuning VOUT |
| Multi-Processor DAC Support | Hardware-selectable Intel VR11, AMD 5-bit, or AMD 6-bit DAC decoding via SS/VID7 pin configuration - no firmware update needed |
Applications
| Desktop CPU Power Delivery | Server Processor VRM |
|---|---|
Use Scenario: Regulating core voltage for Intel Core i5/i7 or AMD Ryzen processors on ATX motherboards. IC Role / Device Role / Timing Role: Primary PWM controller managing single-phase buck conversion, VID decoding, and transient response. Use Value: Enables compact, low-BOM-count VRMs meeting Intel VR11 spec with <±0.5% system accuracy and fast load-step recovery. | Use Scenario: Powering Xeon or EPYC processor cores in 1U/2U rack servers where thermal density and layout space are constrained. IC Role / Device Role / Timing Role: Single-phase controller driving high-current MOSFETs with DCR sensing and APA-enhanced transient immunity. Use Value: Reduces number of required output capacitors by up to 30% versus conventional controllers, lowering board area and cost. |
| Embedded Computing Platforms | Workstation Graphics Power |
Use Scenario: Providing stable core voltage to embedded CPUs (e.g., Intel Atom or AMD G-Series) in industrial PCs and thin clients. IC Role / Device Role / Timing Role: Precision voltage regulator supporting dynamic VID changes during CPU frequency scaling. Use Value: Maintains ±0.5% accuracy across 0°C to +70°C ambient, ensuring reliable operation without derating. | Use Scenario: Delivering GPU core voltage in high-performance workstations with discrete graphics cards. IC Role / Device Role / Timing Role: High-bandwidth buck controller implementing APP modulation and differential remote sensing for GPU VDD rail. Use Value: Achieves <100 ns non-overlap timing between UGATE/LGATE to prevent shoot-through during aggressive GPU load transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar single-phase buck controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL6312IRZ | Same family, -40°C to +85°C temp grade; higher OCSET trip (93–107 µA vs. 94–106 µA); identical pinout and feature set | Targeted for extended-temp industrial/server use; not rated for commercial temp range | Select ISL6312IRZ only when operating ambient exceeds +70°C |
| RT8802CGQW | Single-phase VR11 controller with integrated drivers; supports 300 kHz–1.2 MHz fSW; lacks APA/APP; uses resistor-based current sense | Lower-cost alternative without adaptive transient enhancement; requires external current-sense resistor | Choose RT8802CGQW for cost-sensitive designs where APA/APP benefits are not required |
Compared with ISL6314CRZ-TS2568, ISL6312IRZ offers extended temperature operation but same functionality, while RT8802CGQW trades APA/APP and DCR sensing for lower BOM cost and simpler layout - making ISL6314CRZ-TS2568 optimal for performance-critical CPU VRMs needing fastest transient response.
Availability
ISL6314CRZ-TS2568 is available at Aetrix Electronics and suitable for desktop motherboard design, server VRM development, and embedded computing platforms requiring stable component supply, RoHS-compliant packaging, and long-term production continuity.
Supply support for ISL6314CRZ-TS2568 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 is a global semiconductor leader formed from the merger of Renesas Technology and NEC Electronics, specializing in microcontrollers, analog, power management, and timing solutions.
The ISL6314CRZ-TS2568 belongs to Renesas' high-performance CPU voltage regulator controller product line, engineered specifically for Intel VR11 and AMD processor core power delivery with emphasis on transient response, accuracy, and integration.
FAQ
What is the maximum supported switching frequency for the ISL6314CRZ-TS2568?
The ISL6314CRZ-TS2568 supports an adjustable switching frequency range from 80 kHz up to 1.0 MHz. The typical frequency is 250 kHz when configured with a 100 kΩ resistor on the FS pin. This wide range allows optimization for efficiency (lower fSW) or size (higher fSW with smaller magnetics) in CPU VRM designs.
Does the ISL6314CRZ-TS2568 support both Intel and AMD microprocessors?
Yes, the ISL6314CRZ-TS2568 natively supports both Intel VR11 and AMD microprocessors. It includes programmable VID decoding for Intel's 8-bit VR11 table and AMD's 5-bit and 6-bit DAC tables, selected via hardware configuration of the SS and VID7 pins - no firmware or register programming is required.
How does the ISL6314CRZ-TS2568 achieve high transient response?
The ISL6314CRZ-TS2568 achieves high transient response through two proprietary techniques: Adaptive Phase Alignment (APA) forces immediate channel turn-on during large di/dt events, and Active Pulse Positioning (APP) enables dynamic PWM edge placement within each switching cycle. Together, they reduce output voltage deviation and minimize required bulk capacitance.
What is the purpose of the OFS pin on the ISL6314CRZ-TS2568?
The OFS pin on the ISL6314CRZ-TS2568 provides a precision current source/sink (≈49 µA) to generate a programmable DC offset voltage across the FB–VDIFF network. Connecting an external resistor from OFS to GND yields positive offset; connecting to VCC yields negative offset - enabling fine-tuning of output voltage beyond VID-set values.
What package type and thermal characteristics does the ISL6314CRZ-TS2568 use?
The ISL6314CRZ-TS2568 uses a 32-lead 5 mm × 5 mm QFN package with exposed thermal pad (L32.5x5B). Its thermal resistance is θJA = 32°C/W and θJC = 3.5°C/W, enabling efficient heat dissipation in high-power CPU VRM applications operating from 0°C to +70°C ambient.
ISL6314CRZ-TS2568 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Applications:
- Controller, Intel VR11, AMD CPU
- Voltage - Input:
- 4.75V ~ 5.25V, 12.6V
- Number of Outputs:
- 1
- Voltage - Output:
- 0.38V ~ 1.6V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-QFN (5x5)
ISL6314CRZ-TS2568 FAQ
1.How can I place an order for ISL6314CRZ-TS2568 through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL6314CRZ-TS2568 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 ISL6314CRZ-TS2568 reliable?
The price and inventory of ISL6314CRZ-TS2568 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL6314CRZ-TS2568 is usually 5 days.
3.What payment methods are accepted for ISL6314CRZ-TS2568?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL6314CRZ-TS2568 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL6314CRZ-TS2568?
ISL6314CRZ-TS2568 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL6314CRZ-TS2568 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 ISL6314CRZ-TS2568?
For technical support, including ISL6314CRZ-TS2568 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL6314CRZ-TS2568 requirements.
6.How does Aetrix verify that ISL6314CRZ-TS2568 is sourced from the original manufacturer or authorized distributors?
All ISL6314CRZ-TS2568 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 ISL6314CRZ-TS2568 meets industry standards.
7.What is the process for return or replacement of ISL6314CRZ-TS2568?
All ISL6314CRZ-TS2568 units undergo pre-shipment inspection (PSI). If there is an issue with ISL6314CRZ-TS2568, 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 ISL6314CRZ-TS2568 part is unused and in its original packaging.
Return procedure for ISL6314CRZ-TS2568:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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