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Renesas ISL69124IRAZ
- Part No.:
- ISL69124IRAZ
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
ISL69124IRAZ.pdf
- Description:
- IC REG CTRLR INTEL 2OUT 40TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,058
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Product details
Overview
ISL69124IRAZ from Renesas Electronics is a digital dual-output, 4-phase configurable VR13 PWM controller for Intel microprocessor core and memory rails. It supports flexible phase allocation (e.g., 3+1 or 2+2), operates up to 1 MHz, delivers ±0.5% closed-loop system accuracy via differential remote sensing, and implements zero-latency synthetic current modulation for high-frequency current balance.
For engineers reviewing the ISL69124IRAZ datasheet, ISL69124IRAZ pinout, ISL69124IRAZ application, or ISL69124IRAZ equivalent, key selection considerations include VR13 compliance, PMBus v1.3/SVID interface support, auto phase add/drop behavior, diode emulation for light-load efficiency, and black box fault recording capability.
Technical Context
The ISL69124IRAZ employs a proprietary digital linear synthetic current modulation scheme-not traditional hysteretic or average-current-mode control-enabling zero-latency current balancing across phases and dual-edge modulation for sub-100 ns transient response. It natively supports Intel VR13 SVID protocol and PMBus v1.3 at up to 2 MHz for configuration and telemetry.
Phase assignment is fully configurable (X+Y ≤ 4), with independent output control, DCR-based or smart power stage (e.g., ISL99227) current sensing, and integrated temperature compensation. Fault management includes pulse-by-pulse phase current limiting, total output current protection, and configurable Catastrophic Failure Protection (CFP) flag output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Configuration | Dual output (X and Y), X+Y ≤ 4 total phases (e.g., 3+1, 2+2, 4+0) |
| Max Switching Frequency | 1 MHz - enables compact magnetics and high-density board layout |
| Voltage Sensing Accuracy | ±0.5% over load, line, and temperature using differential remote sense |
| Interface Protocol | PMBus v1.3 and Intel SVID - supports full VR13 command set and telemetry reporting |
| Current Sensing Method | DCR sense with integrated temperature compensation or external smart power stage (e.g., ISL99227) |
| Fault Recording | Black box fault logging - captures pre-fault telemetry for root-cause analysis |
| Config Storage | On-chip NVM stores up to 8 complete configurations for rapid re-deployment |
Pinout & Package
ISL69124IRAZ is housed in a 40-pin QFN package (6 mm × 6 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per the official Renesas ISL69124 datasheet (FN8673 Rev. 1.00).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Primary power input | Supplies internal LDOs and gate drivers; requires local 10 µF ceramic bypass |
| VDDIO | I/O supply | 3.3 V rail for SMBus/PMBus and SVID logic interface |
| SCL/SCL1 | PMBus clock | Supports up to 2 MHz operation; pulled up externally to VDDIO |
| SDA/SDA1 | PMBus data | Open-drain bidirectional bus line; requires external pull-up |
| SVID_CLK/SVID_DATA | Intel SVID interface | Direct connection to CPU SVID bus; no level-shifting required |
| PHASE0–PHASE3 | Phase enable outputs | Active-high signals driving external gate drivers or smart power stages |
| VSNSP/VSNSN | Differential voltage sense +/− | Connects directly to load point for ±0.5% regulation accuracy |
| ISENP/ISENN | Differential current sense +/− | Supports DCR sensing or smart power stage current monitor feedback |
| PGOOD | Power-good indicator | Open-drain output asserting after soft-start and voltage regulation validation |
| CFP | Catastrophic failure flag | Configurable active-low output signaling critical fault (e.g., OV, UV, OCP) |
Key Features
| Feature | Design Value |
|---|---|
| Dual-edge modulation | Reduces output voltage deviation during load transients by enabling faster duty-cycle adjustment per switching cycle |
| Auto phase add/drop | Maintains >90% efficiency across 5–100% load range by dynamically enabling/disabling phases based on real-time current demand |
| Diode emulation mode | Disables low-side FET conduction during light load to eliminate reverse recovery losses and improve efficiency below 10% load |
| Synthetic current control | Eliminates need for physical current-sense resistors while achieving <1% inter-phase current imbalance at 500 kHz |
| Configurable CFP flag | Allows system-level fault escalation (e.g., processor reset or shutdown) upon detection of input OV, output UV, or catastrophic OCP event |
Applications
| Server Core Rail | Graphics Memory Rail |
|---|---|
Use Scenario: High-performance x86 server CPU requiring dynamic voltage identification (DVID) and tight transient regulation under multi-core turbo boost. IC Role / Device Role / Timing Role: Primary VR13-compliant PWM controller managing up to 4 phases for core voltage (VCCIN), with SVID interface to CPU. Use Value: Achieves <5 mV undershoot during 50 A/µs load step via dual-edge modulation and synthetic current balancing. | Use Scenario: GDDR6 memory subsystem in AI accelerator card needing stable 1.35 V rail with fast transient response to bursty memory access patterns. IC Role / Device Role / Timing Role: Secondary VR13 output configured as 2-phase controller for memory I/O voltage (VDDQ), synchronized to core rail timing. Use Value: Delivers ±0.5% regulation accuracy across –40°C to +105°C using differential remote sensing and DCR temperature compensation. |
| Data Center SSD Controller Rail | High-Density Networking ASIC Rail |
Use Scenario: NVMe SSD controller SoC requiring tightly regulated 0.85 V core rail with minimal footprint and robust fault coverage. IC Role / Device Role / Timing Role: Single-output 4-phase configuration (4+0) delivering high current density with black box fault logging for field reliability analysis. Use Value: Enables >92% peak efficiency and records pre-fault telemetry (voltage, current, temperature) for failure mode analysis. | Use Scenario: 400G Ethernet switch ASIC demanding low-noise, high-accuracy 0.75 V core supply with PMBus telemetry for thermal-aware power management. IC Role / Device Role / Timing Role: Dual-output controller operating 2+2 phase split to isolate noise-sensitive SerDes supplies from digital logic rails. Use Value: Supports real-time margining, voltage sequencing, and thermal derating via PowerNavigator™-configured PMBus commands. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar VR13-compliant multiphase controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL69134IRAZ | 6-phase capable (X+Y ≤ 6), adds VR13.0 HV mode and enhanced telemetry resolution | Required for CPUs supporting >256 A core current or HV mode DVID sequences | Select ISL69134IRAZ only when phase count >4 or HV mode compliance is mandatory |
| RT8803AGQW | Analog-based 4-phase controller; no PMBus, SVID-only interface; no black box logging | Lacks digital configurability and fault diagnostics; suited for cost-sensitive, non-telemetry designs | Choose RT8803AGQW where firmware integration and field-reconfigurability are not required |
Compared with ISL69124IRAZ, the ISL69134IRAZ extends phase capacity and VR13.0 support but increases BOM cost and layout complexity, while the RT8803AGQW sacrifices digital diagnostics and tuning flexibility for analog simplicity and lower unit cost.
Availability
ISL69124IRAZ is available at Aetrix Electronics and suitable for high-performance server core rails, graphics memory rails, and data center SSD controller applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for ISL69124IRAZ 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 is a global semiconductor manufacturer headquartered in Japan, specializing in microcontrollers, analog power devices, and interface solutions for industrial, automotive, and infrastructure markets.
The ISL69124IRAZ belongs to Renesas' digital multiphase controller product line, designed specifically to meet Intel VR13 specifications for high-efficiency, high-accuracy CPU and memory voltage regulation in servers and high-end computing platforms.
FAQ
What is the maximum phase count supported by the ISL69124IRAZ?
The ISL69124IRAZ supports up to four total phases across its dual outputs, with flexible allocation such as 3+1, 2+2, or 4+0 configurations. This constraint (X+Y ≤ 4) is fixed in hardware and cannot be exceeded. Each phase output drives an external gate driver or smart power stage, and phase enable signals (PHASE0–PHASE3) are individually controllable via the ISL69124IRAZ's digital engine.
Does the ISL69124IRAZ support both PMBus and SVID interfaces simultaneously?
Yes, the ISL69124IRAZ supports concurrent PMBus v1.3 and Intel SVID interfaces. SVID signals (SVID_CLK, SVID_DATA) connect directly to the CPU for dynamic voltage scaling and telemetry, while PMBus (SCL1/SDA1) provides full configuration, margining, and monitoring access via PowerNavigator™ software. Both interfaces operate independently and may be used in parallel without conflict.
How does the ISL69124IRAZ achieve ±0.5% voltage regulation accuracy?
The ISL69124IRAZ achieves ±0.5% closed-loop system accuracy through differential remote voltage sensing (VSNSP/VSNSN), precision internal DACs, and real-time temperature-compensated DCR current sensing. This accuracy is guaranteed over full operating conditions: –40°C to +105°C ambient, 4.5–24 V input, and 0–100% load range - verified per FN8673 Rev. 1.00 test data.
Can the ISL69124IRAZ be used without Renesas PowerNavigator™ software?
Yes, the ISL69124IRAZ can operate with factory-default settings or user-programmed configurations stored in on-chip NVM, eliminating dependency on PowerNavigator™ during runtime. However, PowerNavigator™ is required for initial configuration, telemetry visualization, black box log extraction, and advanced features like DVID tuning or fault flag customization.
What fault protection features are implemented in the ISL69124IRAZ?
The ISL69124IRAZ integrates comprehensive fault protection including pulse-by-pulse phase current limiting, total output current protection, input/output overvoltage and undervoltage detection, open voltage sense detection, and configurable Catastrophic Failure Protection (CFP) flag assertion. All faults trigger black box logging with timestamped pre-fault telemetry, enabling post-event diagnostics without external instrumentation.
ISL69124IRAZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 40-WFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Applications:
- Controller, Intel VR13
- Voltage - Input:
- 4.5V ~ 25V
- Number of Outputs:
- 2
- Voltage - Output:
- 0V ~ 3.05V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 40-TQFN (5x5)
ISL69124IRAZ FAQ
1.How can I place an order for ISL69124IRAZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL69124IRAZ 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 ISL69124IRAZ reliable?
The price and inventory of ISL69124IRAZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL69124IRAZ is usually 5 days.
3.What payment methods are accepted for ISL69124IRAZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL69124IRAZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL69124IRAZ?
ISL69124IRAZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL69124IRAZ 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 ISL69124IRAZ?
For technical support, including ISL69124IRAZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL69124IRAZ requirements.
6.How does Aetrix verify that ISL69124IRAZ is sourced from the original manufacturer or authorized distributors?
All ISL69124IRAZ 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 ISL69124IRAZ meets industry standards.
7.What is the process for return or replacement of ISL69124IRAZ?
All ISL69124IRAZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL69124IRAZ, 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 ISL69124IRAZ part is unused and in its original packaging.
Return procedure for ISL69124IRAZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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