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Renesas ISL69134IRAZ-T
- Part No.:
- ISL69134IRAZ-T
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
ISL69134IRAZ-T.pdf
- Description:
- IC REG CTRLR IMVP8 2OUT 40TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,156
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Product details
Overview
ISL69134IRAZ-T from Renesas Electronics is a digital dual-output, 4-phase configurable PWM controller compliant with Intel IMVP8 specifications. It supports flexible phase allocation (e.g., 3+1, 2+2, or 4+0), delivers up to 1MHz switching, and enables ±0.5% closed-loop system accuracy via differential remote sensing - used in high-performance CPU core and memory rail regulation for Intel-based servers and desktops.
For engineers reviewing the ISL69134IRAZ-T datasheet, ISL69134IRAZ-T pinout, ISL69134IRAZ-T application, or ISL69134IRAZ-T equivalent, key selection considerations include IMVP8 SVID/PMBus v1.3 interface support, synthetic current modulation architecture, diode emulation for light-load efficiency, configurable catastrophic fault protection, and PowerNavigator™ GUI-based configuration of eight stored profiles.
Technical Context
The ISL69134IRAZ-T implements a proprietary digital linear synthetic current modulation scheme with zero-latency current control, enabling precise per-phase current balancing and fast transient response via dual-edge modulation. It supports full IMVP8 SVID command set and PMBus v1.3 at up to 2MHz, with NVM storage for eight independent configurations.
Its fault management includes pulse-by-pulse phase current limiting, total output current protection, input/output OV/UV detection, open-sense detection, black-box fault logging, and a configurable Catastrophic Failure Protection (CFP) flag - all designed for high-reliability server and workstation power delivery systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Control Architecture | Digital linear synthetic current modulation with zero-latency current balance across phases |
| Max Switching Frequency | 1MHz - enables compact, high-density VRM designs with small external inductors |
| Phase Configuration | X+Y ≤ 4 phases (e.g., 3+1, 2+2, 4+0) - supports independent core/memory rail control |
| Voltage Sensing Accuracy | ±0.5% closed-loop system accuracy over load, line, and temperature using differential remote sensing |
| Interface Standard | SMBus/PMBus v1.3 compliant - supports full IMVP8 SVID commands and telemetry reporting |
| Configuration Storage | Non-volatile memory stores up to eight complete device configurations for rapid re-deployment |
| Current Sensing | High-accuracy DCR sensing with integrated temperature compensation - ensures precise OCP and load-line regulation |
Pinout & Package
ISL69134IRAZ-T is housed in a 48-pin QFN package (7mm × 7mm, 0.5mm pitch) with exposed thermal pad. Pin functions are defined per Renesas datasheet FN8691 Rev.1.00.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input supply voltage | Accepts 3V to 25V input for internal LDOs and gate drivers |
| VDDIO | I/O supply | Powers SVID/PMBus interface and logic - requires 3.3V ±5% |
| VSNSx+, VSNSx− | Differential remote sense inputs (x = A/B) | Enables ±0.5% closed-loop accuracy by rejecting PCB IR drop |
| PHASEx[0–3] | Phase driver outputs | Four configurable gate-drive outputs supporting up to 4-phase operation across two rails |
| SVID_DATA / SVID_CLK | IMVP8 SVID bus interface | Direct connection to CPU for dynamic voltage identification and telemetry |
| PMBUS_SDA / PMBUS_SCL | PMBus v1.3 interface | Supports bidirectional configuration, monitoring, and fault logging at up to 2MHz |
| PGOODx | Power-good status outputs (x = A/B) | Open-drain signals indicating regulated output stability per rail |
| CFP | Catastrophic failure protection flag | Configurable active-low output signaling critical fault conditions (e.g., OV, UV, OC) |
Key Features
| Feature | Design Value |
|---|---|
| Auto phase add/drop | Dynamic phase activation/deactivation based on load current - maximizes efficiency across 0–100% load range |
| Diode emulation mode | Disables low-side FET conduction during light load - reduces switching losses and improves light-load efficiency |
| Dual-edge modulation | Simultaneous leading/trailing edge control - cuts transient response time by >30% vs single-edge schemes |
| Black-box fault logging | Stores pre-fault telemetry (voltage, current, temperature, phase state) for root-cause analysis without host intervention |
| DCR temperature compensation | Real-time copper resistance correction using on-die temperature sensor - maintains OCP accuracy across −40°C to +125°C |
Applications
| Intel CPU Core Rail | DDR Memory Rail |
|---|---|
Use Scenario: Regulating VCCIN/VCCIO for 14nm++ and 10nm Intel Xeon and Core processors in 1U/2U servers. IC Role / Device Role / Timing Role: IMVP8-compliant dual-output PWM controller managing up to 4-phase core rail and 2-phase memory rail simultaneously. Use Value: Delivers ±0.5% voltage accuracy and sub-10µs transient response under 50A/µs load steps - meeting Intel VRD13/VRD14 specification margins. | Use Scenario: Powering DDR4/DDR5 memory subsystems in high-end workstations and AI inference servers. IC Role / Device Role / Timing Role: Secondary output configured as 2-phase VRM with DCR current sensing and differential remote sensing. Use Value: Enables tight load-line regulation (≤1mΩ effective resistance) and accurate OCP - preventing memory controller brownouts during burst access. |
| GPU Core Rail | High-End Desktop Platform |
Use Scenario: Delivering stable, high-current power to discrete GPU cores (e.g., NVIDIA A100, AMD MI300) in AI training racks. IC Role / Device Role / Timing Role: Configured as 4+0 single-rail mode driving four ISL99227 smart power stages. Use Value: Supports 60A per phase with synthetic current balancing - eliminating inter-phase current imbalance and thermal hotspots. | Use Scenario: Enabling overclocked CPU operation in enthusiast desktop motherboards with adaptive voltage scaling. IC Role / Device Role / Timing Role: Dual-rail controller with SVID interface to CPU and PMBus interface to BMC for real-time telemetry. Use Value: Eight stored configurations allow BIOS-switchable profiles (e.g., "Silent", "Performance", "OC") without firmware update. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multiphase PWM controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL69144IRAZ-T | 4+2 phase capability (6 total), added support for IMVP9 and VR13/VR14, higher max frequency (1.2MHz) | Required for newer Intel 12th–14th Gen CPUs with VR14 compliance; not backward-compatible with IMVP8-only platforms | Select ISL69144IRAZ-T only when upgrading to VR14-compliant designs requiring 6-phase headroom |
| RTQ2134B-QT | Analog-based dual-output controller; no PMBus/SVID, fixed 3+1 phase assignment, no NVM configuration storage | Targeted at cost-sensitive industrial embedded systems lacking CPU telemetry requirements | Choose RTQ2134B-QT where SVID interface, black-box logging, or field-updatable configurations are unnecessary |
Compared with ISL69134IRAZ-T, ISL69144IRAZ-T adds IMVP9/VR14 support and phase scalability but increases BOM cost and complexity; RTQ2134B-QT offers lower integration and no digital configurability - making ISL69134IRAZ-T the optimal balance of IMVP8 compliance, flexibility, and telemetry for server/desktop VRMs.
Availability
ISL69134IRAZ-T is available at Aetrix Electronics and suitable for high-performance server core rails, DDR memory VRMs, and GPU power delivery systems requiring stable component supply, long-term lifecycle support, and IMVP8 protocol fidelity.
Supply support for ISL69134IRAZ-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 is a global semiconductor leader specializing in microcontrollers, analog, power, and connectivity solutions, with deep expertise in power management ICs for computing infrastructure.
The ISL69134IRAZ-T belongs to Renesas' Digital Multiphase Controller product line, engineered specifically for Intel IMVP8-compliant CPU and memory voltage regulation in data center, enterprise, and high-end client platforms.
FAQ
What is the primary function of the ISL69134IRAZ-T in a power delivery system?
The ISL69134IRAZ-T serves as a digital dual-output, 4-phase configurable PWM controller that regulates CPU core and memory voltages in Intel IMVP8-compliant platforms. It manages gate drive timing, current balancing, and telemetry via SVID/PMBus interfaces. Its synthetic current modulation ensures fast transient response and high accuracy, making ISL69134IRAZ-T essential for stable operation under dynamic processor loads in servers and high-end desktops.
Does the ISL69134IRAZ-T support both SVID and PMBus interfaces simultaneously?
Yes, the ISL69134IRAZ-T supports concurrent SVID and PMBus v1.3 interfaces: SVID_DATA/SVID_CLK connect directly to the CPU for dynamic voltage identification and real-time telemetry, while PMBUS_SDA/PMBUS_SCL enable system-level configuration, monitoring, and fault logging via baseboard management controllers. This dual-interface capability allows ISL69134IRAZ-T to meet both processor-specific and platform-wide power management requirements without compromise.
Can the ISL69134IRAZ-T be configured for single-rail operation?
Yes, the ISL69134IRAZ-T supports flexible phase assignment up to X+Y ≤ 4, including 4+0 (single-rail, 4-phase) mode. This configuration is commonly used for high-current GPU or ASIC core rails. The ISL69134IRAZ-T retains full functionality - including diode emulation, auto phase add/drop, and black-box logging - regardless of whether it operates in dual-rail (e.g., 2+2) or single-rail mode.
What power stages are compatible with the ISL69134IRAZ-T?
The ISL69134IRAZ-T is validated with Renesas ISL99227 60A smart power stages and supports DCR-based current sensing with integrated temperature compensation. It also interoperates with standard DrMOS and discrete MOSFET+driver combinations when configured for external current sensing. Compatibility is confirmed in the ISL69134IRAZ-T datasheet FN8691, ensuring reliable gate drive timing and current reporting for ISL69134IRAZ-T-based VRMs.
How does the ISL69134IRAZ-T handle overcurrent protection?
The ISL69134IRAZ-T implements multi-layer overcurrent protection: per-phase pulse-by-pulse current limiting, average current monitoring for total output current protection, and configurable peak/average thresholds. It also supports open-sense detection and black-box logging to capture pre-fault conditions. These features ensure robust fault containment in ISL69134IRAZ-T-based systems without requiring external circuitry.
ISL69134IRAZ-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 40-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Controller, Intel IMVP8
- 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)
ISL69134IRAZ-T FAQ
1.How can I place an order for ISL69134IRAZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL69134IRAZ-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 ISL69134IRAZ-T reliable?
The price and inventory of ISL69134IRAZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL69134IRAZ-T is usually 5 days.
3.What payment methods are accepted for ISL69134IRAZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL69134IRAZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL69134IRAZ-T?
ISL69134IRAZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL69134IRAZ-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 ISL69134IRAZ-T?
For technical support, including ISL69134IRAZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL69134IRAZ-T requirements.
6.How does Aetrix verify that ISL69134IRAZ-T is sourced from the original manufacturer or authorized distributors?
All ISL69134IRAZ-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 ISL69134IRAZ-T meets industry standards.
7.What is the process for return or replacement of ISL69134IRAZ-T?
All ISL69134IRAZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL69134IRAZ-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 ISL69134IRAZ-T part is unused and in its original packaging.
Return procedure for ISL69134IRAZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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