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Renesas ISL69137IRAZ-T
- Part No.:
- ISL69137IRAZ-T
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
ISL69137IRAZ-T.pdf
- Description:
- IC REG CTRLR IMVP8 2OUT 48QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,750
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Product details
Overview
ISL69137IRAZ-T from Renesas Electronics is a digital dual-output, 7-phase configurable PWM controller compliant with Intel IMVP8 specifications. It supports flexible phase allocation (e.g., 6+1, 5+2, 3+3, or 7+0), delivers up to 1MHz switching frequency, and features SVID + PMBus v1.3 interfaces for microprocessor core and memory rail regulation in high-performance servers.
For engineers reviewing the ISL69137IRAZ-T datasheet, ISL69137IRAZ-T pinout, ISL69137IRAZ-T application, or ISL69137IRAZ-T equivalent, key selection criteria include IMVP8 compliance, synthetic current modulation architecture, diode emulation for light-load efficiency, differential remote sensing (±0.5% system accuracy), and black-box fault logging capability.
Technical Context
The ISL69137IRAZ-T implements Renesas' proprietary digital linear synthetic current modulation, enabling zero-latency current balancing across phases and eliminating need for external current-sense resistors when used with compatible smart power stages like ISL99227. Its dual-edge modulation scheme enhances transient response beyond conventional PWM controllers.
It integrates full SVID interface for Intel CPU communication and PMBus v1.3 (up to 2MHz) for configuration, telemetry, and fault reporting. Phase add/drop and diode braking are hardware-automated, and eight NVM-stored configurations support multi-rail system tuning without firmware updates.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Configuration | Dual output (X+Y ≤ 7 phases); supports 7+0, 6+1, 5+2, 4+3, 3+3, etc. - enables scalable VR design for CPU core + memory rails |
| Switching Frequency | Up to 1MHz - allows smaller magnetics and higher power density in server VRMs |
| Voltage Sensing Accuracy | ±0.5% closed-loop system accuracy over load/line/temp - achieved via differential remote sensing |
| Interface Support | SVID + PMBus v1.3 (2MHz max) - enables direct Intel CPU handshake and full telemetry/control via PowerNavigator GUI |
| Current Sensing | High-accuracy synthetic current using DCR sense with integrated temperature compensation - ensures precise OCP and load-line regulation |
| Fault Management | Pulse-by-pulse phase limiting, total output current protection, OV/UV, open-sense detect, black-box logging - supports enterprise-grade reliability |
| Configuration Storage | Non-volatile memory stores up to eight complete configurations - eliminates reprogramming during board-level validation or field updates |
Pinout & Package
ISL69137IRAZ-T is housed in a 48-pin QFN package (7mm × 7mm, 0.5mm pitch) with exposed thermal pad. Pin assignment follows Renesas' standard multiphase controller layout optimized for signal integrity and thermal dissipation in high-current VR applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input supply rail | Accepts 3V–5.5V bias supply for internal logic and gate drivers |
| VDDIO | I/O supply | Separate 3.3V domain for SVID/PMBus I/O - isolates noise from analog sections |
| VID[4:0] | SVID command input | 5-bit voltage ID bus for dynamic CPU VOUT programming per IMVP8 spec |
| SCL/SDA | PMBus interface | Standard SMBus-compatible bidirectional lines supporting 2MHz operation |
| PHASE[6:0] | Phase enable outputs | Seven open-drain outputs driving external gate drivers or phase doublers (e.g., ISL6617A) |
| VSNSP/VSNSN | Differential voltage sense | High-impedance inputs for Kelvin-connected remote sensing - enables ±0.5% regulation accuracy |
| ISENP/ISENN | Differential current sense | Supports DCR-based current monitoring with on-chip temperature compensation |
| PGOOD | Power-good indicator | Open-drain output asserting after soft-start and voltage regulation verification |
Key Features
| Feature | Design Value |
|---|---|
| Digital linear synthetic current modulation | Eliminates phase current imbalance without external resistors; enables zero-latency current sharing across all active phases |
| Auto phase add/drop | Maintains peak efficiency across 0–100% load range by dynamically enabling/disabling phases based on real-time current demand |
| Diode braking & emulation | Reduces output overshoot during load transients and improves light-load efficiency by replacing synchronous rectifier conduction with controlled MOSFET turn-off |
| Black-box fault recording | Stores timestamped fault data (e.g., overcurrent event, OV flag, open-sense detection) for post-failure root-cause analysis |
| Catastrophic Failure Protection (CFP) | Configurable hardware flag that asserts on critical faults (e.g., multiple phase failures), triggering system-level shutdown before damage occurs |
Applications
| Server CPU Core Rail | Graphics Processor Memory Rail |
|---|---|
Use Scenario: High-current, low-voltage regulation for Intel Xeon Scalable processors in 2U/4U rack servers requiring strict IMVP8 compliance and fast load-step response. IC Role / Device Role / Timing Role: Primary IMVP8-compliant PWM controller managing up to 6 phases for CPU Vcore and 1 phase for SoC rail. Use Value: Synthetic current modulation ensures sub-500ns transient recovery and ±0.5% voltage accuracy under 50A/µs load steps. | Use Scenario: Dual-rail VR for GDDR6 memory subsystems in AI inference accelerators, where tight voltage tracking between memory and GPU logic is required. IC Role / Device Role / Timing Role: Second output configured as 2-phase regulator for memory VDDQ, synchronized to core rail via shared clock and SVID commands. Use Value: Differential remote sensing maintains <±10mV deviation between memory and logic rails across temperature and load variation. |
| Overclocked Desktop Platform | Data Center SSD Controller Rail |
Use Scenario: Enthusiast desktop motherboards supporting manual overclocking of unlocked Intel Core i9 processors with adaptive voltage/frequency scaling. IC Role / Device Role / Timing Role: Configured in 5+2 mode: five phases for adaptive Vcore, two for VCCIO/VCCSA, all tuned via PowerNavigator GUI. Use Value: Eight stored NVM configurations allow one-click switching between stock, OC, and low-power profiles without BIOS update. | Use Scenario: Compact, high-efficiency VR for NVMe SSD controller SoCs in hyperscale storage arrays where thermal envelope and PCB area are constrained. IC Role / Device Role / Timing Role: Single-output 4-phase configuration (4+0) delivering 1.1V @ 40A with diode emulation enabled for idle power reduction. Use Value: 1MHz operation reduces inductor size by >40% vs. 500kHz alternatives while maintaining <1% output ripple. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multiphase PWM controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL69147IRAZ-T | Same pinout and feature set but adds support for Intel VR13/13.HD specifications and enhanced DVID performance | Required for newer Intel 12th/13th Gen platforms; not backward-compatible with IMVP8-only designs | Select ISL69147IRAZ-T only when upgrading to VR13-compliant systems; ISL69137IRAZ-T remains optimal for IMVP8 infrastructure |
| RT8803AGQW | 6-phase max, no SVID interface, uses analog current-mode control instead of synthetic digital modulation | Targeted at cost-sensitive client platforms; lacks black-box logging, PMBus telemetry, and IMVP8 compliance | Choose RT8803AGQW for non-Intel embedded applications where SVID/PMBus and enterprise reliability are not required |
Compared with ISL69147IRAZ-T and RT8803AGQW, the ISL69137IRAZ-T uniquely balances IMVP8 compliance, synthetic current control, and enterprise-class fault diagnostics - making it the only option qualified for production deployment in Intel-certified server VRMs requiring black-box traceability and ±0.5% regulation.
Availability
ISL69137IRAZ-T is available at Aetrix Electronics and suitable for high-performance servers, AI accelerator boards, and overclocked desktop platforms requiring stable component supply, long-term lifecycle support, and full IMVP8 specification adherence.
Supply support for ISL69137IRAZ-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 management, and timing solutions for industrial, automotive, and computing markets.
The ISL69137IRAZ-T belongs to Renesas' Digital Multiphase PWM Controller product line, engineered specifically for Intel IMVP8-compliant voltage regulator modules in data center and high-end computing applications.
FAQ
What is the maximum supported switching frequency for the ISL69137IRAZ-T?
The ISL69137IRAZ-T supports up to 1MHz switching frequency. This enables compact VRM designs with smaller inductors and capacitors while maintaining stability and efficiency across full load range. Operation at 1MHz is validated with Renesas-recommended external components and ISL99227 smart power stages, and is specified across commercial temperature range (0°C to +70°C).
Does the ISL69137IRAZ-T support Intel IMVP8 SVID interface natively?
Yes, the ISL69137IRAZ-T includes native hardware-level SVID interface support compliant with Intel IMVP8 specification. It accepts 5-bit VID commands, supports DVID transitions, and implements all required SVID timing and handshake protocols without external translation logic. The SVID interface operates independently from the PMBus interface, allowing concurrent CPU voltage control and system telemetry.
Can the ISL69137IRAZ-T be configured for single-output operation?
Yes, the ISL69137IRAZ-T supports 7+0 phase configuration - dedicating all seven phases to a single output. This mode is commonly used for high-current CPU core rails in dual-socket servers. Configuration is performed via PowerNavigator GUI or PMBus commands and stored in on-chip NVM, enabling field-upgradable operation modes without hardware changes.
What current sensing methods does the ISL69137IRAZ-T support?
The ISL69137IRAZ-T supports DCR-based current sensing with integrated copper temperature compensation, eliminating need for external thermistors. It also supports direct current sensing via compatible smart power stages such as ISL99227. The device does not require external current-sense resistors due to its synthetic current modulation architecture, which derives phase current from gate-drive timing and DCR values.
Is the ISL69137IRAZ-T RoHS compliant and lead-free?
Yes, the ISL69137IRAZ-T is Pb-free and RoHS compliant, as confirmed in the official Renesas datasheet (FN8672 Rev 2.00). It meets EU Directive 2011/65/EU requirements and is manufactured using halogen-free molding compound. The "R" suffix in the part number denotes RoHS-compliant packaging, and the device is rated for reflow soldering per JEDEC J-STD-020.
ISL69137IRAZ-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 48-VFQFN 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:
- 48-QFN (6x6)
ISL69137IRAZ-T FAQ
1.How can I place an order for ISL69137IRAZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL69137IRAZ-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 ISL69137IRAZ-T reliable?
The price and inventory of ISL69137IRAZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL69137IRAZ-T is usually 5 days.
3.What payment methods are accepted for ISL69137IRAZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL69137IRAZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL69137IRAZ-T?
ISL69137IRAZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL69137IRAZ-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 ISL69137IRAZ-T?
For technical support, including ISL69137IRAZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL69137IRAZ-T requirements.
6.How does Aetrix verify that ISL69137IRAZ-T is sourced from the original manufacturer or authorized distributors?
All ISL69137IRAZ-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 ISL69137IRAZ-T meets industry standards.
7.What is the process for return or replacement of ISL69137IRAZ-T?
All ISL69137IRAZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL69137IRAZ-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 ISL69137IRAZ-T part is unused and in its original packaging.
Return procedure for ISL69137IRAZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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