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Renesas ISL99360HRZ-T
- Part No.:
- ISL99360HRZ-T
- Manufacturer:
- Renesas
- Category:
- Full Half-Bridge (H Bridge) Drivers
- Package:
- -
- Datasheet:
-
ISL99360HRZ-T.pdf
- Description:
- SMART POWER STAGE GEN2 (SPS) MOD
- Quantity:
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Inventory:1,257
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Product details
Overview
ISL99360HRZ-T from Renesas Electronics is a Smart Power Stage (SPS) IC designed for high-efficiency multiphase DC/DC conversion in CPU/GPU VRMs, featuring integrated ±3% accurate current monitoring (IMON), 8mV/°C temperature sensing with OT flag, 60A DC output capability, and tri-state 3.3V-compatible PWM input - deployed in server core voltage regulation.
For engineers reviewing the ISL99360HRZ-T datasheet, ISL99360HRZ-T pinout, ISL99360HRZ-T application, or ISL99360HRZ-T equivalent, key selection considerations include downslope current sensing architecture, open-drain FAULT# reporting, dedicated LGCTRL for low-side FET control, and compatibility with ISL68xxx/69xxx digital multiphase controllers.
Technical Context
The ISL99360HRZ-T implements a synchronous buck power stage with integrated high- and low-side MOSFETs, gate drivers, and analog monitors. It uses downslope current sensing to eliminate DCR-based networks and supports up to 1.25MHz switching frequency with shoot-through protection and thermal foldback.
Its tri-state PWM interface enables robust operation during controller fault or startup sequences, while the REFIN input allows precise IMON calibration. Fault detection includes high-side FET short, overcurrent, overtemperature (with OT flag), and VIN/VCC UVLO - all reported via open-drain FAULT#.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | +3.0V to +16V - supports 12V input rails common in server VRMs and graphics cards. |
| Continuous Output Current | 60A DC - enables single-phase support for high-current CPU/GPU core rails. |
| Current Monitor Accuracy | ±3% IMON - enables precise phase current balancing and dynamic current sharing in multiphase systems. |
| Temperature Monitor Slope | 8mV/°C with OT flag - provides linear thermal feedback and discrete overtemperature latch for system-level thermal management. |
| PWM Input Compatibility | 3.3V tri-state - ensures interoperability with Renesas ISL68xxx/69xxx digital controllers without level-shifting. |
| Switching Frequency Max | 1.25MHz - supports high-frequency operation to reduce output filter size and improve transient response. |
| Fault Reporting | Open-drain FAULT# - simplifies controller handshake and enables automatic disable during startup or fault conditions. |
Pinout & Package
ISL99360HRZ-T is housed in a thermally enhanced 32-lead 5mm × 5mm PQFN package with exposed thermal pad (Renesas package code HRZ), optimized for high-power density and low thermal resistance in multilayer PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | High-side drain supply input | Connects to main input rail (e.g., +12V); powers internal high-side FET and driver circuitry. |
| SW | Switch node | Drives external inductor; carries high dv/dt switching waveform and must be minimized in loop area. |
| LGCTRL | Low-side FET gate control input | Enables independent optimization of low-side timing for light-load efficiency and ZVS operation. |
| PWM | Tri-state PWM input | Accepts 3.3V logic-level PWM from controller; high-impedance state disables internal drivers during fault. |
| IMON | Current monitor output | Analog voltage proportional to inductor current (±3% accuracy); fed to controller for current-loop feedback. |
| TMON | Temperature monitor output | Analog voltage (8mV/°C) with OT flag assertion at threshold; used for thermal derating or shutdown. |
| FAULT# | Open-drain fault indicator | Asserts low on UVLO, overcurrent, overtemperature, or HS short; pulls down to disable controller. |
| REFIN | Reference input for IMON calibration | Allows external precision reference to correct gain/offset errors in current sensing path. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated downslope current sensing | Eliminates DCR sense resistor and thermal compensation network, reducing BOM count and layout sensitivity. |
| ±3% accurate IMON with REFIN | Enables precise per-phase current reporting for digital multiphase controllers without external calibration components. |
| 8mV/°C TMON with OT flag | Provides linear thermal feedback and discrete overtemperature event signaling for coordinated system-level thermal management. |
| Dedicated LGCTRL pin | Allows independent control of low-side FET turn-on timing to optimize light-load efficiency and reduce body diode conduction loss. |
| Comprehensive fault protection suite | Covers HS short, overcurrent, overtemperature, and VIN/VCC UVLO - all reported via single FAULT# pin to simplify controller interface. |
Applications
| Server Core VRM | GPU Voltage Regulator |
|---|---|
Use Scenario: High-density 12V-input VRM supplying core voltage to dual-socket Xeon processors in cloud data centers. IC Role / Device Role / Timing Role: Smart Power Stage delivering 60A per phase with real-time current/temperature telemetry to ISL69269 controller. Use Value: Enables dynamic phase shedding and current-balancing across 8+ phases while maintaining ±3% current accuracy under load transients. | Use Scenario: Compact, high-efficiency VR for NVIDIA A100 GPU memory and core rails in AI acceleration servers. IC Role / Device Role / Timing Role: Integrated SPS providing downslope current sensing and thermal monitoring for fast-response POL regulation. Use Value: Reduces need for external current-sense resistors and thermal sensors, shrinking VR footprint by >25% versus discrete solutions. |
| Networking ASIC Supply | Gaming Console SoC Regulation |
Use Scenario: High-frequency VR for 7nm/5nm networking ASICs requiring tight voltage tolerance and fast transient response. IC Role / Device Role / Timing Role: Multiphase SPS operating at 1.25MHz with IMON feedback to ISL68228 controller for adaptive droop control. Use Value: Achieves sub-100ns load-step response while maintaining thermal visibility via TMON for ASIC junction temperature tracking. | Use Scenario: High-efficiency, low-noise core supply for AMD Zen-based SoC in next-gen video game consoles. IC Role / Device Role / Timing Role: Single-phase SPS with LGCTRL-optimized light-load operation and FAULT#-driven safety shutdown. Use Value: Delivers >92% efficiency at 10A load and eliminates audible coil whine through controlled low-side timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Smart Power Stage applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL99360BHRZ-T | 5.0V-compatible tri-state PWM input (vs. 3.3V in ISL99360HRZ-T); identical current/temp monitoring, package, and protection features. | Targeted for use with ISL6617A phase doubler instead of ISL68xxx/69xxx controllers. | Select ISL99360BHRZ-T only when paired with 5V PWM controllers; not interchangeable without level-shifting or firmware update. |
| MP87653GQH-P | Monolithic 60A SPS with integrated inductor; lacks REFIN input and OT flag; ±5% IMON accuracy; 1.0MHz max switching frequency. | Designed for space-constrained POL applications where board area is more critical than telemetry fidelity. | Choose MP87653GQH-P for ultra-compact designs accepting reduced current accuracy and no discrete overtemperature flag. |
Compared with ISL99360HRZ-T, ISL99360BHRZ-T offers identical performance except PWM voltage compatibility - making it a direct alternative only in 5V-controller systems - while MP87653GQH-P trades telemetry precision and flexibility for integrated magnetics, limiting its use in high-fidelity multiphase VRMs.
Availability
ISL99360HRZ-T is available at Aetrix Electronics and suitable for server VRMs, GPU voltage regulators, and high-density POL DC/DC converters requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for ISL99360HRZ-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 connectivity solutions for automotive, industrial, and datacenter applications.
The ISL99360HRZ-T belongs to Renesas' Smart Power Stage product line, engineered specifically for high-efficiency, digitally controlled multiphase VRMs in AI accelerators, cloud servers, and high-performance computing platforms.
FAQ
What is the maximum continuous output current rating for the ISL99360HRZ-T?
The ISL99360HRZ-T is rated for 60A continuous DC output current under specified thermal conditions (TA ≤ 70°C, 4-layer PCB with 2oz copper). This rating assumes proper heatsinking via the exposed thermal pad and adherence to recommended layout guidelines in the datasheet. Derating applies above ambient temperatures or with reduced airflow. The ISL99360HRZ-T maintains this current capability while delivering ±3% IMON accuracy and full fault protection coverage.
Does the ISL99360HRZ-T require an external current-sense resistor?
No, the ISL99360HRZ-T uses integrated downslope current sensing and does not require an external DCR sense resistor or associated compensation network. Its ±3% accurate IMON output is derived from internal MOSFET RDS(on) monitoring and calibrated via the REFIN input. This eliminates layout sensitivity, thermal drift errors, and BOM cost associated with discrete sensing - a key differentiator of the ISL99360HRZ-T in high-reliability VRM designs.
How does the FAULT# pin function in the ISL99360HRZ-T?
The FAULT# pin on the ISL99360HRZ-T is an open-drain output that asserts low during UVLO, high-side FET short, overcurrent, or overtemperature events. It can directly interface with the enable/disable input of compatible Renesas controllers (e.g., ISL68228) to halt PWM generation during faults or startup. The ISL99360HRZ-T holds FAULT# low until the fault condition clears and internal reset occurs - ensuring safe recovery before resuming operation.
What is the purpose of the LGCTRL pin on the ISL99360HRZ-T?
The LGCTRL pin on the ISL99360HRZ-T provides independent control of the low-side FET gate drive timing, enabling optimization of light-load efficiency and reduction of body diode conduction loss. By adjusting LGCTRL timing, designers can implement controlled zero-voltage switching (ZVS) or diode emulation modes. This feature is unique to the ISL99360HRZ-T among Renesas SPS offerings and directly improves efficiency below 20% load without requiring controller firmware changes.
Is the ISL99360HRZ-T RoHS compliant and what exemption applies?
Yes, the ISL99360HRZ-T is RoHS compliant and qualifies under Exemption 7a (cadmium in electrical contacts) and Exemption 32 (lead in high-melting-temperature type solders). It uses lead-free terminations and meets JEDEC J-STD-020 moisture sensitivity level 3 (MSL3) requirements. The 32-lead 5x5 PQFN package (HRZ) contains no intentionally added halogenated flame retardants and complies with Renesas' green manufacturing standards.
ISL99360HRZ-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- -
- Applications:
- -
- Interface:
- -
- Load Type:
- -
- Technology:
- -
- Rds On (Typ):
- -
- Current - Output / Channel:
- -
- Current - Peak Output:
- -
- Voltage - Supply:
- -
- Voltage - Load:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Fault Protection:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
ISL99360HRZ-T FAQ
1.How can I place an order for ISL99360HRZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL99360HRZ-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 ISL99360HRZ-T reliable?
The price and inventory of ISL99360HRZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL99360HRZ-T is usually 5 days.
3.What payment methods are accepted for ISL99360HRZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL99360HRZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL99360HRZ-T?
ISL99360HRZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL99360HRZ-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 ISL99360HRZ-T?
For technical support, including ISL99360HRZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL99360HRZ-T requirements.
6.How does Aetrix verify that ISL99360HRZ-T is sourced from the original manufacturer or authorized distributors?
All ISL99360HRZ-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 ISL99360HRZ-T meets industry standards.
7.What is the process for return or replacement of ISL99360HRZ-T?
All ISL99360HRZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL99360HRZ-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 ISL99360HRZ-T part is unused and in its original packaging.
Return procedure for ISL99360HRZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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