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Renesas ISL95853IRZ-TR5722
- Part No.:
- ISL95853IRZ-TR5722
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
ISL95853IRZ-TR5722.pdf
- Description:
- MULTI-PHASE CORE CONTROLLER FOR
- Quantity:
- Payment:
- Shipping:
Inventory:4,072
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Product details
Overview
ISL95853IRZ-TR5722 from Renesas (formerly Intersil) is a multiphase PWM regulator IC designed for Intel IMVP8™ CPU core power delivery, featuring two integrated gate drivers and support for 1-, 2-, or 3-phase VR configurations. It delivers precision voltage regulation (±0.5% system accuracy over temperature), DCR/resistor current sensing, remote differential voltage sense, and SVID serial bus interface for CPU communication.
For engineers reviewing the ISL95853IRZ-TR5722 datasheet, ISL95853IRZ-TR5722 pinout, ISL95853IRZ-TR5722 application, or ISL95853IRZ-TR5722 equivalent, key selection considerations include IMVP8 compliance, R3™ modulator transient response, programmable ICCMAX and slew rate, VBOOT startup control, and compatibility with notebook/desktop CPU VR designs requiring adaptive body diode conduction reduction and input power monitoring.
Technical Context
The ISL95853IRZ-TR5722 implements Intersil's Robust Ripple Regulator (R3™) topology, enabling variable switching frequency during load transients and faster transient settling versus conventional fixed-frequency PWM modulators. Its SVID interface supports dynamic voltage identification and telemetry reporting to IMVP8-compliant CPUs.
It integrates dual high-side gate drivers and supports external low-side driver(s) for flexible phase scaling. Current sensing is configurable via lossless DCR with single NTC thermistor compensation or precision shunt resistor, both feeding into a dedicated current monitor amplifier with system input power calculation capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Regulation Standard | Fully compliant with Intel IMVP8™ specification for CPU core VR |
| Phase Configuration | Configurable 1-, 2-, or 3-phase operation using two integrated gate drivers |
| System Voltage Accuracy | ±0.5% over temperature, enabling tight CPU VDD tolerance adherence |
| Current Sensing | Supports DCR sensing with NTC-based temperature compensation or precision resistor sensing |
| Voltage Transition Control | Resistor-programmable slew rate for controlled VID transitions during CPU state changes |
| Startup Control | Programmable VBOOT voltage to ensure proper high-side FET gate drive at power-on |
| Protection Features | Overcurrent protection (OCP), power-good (PGOOD) output, and adaptive body diode conduction time reduction |
Pinout & Package
ISL95853IRZ-TR5722 is housed in a 48-pin QFN package (7mm × 7mm, 0.5mm pitch) with exposed thermal pad. Pin functions are defined per the official ISL95853 datasheet (FN8606), including SVID interface pins (SVID_CLK, SVID_DATA), phase control outputs (PHASE0–PHASE2), current sense inputs (CS+, CS−), remote sense (VSNS+, VSNS−), and configuration resistors (ICCMAX, SLEW).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SVID_CLK / SVID_DATA | SVID serial bus interface | Enables bidirectional CPU-to-VR communication for VID updates, telemetry, and fault reporting |
| PHASE0 / PHASE1 / PHASE2 | Gate driver outputs | Drive high-side FETs; PHASE2 is enabled only in 3-phase mode with external low-side driver |
| CS+ / CS− | Current sense differential inputs | Accept DCR or resistor-based current feedback for accurate load monitoring and OCP |
| VSNS+ / VSNS− | Remote voltage sense inputs | Compensate for IR drop across PCB traces to maintain precise core voltage at CPU pads |
| VBOOT0 / VBOOT1 | Bootstrap supply inputs | Provide charge path for high-side gate drivers; VBOOT0 used in 1-/2-phase, VBOOT1 added in 3-phase |
Key Features
| Feature | Design Value |
|---|---|
| R3™ PWM Modulator | Variable switching frequency during transients improves light-load efficiency and reduces output capacitance requirements |
| Adaptive Body Diode Conduction Reduction | Minimizes shoot-through and conduction losses in synchronous buck stages by dynamically adjusting dead time |
| Differential Remote Sense | Ensures ±0.5% regulation accuracy at CPU die by rejecting trace resistance error |
| Programmable ICCMAX | Resistor-set current limit threshold enables safe operation under peak CPU load conditions |
| System Input Power Monitor | Provides real-time input power telemetry via SVID for thermal and power budget management |
Applications
| Notebook CPU Core VR | Desktop CPU Core VR |
|---|---|
Use Scenario: High-performance ultrabook with Intel Core i7 processor requiring fast VID transitions and thermal-aware power delivery. IC Role / Device Role / Timing Role: Primary multiphase VR controller managing 2-phase core power with SVID CPU handshake and DCR current sensing. Use Value: Enables IMVP8-compliant voltage scaling, <10 µs transient response, and accurate on-die voltage regulation via remote sense. | Use Scenario: ATX motherboard supporting 65W–95W desktop CPUs with dynamic power states and multi-GPU loads. IC Role / Device Role / Timing Role: Configurable 3-phase VR controller coordinating with external low-side drivers and precision shunt current sensing. Use Value: Delivers ±0.5% system accuracy across temperature, programmable slew rate for smooth C-state transitions, and input power telemetry for BIOS-level thermal throttling. |
| Gaming Laptop VRM | Workstation CPU Power |
Use Scenario: 17-inch gaming laptop with overclocked mobile CPU demanding robust overcurrent protection and thermal compensation. IC Role / Device Role / Timing Role: 3-phase VR controller using DCR sensing with NTC thermistor for real-time inductor temperature compensation. Use Value: Maintains stable core voltage under burst loads while preventing thermal runaway via adaptive body diode control and accurate ICCMAX limiting. | Use Scenario: Professional workstation with Xeon E3/E5 mobile derivatives requiring reliable multi-phase power and long-term stability. IC Role / Device Role / Timing Role: 2-phase VR controller with remote sense, programmable VBOOT, and SVID telemetry for firmware-controlled power management. Use Value: Supports BIOS-driven voltage/frequency tuning, differential sense eliminates board layout sensitivity, and R3™ modulation ensures consistent efficiency from idle to full load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multiphase CPU VR controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RT8803AZQW | Supports IMVP9/VR13 but not IMVP8; uses different SVID timing and lacks R3™ modulation | Targeted at newer CPU generations; requires updated BIOS and layout adjustments | Not suitable for IMVP8 systems without firmware and hardware validation |
| ISL95852IRZ | Same R3™ architecture and pinout, but supports only 2-phase (no PHASE2 output) and lacks VBOOT1 | Designed for lower-power CPUs (≤45W TDP); cannot scale to 3-phase configurations | Select ISL95852IRZ only when 2-phase operation suffices and 3-phase headroom is unnecessary |
Compared with RT8803AZQW and ISL95852IRZ, the ISL95853IRZ-TR5722 uniquely combines IMVP8 compliance, 3-phase scalability, R3™ transient optimization, and full SVID telemetry-making it the only validated choice for legacy high-TDP mobile and desktop CPU VR designs requiring backward compatibility and design reuse.
Availability
ISL95853IRZ-TR5722 is available at Aetrix Electronics and suitable for notebook computers, desktop motherboards, and workstation CPU power delivery systems requiring stable component supply, IMVP8 compliance, and long-lifecycle support.
Supply support for ISL95853IRZ-TR5722 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 acquired Intersil in 2017 and maintains its high-performance analog and power management portfolio for computing, industrial, and automotive markets.
The ISL95853IRZ-TR5722 belongs to Renesas' IMVP8-compliant multiphase VR controller product line, engineered specifically for energy-efficient, high-transient-response CPU core power delivery in space-constrained client platforms.
FAQ
What CPU specifications does the ISL95853IRZ-TR5722 support?
The ISL95853IRZ-TR5722 is fully compliant with Intel IMVP8™ specifications for microprocessor core voltage regulation. It supports SVID-based communication, dynamic VID updates, load-line programming, and telemetry reporting required by IMVP8-compliant CPUs. It is not compatible with IMVP9 or VR13 standards, which require different SVID timing and feature sets.
Does the ISL95853IRZ-TR5722 support 3-phase operation out of the box?
Yes, the ISL95853IRZ-TR5722 supports 3-phase operation using its two integrated high-side gate drivers (PHASE0, PHASE1) and one external low-side driver controlled via PHASE2 output. Phase count is resistor-configured at startup, and all three phases are active when the 3-phase enable resistor is installed per the FN8606 datasheet.
How does the R3™ technology in the ISL95853IRZ-TR5722 improve transient response?
The R3™ (Robust Ripple Regulator) technology in the ISL95853IRZ-TR5722 enables variable switching frequency during load transients, reducing output voltage deviation and accelerating settling time. Unlike fixed-frequency PWM, R3™ modulates frequency in real time to match load dynamics-achieving faster recovery with fewer output capacitors and lower overall solution cost.
Can the ISL95853IRZ-TR5722 use both DCR and resistor current sensing simultaneously?
No, the ISL95853IRZ-TR5722 supports either DCR-based or resistor-based current sensing-not both concurrently. Selection is determined by external resistor configuration on the CSSEL pin. DCR mode requires an NTC thermistor for temperature compensation; resistor mode uses a precision shunt with direct Kelvin connections to CS+ and CS−.
What is the purpose of the programmable VBOOT voltage in the ISL95853IRZ-TR5722?
The programmable VBOOT voltage in the ISL95853IRZ-TR5722 sets the initial bootstrap capacitor charge level for high-side gate drivers at startup. This ensures sufficient gate drive margin for MOSFET turn-on under varying input voltage conditions (e.g., 8V–19V), preventing shoot-through and improving reliability during cold-boot or brown-out recovery sequences.
ISL95853IRZ-TR5722 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- Robust Ripple Regulator™ (R3)
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Controller/Converter, Intel IMVP8
- Voltage - Input:
- -
- Number of Outputs:
- 1
- Voltage - Output:
- Multiple
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-QFN (4x4)
ISL95853IRZ-TR5722 FAQ
1.How can I place an order for ISL95853IRZ-TR5722 through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL95853IRZ-TR5722 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 ISL95853IRZ-TR5722 reliable?
The price and inventory of ISL95853IRZ-TR5722 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL95853IRZ-TR5722 is usually 5 days.
3.What payment methods are accepted for ISL95853IRZ-TR5722?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL95853IRZ-TR5722 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL95853IRZ-TR5722?
ISL95853IRZ-TR5722 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL95853IRZ-TR5722 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 ISL95853IRZ-TR5722?
For technical support, including ISL95853IRZ-TR5722 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL95853IRZ-TR5722 requirements.
6.How does Aetrix verify that ISL95853IRZ-TR5722 is sourced from the original manufacturer or authorized distributors?
All ISL95853IRZ-TR5722 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 ISL95853IRZ-TR5722 meets industry standards.
7.What is the process for return or replacement of ISL95853IRZ-TR5722?
All ISL95853IRZ-TR5722 units undergo pre-shipment inspection (PSI). If there is an issue with ISL95853IRZ-TR5722, 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 ISL95853IRZ-TR5722 part is unused and in its original packaging.
Return procedure for ISL95853IRZ-TR5722:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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