My Inquiry
My Account
Renesas ISL95822HRZ
- Part No.:
- ISL95822HRZ
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
ISL95822HRZ.pdf
- Description:
- IC REG CTRLR INTEL 1OUT 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,372
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ISL95822HRZ from Renesas Electronics (formerly Intersil) is a dual-phase PWM voltage regulator IC designed for Intel VR12.5™ and VR12.6™ CPU core power delivery, featuring two integrated gate drivers, SVID serial interface, 0.5% system voltage accuracy over temperature, and R3™ adaptive ripple regulation architecture. It supports 1- or 2-phase configuration, DCR/resistor current sensing, and remote differential voltage sensing for notebook and desktop motherboard VRMs.
For engineers reviewing the ISL95822HRZ datasheet, ISL95822HRZ pinout, ISL95822HRZ application, or ISL95822HRZ equivalent, key selection criteria include VR12.5/VR12.6 compliance, SVID bus timing, programmable ICCMAX and slew rate, R3™ transient response behavior, and dual-gate-driver thermal management in high-density VRM layouts.
Technical Context
The ISL95822HRZ implements Intersil's Robust Ripple Regulator (R3™) technology, enabling variable switching frequency during load transients and faster transient settling versus conventional fixed-frequency PWM modulators. Its SVID interface handles dynamic voltage identification, phase control, and telemetry reporting per Intel VR12.5/VR12.6 specifications.
It integrates two high-side/low-side gate drivers per phase, supports lossless DCR current sensing with single NTC thermistor compensation, and provides programmable VBOOT, ICCMAX, and voltage transition slew rate to meet CPU power state transitions (e.g., C-state entry/exit) without overshoot or undershoot violations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Regulation Standard | Fully compliant with Intel VR12.5™ and VR12.6™ specifications for CPU core voltage sequencing and telemetry. |
| Phase Configuration | Configurable as 1-phase or 2-phase via external resistor selection; enables flexible VRM layout scaling for 15W–65W CPU power ranges. |
| Voltage Accuracy | ±0.5% system accuracy over full temperature range; ensures stable core voltage under thermal stress in thin-client and gaming desktops. |
| Current Sensing | Supports both DCR-based (lossless, NTC-compensated) and precision shunt resistor methods; eliminates need for separate current-sense amplifiers. |
| SVID Interface | 4-wire serial bus (CLK, DATA, ALERT#, RESET#) for bidirectional communication with CPU; enables real-time VID updates and fault reporting. |
| Protection Features | Includes overcurrent protection (OCP), Power-Good output, diode braking, and adaptive body diode conduction time reduction to limit shoot-through losses. |
Pinout & Package
ISL95822HRZ is housed in a 48-pin QFN package (7mm × 7mm, 0.5mm pitch) with exposed thermal pad for enhanced power dissipation in compact VRM designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input power supply rail | Accepts 5V–24V input; powers internal LDOs and gate drivers; requires local bulk and ceramic decoupling. |
| VOUT_SENSE+ | Remote voltage sense positive | Differential input for precise core voltage feedback at CPU pads; rejects PCB IR drop in high-current VRMs. |
| VOUT_SENSE− | Remote voltage sense negative | Paired with VOUT_SENSE+ for Kelvin sensing; improves regulation accuracy under dynamic load steps. |
| SVID_CLK | SVID serial clock | Master-driven clock line (up to 2MHz) synchronizing SVID command transfers between CPU and ISL95822HRZ. |
| SVID_DATA | SVID serial data I/O | Bidirectional data line for VID codes, phase enable/disable, OCP thresholds, and telemetry readbacks. |
| PGOOD | Power-Good status output | Open-drain signal asserted after output stabilizes within ±1% of target; used for CPU reset release and system power sequencing. |
Key Features
| Feature | Design Value |
|---|---|
| R3™ Adaptive Modulation | Variable switching frequency during load transients reduces output voltage deviation and improves settling time vs. fixed-frequency PWM. |
| Programmable ICCMAX | Resistor-set current limit threshold enables precise OCP tuning for different CPU TDPs without firmware changes. |
| Adjustable Slew Rate | Configurable voltage transition rate prevents excessive dI/dt-induced noise during CPU P-state transitions. |
| Diode Braking | Active low-side FET control during light-load discontinuous conduction mode minimizes output overshoot at load release. |
| DCR Temp Compensation | Single NTC thermistor input enables accurate inductor DCR resistance tracking across −10°C to +125°C ambient. |
Applications
| Gaming Desktop VRM | Thin-and-Light Notebook VRM |
|---|---|
Use Scenario: High-TDP CPU (e.g., Intel Core i9) requiring rapid load-step response and tight voltage tolerance under burst workloads. IC Role / Device Role / Timing Role: Dual-phase VR controller managing two synchronous buck stages with coordinated phase interleaving and SVID telemetry. Use Value: R3™ modulation achieves <10µs transient recovery and ±0.5% regulation-critical for maintaining CPU stability during AVX-512 execution. | Use Scenario: Space-constrained ultrabook motherboard needing minimal component count and thermal footprint for Core i5/i7 CPUs. IC Role / Device Role / Timing Role: Configurable 1-phase VR controller with integrated gate drivers and remote sensing to replace discrete driver + controller solutions. Use Value: Single 48-pin QFN replaces ≥3 ICs; DCR sensing eliminates current-sense resistors, saving >12mm² PCB area and reducing BOM cost. |
| Workstation Motherboard VRM | Embedded Computing Platform |
Use Scenario: Multi-core Xeon E3/E5 derivatives in compact workstations requiring robust thermal derating and long-term voltage stability. IC Role / Device Role / Timing Role: 2-phase VR controller with programmable VBOOT and ICCMAX supporting CPU cold-boot and turbo-boost profiles. Use Value: Programmable slew rate and VBOOT prevent inrush current spikes during power-on, extending MOSFET lifetime and improving PSU reliability. | Use Scenario: Fanless industrial PC with extended temperature operation (−40°C to +85°C) and no active cooling for CPU VRM. IC Role / Device Role / Timing Role: VR12.6-compliant controller using NTC-compensated DCR sensing to maintain current accuracy across wide ambient range. Use Value: Single NTC input enables accurate DCR tracking without calibration; ±0.5% voltage accuracy ensures deterministic CPU throttling behavior. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-phase VR controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IR35201MTRPBF | Supports VR12/VR12.5 only; lacks VR12.6 telemetry extensions and R3™ adaptive frequency modulation. | Targeted at legacy platforms; does not support Intel's enhanced SVID commands for VR12.6 dynamic power states. | Select ISL95822HRZ when VR12.6 compliance, faster transient response, or improved light-load efficiency are required. |
| RT8803AZSP | Single-phase only; no dual-phase gate drivers; uses analog VID instead of SVID interface. | Designed for lower-power mobile CPUs (≤35W); incompatible with VR12.5/VR12.6 protocol stack and phase management. | Choose ISL95822HRZ for dual-phase, SVID-based, VR12.5/VR12.6-compliant CPU power delivery in performance-class systems. |
Compared with IR35201MTRPBF and RT8803AZSP, the ISL95822HRZ uniquely delivers VR12.6 compliance, R3™ adaptive modulation for sub-10µs transients, and integrated dual-phase gate drivers-enabling higher power density, tighter voltage regulation, and future-proof SVID feature support in next-gen client platforms.
Availability
ISL95822HRZ is available at Aetrix Electronics and suitable for notebook computers, desktop computers, and workstation motherboards requiring stable component supply, long-lifecycle support, and VR12.5/VR12.6 specification adherence.
Supply support for ISL95822HRZ 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 is a global semiconductor leader delivering trusted embedded design innovation, with origins in Intersil's high-performance analog and power management portfolio.
The ISL95822HRZ belongs to Renesas' CPU voltage regulator controller product line, engineered specifically for Intel VR12.5/VR12.6-compliant core power delivery in client computing platforms demanding high accuracy, fast transient response, and SVID interoperability.
FAQ
What CPU generations and socket types is the ISL95822HRZ validated for?
The ISL95822HRZ is fully validated for Intel 3rd–6th generation Core processors (Ivy Bridge through Skylake) supporting VR12.5 and VR12.6 specifications, including LGA1155, LGA1150, and LGA1151 sockets. It meets all SVID timing, VID code mapping, and telemetry requirements defined in Intel's VR12.5/VR12.6 documentation. The ISL95822HRZ does not support AMD platforms or Intel's newer VR13/VR14 standards.
Does the ISL95822HRZ require external current-sense resistors?
No-the ISL95822HRZ supports lossless DCR current sensing using the inductor's DC resistance, with optional single NTC thermistor compensation for temperature drift. External shunt resistors are optional and only needed if higher absolute current accuracy is required beyond DCR-based sensing. The ISL95822HRZ includes dedicated pins and internal circuitry for both methods, eliminating mandatory external resistors in most notebook and desktop VRM designs.
How does the R3™ technology in ISL95822HRZ improve transient response compared to standard PWM controllers?
R3™ technology in the ISL95822HRZ dynamically adjusts switching frequency during load transients-increasing frequency for faster response to sudden load steps and decreasing it at light loads to improve efficiency. This yields <10µs voltage recovery time and reduced output deviation versus fixed-frequency controllers. The ISL95822HRZ achieves this without external compensation components, directly enhancing CPU stability during AVX or Turbo Boost events.
Can the ISL95822HRZ be configured for single-phase operation, and how is that done?
Yes-the ISL95822HRZ supports both 1-phase and 2-phase configurations via external resistor selection on the PHASE_SEL pin. A grounded resistor configures dual-phase operation; an open or high-impedance connection configures single-phase. This flexibility allows reuse of the same ISL95822HRZ across multiple platform tiers-from entry-level notebooks (1-phase) to high-end desktops (2-phase)-reducing design complexity and inventory SKUs.
What thermal management features does the ISL95822HRZ include for high-power VRM designs?
The ISL95822HRZ includes adaptive body diode conduction time reduction, diode braking for overshoot suppression, and an exposed thermal pad in its 48-pin QFN package to facilitate direct PCB copper pour attachment. These features collectively reduce MOSFET switching losses and junction temperature rise during sustained high-current operation. The ISL95822HRZ also supports remote voltage sensing to maintain regulation accuracy despite localized VRM heating, ensuring reliable CPU voltage delivery under thermal stress.
ISL95822HRZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- Robust Ripple Regulator™ (R3)
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Obsolete
- Applications:
- Controller, Intel VR12.5, VR12.6
- Voltage - Input:
- 4.5V ~ 28V
- Number of Outputs:
- 1
- Voltage - Output:
- 0.5V ~ 2.3V
- Operating Temperature:
- -10°C ~ 100°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-QFN (4x4)
ISL95822HRZ FAQ
1.How can I place an order for ISL95822HRZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL95822HRZ 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 ISL95822HRZ reliable?
The price and inventory of ISL95822HRZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL95822HRZ is usually 5 days.
3.What payment methods are accepted for ISL95822HRZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL95822HRZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL95822HRZ?
ISL95822HRZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL95822HRZ 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 ISL95822HRZ?
For technical support, including ISL95822HRZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL95822HRZ requirements.
6.How does Aetrix verify that ISL95822HRZ is sourced from the original manufacturer or authorized distributors?
All ISL95822HRZ 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 ISL95822HRZ meets industry standards.
7.What is the process for return or replacement of ISL95822HRZ?
All ISL95822HRZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL95822HRZ, 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 ISL95822HRZ part is unused and in its original packaging.
Return procedure for ISL95822HRZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL95822HRZ Tags
-
TPS51206DSQR
Texas Instruments
-
TPS51200DRCR
Texas Instruments
-
TPS51200DRCT
Texas Instruments
-
TPS62740DSSR
Texas Instruments
-
TPS51100DGQR
Texas Instruments
-
NCP51200MNTXG
onsemi
-
NCP51400MNTXG
onsemi
-
RT9026GSP
Richtek USA Inc.
-
LP2998MRX/NOPB
Texas Instruments
-
TPS51200QDRCRQ1
Texas Instruments
-
DPA423GN-TL
Power Integrations
-
LM10011SD/NOPB
Texas Instruments
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
