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Renesas ISL6263ACRZ
- Part No.:
- ISL6263ACRZ
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
ISL6263ACRZ.pdf
- Description:
- IC REG CONV INTEL 1OUT 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,643
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Product details
Overview
ISL6263ACRZ from Renesas (formerly Intersil) is a single-phase synchronous-buck PWM voltage regulator implementing Intel IMVP-6+ for GPU render engine core power delivery. It delivers precision 0.412V–1.2875V output with 0.5% system accuracy (0°C to +100°C), integrated MOSFET drivers, real-time power monitor, and Robust Ripple Regulator (R3) Technology™ for superior transient response in mobile GPU platforms.
For engineers reviewing the ISL6263ACRZ datasheet, ISL6263ACRZ pinout, ISL6263ACRZ application, or ISL6263ACRZ equivalent, key selection criteria include IMVP-6+ VID compliance, differential Kelvin sensing, DCR/resistive current sensing support, diode emulation mode configuration, and -10°C to +100°C operating range.
Technical Context
The ISL6263ACRZ implements R3 Technology™-a hybrid modulator combining fixed-frequency PWM stability with hysteretic-like variable-frequency response during load transients, using synthesized ripple signals (VR) derived from input voltage and VSOFT. Its error amplifier maintains tight regulation across the full 5-bit VID range while enabling dynamic droop compensation per IMVP-6+ load-line requirements.
It integrates dual current-sensing paths (lossless DCR or precision resistive), a true differential Kelvin amplifier (VSEN/RTN), programmable PWM frequency (200–500 kHz), and configurable diode emulation with audible-frequency filtering. Protection includes latched OCP (2 µs short-circuit response), OVP (195 mV over SOFT), and UVP (300 mV under SOFT), all referenced to the soft-start voltage ramp.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage Range | 0.41200 V to 1.28750 V via 5-bit VID; supports full IMVP-6+ GPU core voltage states including suspend modes. |
| System Accuracy | ±0.5% at 1.28750–0.74675 V (0°C to +100°C); enables stable GPU operation without external calibration. |
| Input Voltage Range | +5.0 V to +25.0 V; compatible with standard 5 V, 12 V, or 19 V notebook power rails. |
| PWM Frequency | Programmable 200–500 kHz; higher frequencies reduce output filter size; lower frequencies improve light-load efficiency. |
| Operating Temp | -10°C to +100°C ambient; validated for mobile GPU thermal environments with junction limit of +150°C. |
| Current Sensing | Supports both lossless inductor DCR and discrete shunt resistor methods; eliminates need for separate current-sense IC. |
| Power Monitor | PMON pin outputs voltage proportional to VOUT × IOUT; provides real-time GPU power telemetry for IMVP-6+ compliance. |
Pinout & Package
ISL6263ACRZ is housed in a 32-lead 5 mm × 5 mm QFN package with exposed thermal pad (Pb-free, RoHS compliant). The package supports high-power density layout with low θJA = 35°C/W and θJC = 6°C/W for efficient heat transfer to PCB.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RBIAS (1) | Reference bias node | Sets internal 10 µA current reference; requires 150 kΩ ±1% resistor to VSS for accurate OCSET and droop scaling. |
| SOFT (2) | Soft-start and error amp non-inverting input | Controls output slew rate; internally connects to VID DAC for unified soft-start and dynamic VID transitions. |
| OCSET (3) | Overcurrent threshold programming | Resistor from OCSET to VO sets trip point; enables precise OCP tuning independent of load line. |
| VW (4) | PWM frequency control | Resistor from VW to COMP sets nominal switching frequency; enables fine-tuning of CCM performance and DEM entry point. |
| COMP (5) | Error amplifier output | Drives R3 modulator; connects to external compensation network for loop stability across load and input conditions. |
| FB (6) | Error amplifier inverting input | Connects to feedback divider; used only when local sensing is required (not for Kelvin mode). |
| VDIFF (7) | Differential summing output | Combines VSEN, RTN, DROOP, and VO signals; feeds R3 modulator for accurate load-line regulation. |
| VSEN (8) | Kelvin sense positive | Direct connection to GPU VCC_SNS pin; enables die-level voltage regulation by compensating PCB trace resistance. |
| RTN (9) | Kelvin sense negative | Direct connection to GPU VSS_SNS pin; completes remote sensing path for true differential measurement. |
| DROOP (10) | Droop amplifier output | Carries current-proportional signal; used for IMVP-6+ load-line implementation and OCP detection. |
| DFB (11) | Droop amplifier feedback | Connects to VO for closed-loop droop gain setting; determines slope of VOUT vs. IOUT curve. |
| VO (12) | Output voltage reference | Connects to converter output; serves as reference for droop amplifier and OVP/UVP comparators. |
| VSUM (13) | Droop current summing node | Accepts DCR or resistive current signal; differential input to droop amplifier with VO as reference. |
| VIN (14) | Input feed-forward node | Provides input voltage information to R3 modulator; improves line transient response when connected near HS-FET drain. |
| VSS (15) | Analog ground | Reference for all analog circuitry; must be low-impedance and separated from PGND for noise immunity. |
| VDD (16) | IC logic supply | +5 V ±5% supply; powers internal logic, POR, and gate drivers; requires ≥1 µF MLCC decoupling to VSS. |
| BOOT (17) | High-side gate driver supply | Bootstrap capacitor connects BOOT–PHASE; enables floating drive for N-channel HS-FET. |
| UGATE (18) | High-side gate driver output | Drives HS-FET gate; 2 A sink/source capability with 1.0–1.5 Ω on-resistance ensures fast switching. |
| PHASE (19) | HS-FET drain node monitor | Detects phase polarity for diode emulation; critical for DEM entry/exit timing and shoot-through protection. |
| PGND (20) | Low-side gate driver return | Current return for LGATE only; connects to LS-FET sources; must be low-inductance path. |
| LGATE (21) | Low-side gate driver output | Drives LS-FET gate; 4 A sink capability (0.5–0.9 Ω) supports high-efficiency synchronous rectification. |
| PVCC (22) | Gate driver supply | +5 V ±5% supply for both UGATE and LGATE; powers internal bootstrap diode; requires ≥1 µF MLCC to PGND. |
| VID0–VID4 (23–27) | 5-bit voltage identification inputs | LSB-to-MSB digital interface; supports non-sequential VID changes for dynamic GPU state transitions. |
| PMON (28) | Power monitor output | Voltage proportional to VOUT × IOUT; sinks/sourcing up to 2 mA; enables real-time GPU power tracking. |
| VR_ON (29) | Enable/disable control | Active-high logic input; enables converter when >2.3 V; disables and discharges soft-start cap when <1.0 V. |
| AF_EN (30) | Audio filter enable | Configures audible-frequency PWM filter in DEM; prevents coil whine during ultra-light loads. |
| PGOOD (31) | Power-good open-drain output | Asserts high-impedance after 13 cycles and 90% VOUT tracking; indicates stable regulation to GPU or system controller. |
| FDE (32) | DEM enable control | Together with AF_EN and VID, selects DEM activation threshold (130% or 150% of nominal) and audio filter behavior. |
Key Features
| Feature | Design Value |
|---|---|
| Robust Ripple Regulator (R3) Technology™ | Hybrid modulator delivering both fixed-frequency stability and hysteretic-like transient response without sacrificing light-load efficiency. |
| Integrated MOSFET Drivers + Bootstrap Diode | Eliminates need for external gate drivers or discrete bootstrap diodes; reduces BOM count and layout area. |
| Dual Current Sensing Architecture | Supports either DCR (inductor-based) or resistive (shunt-based) sensing-enables optimal trade-off between cost, accuracy, and thermal performance. |
| Configurable Diode Emulation Mode (DEM) | Automatically enters DEM at light load to block reverse inductor current; configurable window voltage step (30%/50%) optimizes efficiency vs. noise. |
| IMVP-6+ Compliant Power Monitor | PMON output provides real-time VOUT × IOUT telemetry with sourcing/sinking capability for accurate GPU power budgeting. |
| Processor Socket Kelvin Sensing | VSEN/RTN differential amplifier enables die-level voltage regulation, compensating for PCB and connector IR drops in mobile GPU systems. |
Applications
| Mobile GPU Core Power | Intel Santa Rosa Platform |
|---|---|
Use Scenario: Notebook GPU voltage regulation for Intel GMA X3100/X3500 graphics cores requiring IMVP-6+ compliance and dynamic performance state transitions. IC Role / Device Role / Timing Role: Primary single-phase buck controller managing VCCGFX rail with 5-bit VID decoding, Kelvin sensing, and real-time power telemetry. Use Value: Enables precise GPU core voltage scaling across P-states (0–15) with <±0.5% accuracy, reducing GPU power consumption by up to 22% versus fixed-voltage solutions. | Use Scenario: Reference design implementation for Intel Santa Rosa chipset-based notebooks with integrated GPU rendering engines. IC Role / Device Role / Timing Role: IMVP-6+ GPU core voltage regulator with pre-biased start-up, soft-start slew-rate matching, and seamless VID transitions during CPU/GPU co-scaling. Use Value: Guarantees compatibility with Intel's Santa Rosa platform validation requirements, including 120 µs OCP response and 1.55 V severe OVP latch. |
| GPU Render Engine Regulation | Mobile Graphics Module Power |
Use Scenario: Dedicated GPU render engine power delivery in ultraportable and thin-and-light notebooks where thermal headroom is constrained. IC Role / Device Role / Timing Role: Synchronous buck controller with integrated droop amplifier, DCR current sensing, and R3 modulator for rapid load-step response (<10 µs). Use Value: Maintains GPU voltage within ±15 mV during 10 A/µs load transients, preventing graphics artifacts and frame drops during intensive rendering. | Use Scenario: Power management for discrete MXM-form factor GPU modules requiring compact, high-efficiency core rail regulation. IC Role / Device Role / Timing Role: Single-phase IMVP-6+ regulator supporting up to 25 A output with 32-pin QFN footprint and thermal pad for conduction cooling. Use Value: Reduces solution size by 35% versus dual-phase alternatives while maintaining IMVP-6+ compliance and thermal derating down to -10°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar GPU core voltage regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL6263AIRZ | Wider operating temperature range (-40°C to +100°C); identical electrical specs and pinout. | Required for extended-temperature industrial or automotive-adjacent GPU designs; not needed for standard consumer notebooks. | Select ISL6263AIRZ only if ambient operation below -10°C is required; otherwise ISL6263ACRZ offers same performance at lower cost. |
| RTQ2132BGQW | Single-phase IMVP-6.5-compliant controller; supports 0.25–1.5 V output; no integrated bootstrap diode; requires external gate drivers. | Targets newer GPU generations with tighter voltage tolerances and enhanced telemetry; lacks integrated power monitor and Kelvin sensing amplifier. | Choose RTQ2132BGQW only when upgrading to IMVP-6.5 platforms; ISL6263ACRZ remains optimal for legacy IMVP-6+ Santa Rosa and GM45 systems. |
Compared with ISL6263AIRZ, the ISL6263ACRZ trades -40°C capability for cost and qualification simplicity in commercial notebooks; compared with RTQ2132BGQW, it delivers full IMVP-6+ integration-including Kelvin sensing, power monitor, and bootstrap diode-at the expense of IMVP-6.5 feature set.
Availability
ISL6263ACRZ is available at Aetrix Electronics and suitable for mobile GPU core power, Intel Santa Rosa platform designs, and GPU render engine regulation requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ISL6263ACRZ 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 continues to support its high-performance analog and power management portfolio for computing and mobility applications.
The ISL6263ACRZ belongs to Renesas' IMVP-6+ GPU voltage regulator product line, designed specifically for Intel mobile platform graphics core power delivery with emphasis on precision, integration, and thermal robustness.
FAQ
What is the operating temperature range specified for the ISL6263ACRZ?
The ISL6263ACRZ is rated for an ambient operating temperature range of -10°C to +100°C, as confirmed in the FN9284 Rev.3.00 datasheet ordering table and recommended operating conditions section. This range is validated for reliable operation in mobile GPU thermal environments, with a maximum junction temperature of +150°C.
Does the ISL6263ACRZ support both DCR and resistive current sensing?
Yes, the ISL6263ACRZ supports both lossless inductor DCR current sensing and precision resistive (shunt-based) current sensing, as detailed in Figures 2 and 3 of the FN9284 datasheet. The VSUM, DROOP, VO, and DFB pins provide flexible interface options for either method without requiring external amplifiers or ADCs.
How does the ISL6263ACRZ implement IMVP-6+ compliant power monitoring?
The ISL6263ACRZ implements IMVP-6+ power monitoring via its PMON pin, which outputs a voltage proportional to the product of regulated output voltage (VSEN–VSS) and output inductor current (DROOP–VO). The PMON pin provides sourcing and sinking capability (up to 2 mA) for accurate real-time GPU power telemetry, as defined in Equation 1 of the FN9284 datasheet.
What protection features are integrated into the ISL6263ACRZ?
The ISL6263ACRZ integrates overvoltage protection (OVP), undervoltage protection (UVP), and overcurrent protection (OCP) with latched fault response. OVP triggers at +195 mV above VSOFT, UVP at −300 mV below VSOFT (both >1 ms), and OCP responds in 120 µs for moderate overloads or 2 µs for hard shorts, as specified in Table 3 of FN9284 Rev.3.00.
Can the ISL6263ACRZ operate with pre-biased output voltages during start-up?
Yes, the ISL6263ACRZ supports pre-biased output start-up, as explicitly stated in the "Features" section of the FN9284 datasheet. This allows the regulator to safely initialize into an already partially charged output rail-critical for systems with multiple power domains or hot-plug scenarios-without causing reverse current or instability.
ISL6263ACRZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- Robust Ripple Regulator™ (R3)
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Obsolete
- Applications:
- Converter, Intel IMVP-6
- Voltage - Input:
- 5V ~ 25V
- Number of Outputs:
- 1
- Voltage - Output:
- 0.41V ~ 1.29V
- Operating Temperature:
- -10°C ~ 100°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-QFN (5x5)
ISL6263ACRZ FAQ
1.How can I place an order for ISL6263ACRZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL6263ACRZ 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 ISL6263ACRZ reliable?
The price and inventory of ISL6263ACRZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL6263ACRZ is usually 5 days.
3.What payment methods are accepted for ISL6263ACRZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL6263ACRZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL6263ACRZ?
ISL6263ACRZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL6263ACRZ 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 ISL6263ACRZ?
For technical support, including ISL6263ACRZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL6263ACRZ requirements.
6.How does Aetrix verify that ISL6263ACRZ is sourced from the original manufacturer or authorized distributors?
All ISL6263ACRZ 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 ISL6263ACRZ meets industry standards.
7.What is the process for return or replacement of ISL6263ACRZ?
All ISL6263ACRZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL6263ACRZ, 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 ISL6263ACRZ part is unused and in its original packaging.
Return procedure for ISL6263ACRZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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