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Renesas ISL95210IRZ-T7A
- Part No.:
- ISL95210IRZ-T7A
- Manufacturer:
- Renesas
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
ISL95210IRZ-T7A.pdf
- Description:
- IC REG BUCK PROG 10A 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,966
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Product details
Overview
ISL95210IRZ-T7A from Renesas (formerly Intersil) is a high-efficiency, integrated 10A synchronous buck regulator with R4™ hysteretic control architecture, delivering ±0.75% output voltage accuracy over –40°C to +100°C, operating from 2.97V–5.5V input, and supporting pin-selectable 0.60V–1.80V output voltages for notebook CPU core power and point-of-load applications.
For engineers reviewing the ISL95210IRZ-T7A datasheet, ISL95210IRZ-T7A pinout, ISL95210IRZ-T7A application, or ISL95210IRZ-T7A equivalent, key selection criteria include its 32-pin 6×4 mm QFN package, R4™ no-compensation transient response, programmable light-load modes (CCM/DCM/audio), ±10–20% output voltage margining, and integrated 14.8 mΩ high-side / 3.8 mΩ low-side MOSFETs enabling full 10A operation at +90°C ambient without airflow.
Technical Context
The ISL95210IRZ-T7A implements an R4™ synthetic-current-mode hysteretic modulator that eliminates external compensation while maintaining stability across wide output filter variations. Its control loop uses internal DAC-based voltage setpoints, soft-start slew rate of 2.5 mV/µs, and adaptive dead-time/shoot-through protection.
Digital configuration is enabled via seven logic pins: VSEL0/VSEL1 (DAC output voltage selection), MSEL/MPCT (voltage margining direction and magnitude), FCCM (CCM/DCM/audio mode), FSET (400/533/800 kHz switching frequency), and EN (enable). Protection includes valley overcurrent (10–14 A), overtemperature shutdown (150°C), and ±12% output overvoltage/undervoltage detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 10A continuous - supports full-rated load in +90°C ambient without forced airflow |
| Input Voltage Range | 2.97V to 5.5V - compatible with 3.3V and 5V system rails and battery-backed supplies |
| Output Voltage Accuracy | ±0.75% over –40°C to +100°C - ensures stable CPU/GPU core voltage regulation across industrial temperature range |
| Switching Frequency | 400/533/800 kHz (pin-selectable) - enables optimization of efficiency vs. EMI vs. component size |
| High-Side RDS(on) | 14.8 mΩ (typ) - reduces conduction loss and thermal stress at 10A output |
| Low-Side RDS(on) | 3.8 mΩ (typ) - minimizes synchronous rectification loss and improves light-load efficiency |
| Thermal Shutdown | 150°C junction - protects against sustained overload or poor PCB thermal design |
Pinout & Package
ISL95210IRZ-T7A is housed in a thermally enhanced 32-lead 6 mm × 4 mm QFN package with exposed thermal pad (T-PAD) connected to PGND. The package supports JEDEC-standard reflow and meets RoHS requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FCCM | Mode selection input | Selects CCM-only (VCC), DCM (AGND), or audio mode (floating) for optimized light-load efficiency |
| FSET | Frequency programming input | Sets switching frequency to 400 kHz (GND), 533 kHz (floating), or 800 kHz (VCC) |
| EN | Enable control input | Active-high logic enables regulation; pull to AGND disables output and reduces PVCC supply current to 0.4 µA |
| PHASE (pins 4–10) | Power stage switching node | Connects directly to output inductor; all 7 pins must be shorted on PCB for low-inductance, high-current path |
| PGND (pins 12,13,19–23) | Power ground return | Provides dedicated low-impedance return for switching currents; must be tied to T-PAD and separated from AGND |
| PVCC (pins 14,15) | Gate driver supply | Requires regulated 5V ±10% supply; powers internal gate drivers and biases VCC through 10 Ω resistor |
| VIN (pins 16–18) | Main input supply | Accepts 2.97–5.5V input; bypassed with ≥10 µF ceramic capacitor to PGND |
| VSEL0/VSEL1 | DAC voltage select inputs | 3-state logic selects one of nine preset outputs: 0.60V, 0.75V, 0.90V, 1.00V, 1.05V, 1.10V, 1.20V, 1.50V, or 1.80V |
| MSEL/MPCT | Voltage margining control | MSEL selects margin direction (high/low/nominal); MPCT sets margin magnitude (±10%/±15%/±20%) |
| VOUT | Feedback sense node | Direct connection point for output voltage regulation and soft-discharge; supports optional resistor divider within ±5% of DAC value |
| PGOOD | Power-good status output | Active-high CMOS signal indicating regulation; logic high level set by PG_IN voltage |
| T-PAD | Thermal & power ground pad | Exposed metal pad under package; must be soldered to PGND plane with ≥9 thermal vias for thermal performance |
Key Features
| Feature | Design Value |
|---|---|
| R4™ Control Architecture | Eliminates need for external compensation components while delivering <10 µs load transient recovery and stable operation with ceramic-only output filters |
| Integrated Power MOSFETs | 14.8 mΩ high-side PMOS + 3.8 mΩ low-side NMOS enable 10A output in compact layout with minimal thermal derating |
| Programmable Light-Load Modes | FCCM pin selects CCM (best transient response), DCM (highest light-load efficiency), or audio mode (ultra-low-noise switching) |
| Digital Output Voltage Margining | MSEL/MPCT pins support ±10%, ±15%, or ±20% margining around DAC-set voltage for production test and validation |
| Robust Protection Suite | Includes valley overcurrent (10–14 A), overtemperature (150°C shutdown), output overvoltage (112–120% VDAC), and undervoltage (81–87% VDAC) detection |
Applications
| Processor Core Power | Notebook System Rail |
|---|---|
Use Scenario: Delivering tightly regulated 1.05V–1.20V core voltage to Intel/AMD mobile CPUs under dynamic 0–10A load steps. IC Role / Device Role / Timing Role: Primary synchronous buck regulator providing high-current, low-noise DC/DC conversion with fast transient response. Use Value: R4™ architecture achieves <15 mV output deviation during 10A/50A/µs load transients, reducing required output capacitance by up to 30% versus compensated controllers. | Use Scenario: Generating 1.5V or 1.8V I/O or memory rail in ultrabook platforms with strict thermal envelope constraints. IC Role / Device Role / Timing Role: Integrated FET buck converter managing power delivery with minimal external components and board space. Use Value: Full 10A capability at +90°C ambient without airflow enables fanless or low-fan-speed designs, lowering acoustic noise and system power. |
| Point-of-Load Regulation | Industrial Embedded Power |
Use Scenario: Providing isolated, accurate 0.60V–1.80V supply to FPGA or ASIC cores on dense multilayer PCBs with limited thermal mass. IC Role / Device Role / Timing Role: High-density, digitally configurable POL regulator with margining and power-good signaling for system-level monitoring. Use Value: Pin-selectable output voltage and ±10–20% margining allow single BOM to support multiple voltage variants and end-of-line test coverage. | Use Scenario: Powering ARM-based industrial controllers requiring reliable 1.10V or 1.20V core supply across –40°C to +85°C ambient. IC Role / Device Role / Timing Role: Industrial-grade buck regulator with extended temperature qualification (–40°C to +100°C) and robust overvoltage/overcurrent protection. Use Value: ±0.75% output accuracy over full temperature range ensures consistent timing margins and logic integrity in mission-critical embedded systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RTQ2132B-QT | 3.3–18V input, 12A output, fixed 1.2V output; requires external compensation; no DAC voltage selection | Designed for wider-input industrial rails; lacks digital margining and multi-voltage DAC programming | Choose when input exceeds 5.5V or fixed 1.2V output suffices; avoid if programmable voltage or margining is required |
| TPS546D24RQFR | 4.5–18V input, 60A peak (dual-phase), PMBus interface, 0.5–3.3V programmable output; larger 5×6 mm QFN | Targets high-end server/telecom with digital telemetry and phase interleaving; higher cost and complexity | Choose for systems needing PMBus monitoring, higher current scalability, or tighter remote voltage sensing; not drop-in for ISL95210IRZ-T7A footprint |
Compared with RTQ2132B-QT and TPS546D24RQFR, the ISL95210IRZ-T7A offers superior integration for 5V-input, 10A point-of-load use cases-delivering pin-selectable voltage, no-compensation R4™ control, and margining in a smaller 6×4 mm package, while avoiding the overhead of digital interfaces or wide-input design compromises.
Availability
ISL95210IRZ-T7A is available at Aetrix Electronics and suitable for notebook computer power, processor core regulation, and industrial embedded power supplies requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for ISL95210IRZ-T7A 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 full technical and manufacturing continuity for legacy Intersil power management ICs.
The ISL95210IRZ-T7A belongs to Renesas' high-efficiency integrated-FET buck regulator product line, designed specifically for space-constrained, thermally demanding point-of-load applications in mobile computing and embedded systems.
FAQ
What is the operating temperature range for the ISL95210IRZ-T7A?
The ISL95210IRZ-T7A is specified for operation from –40°C to +100°C ambient temperature, with junction temperature rated up to +125°C. This extended industrial temperature grade makes it suitable for rugged notebook, embedded, and automotive-adjacent applications where thermal reliability is critical. The device maintains ±0.75% output voltage accuracy across this full range, ensuring stable regulation under real-world thermal stress.
How does the R4™ control architecture in the ISL95210IRZ-T7A improve transient response?
The R4™ architecture in the ISL95210IRZ-T7A uses synthetic current-mode hysteretic control without an integrator, eliminating loop delay from external compensation. This enables sub-10 µs recovery from 10A load steps, as verified in Figure 14 of the FN6938 datasheet. The ISL95210IRZ-T7A achieves this with inherent frequency oversampling and adaptive window modulation-directly translating to reduced output capacitance requirements and improved system-level stability.
Can the ISL95210IRZ-T7A be used with all-ceramic output capacitors?
Yes, the ISL95210IRZ-T7A supports all-ceramic output filters, but stability depends on total COUT, ESR, and LOUT. Equation 4 in the FN6938 datasheet defines the boundary condition: COUT·ESR + K·LOUT·COUT > (ISTEP·D)/(D·FSW·ΔIL). For example, 120 µF ceramic with ~0.67 mΩ ESR satisfies this at 800 kHz, while 76 µF triggers ring-back. Layout best practices-including tight PGND coupling and minimized PHASE loop area-are essential for stable all-ceramic operation of the ISL95210IRZ-T7A.
What are the supported output voltage options for the ISL95210IRZ-T7A?
The ISL95210IRZ-T7A supports nine factory-programmed output voltages via VSEL0 and VSEL1 pins: 0.60V, 0.75V, 0.90V, 1.00V, 1.05V, 1.10V, 1.20V, 1.50V, and 1.80V. These are implemented using an internal DAC; no external resistor divider is needed. A divider may be added for fine-tuning, but only within ±5% of the selected DAC value to avoid loop instability. All settings are valid across the full –40°C to +100°C operating range of the ISL95210IRZ-T7A.
Does the ISL95210IRZ-T7A support power-good signaling and voltage margining?
Yes, the ISL95210IRZ-T7A provides active-high CMOS PGOOD output referenced to PG_IN voltage, and full digital voltage margining via MSEL and MPCT pins. MSEL selects margin direction (high/nominal/low), while MPCT sets magnitude (±10%/±15%/±20%). Margining is slew-limited to the soft-start rate (2.5 mV/µs) and can be applied "on-the-fly" during operation. This enables production test coverage and validation without hardware changes-key for high-volume notebook and embedded manufacturing using the ISL95210IRZ-T7A.
ISL95210IRZ-T7A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Programmable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.97V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 2.16V
- Current - Output:
- 10A
- Frequency - Switching:
- 400kHz, 533kHz, 800kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-QFN (6x4)
ISL95210IRZ-T7A FAQ
1.How can I place an order for ISL95210IRZ-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL95210IRZ-T7A 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 ISL95210IRZ-T7A reliable?
The price and inventory of ISL95210IRZ-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL95210IRZ-T7A is usually 5 days.
3.What payment methods are accepted for ISL95210IRZ-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL95210IRZ-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL95210IRZ-T7A?
ISL95210IRZ-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL95210IRZ-T7A 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 ISL95210IRZ-T7A?
For technical support, including ISL95210IRZ-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL95210IRZ-T7A requirements.
6.How does Aetrix verify that ISL95210IRZ-T7A is sourced from the original manufacturer or authorized distributors?
All ISL95210IRZ-T7A 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 ISL95210IRZ-T7A meets industry standards.
7.What is the process for return or replacement of ISL95210IRZ-T7A?
All ISL95210IRZ-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL95210IRZ-T7A, 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 ISL95210IRZ-T7A part is unused and in its original packaging.
Return procedure for ISL95210IRZ-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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