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Renesas ISL95210IRZ
- Part No.:
- ISL95210IRZ
- Manufacturer:
- Renesas
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
ISL95210IRZ.pdf
- Description:
- IC REG BUCK PROG 10A 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,267
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Product details
Overview
ISL95210IRZ 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 ambient, supporting 2.97V–5.5V input and programmable 0.60V–1.80V output, used in notebook CPU core power delivery.
For engineers reviewing the ISL95210IRZ datasheet, ISL95210IRZ pinout, ISL95210IRZ application, or ISL95210IRZ equivalent, key selection criteria include its -40°C to +100°C industrial temperature rating, 32-pin 6mm×4mm QFN package, R4™ no-compensation transient response, and DAC-based output voltage programming with margining capability.
Technical Context
The ISL95210IRZ implements a patented R4™ synthetic current-mode hysteretic modulator that eliminates external compensation while maintaining stability across wide output filter variations. It integrates high-side PMOS (14.8–19.5 mΩ) and low-side NMOS (3.8–5.7 mΩ) power FETs, enabling full 10A continuous output without airflow at +90°C ambient.
Digital control pins-including VSEL0/VSEL1 for 9 preset DAC voltages, MSEL/MPCT for ±10%/±15%/±20% margining, FCCM for CCM/DCM/audio mode selection, and FSET for 400/533/800 kHz switching frequency-enable flexible system-level configuration without firmware.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 10A continuous - supports full-load operation in +90°C still-air environments without forced cooling. |
| Input Voltage Range | 2.97V to 5.5V - compatible with 3.3V and 5V intermediate bus architectures. |
| Output Voltage Accuracy | ±0.75% over –40°C to +100°C - ensures stable core voltage regulation under industrial thermal stress. |
| Switching Frequency | 400/533/800 kHz (pin-selectable) - balances efficiency, EMI, and inductor size trade-offs. |
| Efficiency | Up to 95% - achieved via low-RDS(on) integrated MOSFETs and optimized gate drive. |
| Protection Features | Overcurrent (valley/peak), overvoltage (112–120% VDAC), undervoltage (81–87% VDAC), overtemperature (150°C shutdown) - enables robust self-protected operation. |
| Package | 32-pin 6mm × 4mm QFN with exposed thermal pad - provides low θJA = 40°C/W for high-power density PCB layouts. |
Pinout & Package
ISL95210IRZ uses a 32-lead, 6mm × 4mm, 0.5mm pitch QFN package (Pb-free, RoHS-compliant, JEDEC MO-220 variant L32.6x4B) with an exposed thermal pad (T-PAD) connected internally to PGND for enhanced thermal dissipation and power return path integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FCCM | Mode control input | Selects CCM-only (VCC), DCM-enabled (AGND), or audio-mode (floating) for light-load efficiency optimization. |
| FSET | Frequency programming input | Sets switching frequency to 400kHz (GND), 533kHz (floating), or 800kHz (VCC) - directly impacts ripple, EMI, and inductor sizing. |
| EN | Enable logic input | Active-high enable with 2.0V rising threshold - controls startup/shutdown sequencing in multi-rail systems. |
| PHASE (pins 4–10) | Power switching node | Single-node connection point for output inductor - all 7 PHASE pins must be shorted on PCB for low-inductance, high-current routing. |
| VIN (pins 16–18) | Main input power rail | Accepts 2.97V–5.5V supply; bypassed with ≥10µF ceramic capacitor to PGND - shared with PVCC in 5V systems. |
| PVCC (pins 14–15) | Gate driver supply | Requires regulated 5V ±10% independent of VIN if VIN < 4.5V - powers internal drivers and biases VCC through 10Ω resistor. |
| VSEL0 / VSEL1 | DAC voltage select inputs | 3-state logic (low/floating/high) selects one of nine preset output voltages (0.60V–1.80V) - enables hardware-programmed rail configuration. |
| MSEL / MPCT | Margining control inputs | Set output voltage offset direction (high/low/nominal) and magnitude (±10%/±15%/±20%) - supports production test margining without software. |
| PGOOD / PG_IN | Power-good signaling pair | PGOOD is CMOS output referenced to PG_IN voltage - allows flexible PGOOD logic level matching (e.g., 1.8V, 3.3V, 5V) in host systems. |
| AGND / PGND | Analog & power ground | Separate AGND (precision reference return) and PGND (high-current switching return) - must be joined at single-point star ground to minimize noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| R4™ Control Architecture | Eliminates external compensation components while delivering sub-10µs load transient recovery and stable operation across ceramic-only output filters. |
| DAC-Based Output Programming | Hardware-selectable 0.60V–1.80V outputs via VSEL0/VSEL1 - removes need for resistor dividers and associated tolerance/thermal drift errors. |
| Programmable Light-Load Efficiency | FCCM pin enables CCM (best transient), DCM (highest light-load efficiency), or audio-mode (ultra-low-noise switching) - adapts to dynamic system power states. |
| Output Voltage Margining | MSEL/MPCT pins support ±10%/±15%/±20% factory test margining - simplifies end-of-line validation without firmware changes or external DACs. |
| Integrated Protection Suite | Comprehensive fault coverage including valley/peak overcurrent, overvoltage, undervoltage, and thermal shutdown - reduces BOM count and improves system reliability. |
Applications
| High-Performance Notebook CPU Core Power | Industrial FPGA I/O Bank Supply |
|---|---|
Use Scenario: Delivering tightly regulated 1.10V @ 10A to Intel/AMD mobile processors during burst workloads with rapid current transients up to 50A/µs. IC Role / Device Role / Timing Role: Primary synchronous buck regulator implementing core voltage regulation with R4™ fast transient response and soft-start slew control. Use Value: Maintains ±0.75% output accuracy across –40°C to +100°C ambient while enabling compact 4-component solution size and eliminating compensation design effort. |
Use Scenario: Powering Xilinx/Intel FPGA I/O banks requiring 1.8V @ 8A with precise voltage margining for production burn-in and functional testing. IC Role / Device Role / Timing Role: Configurable point-of-load regulator using DAC and MSEL/MPCT pins to set nominal 1.8V output and ±15% margining for test compliance. Use Value: Hardware-based margining eliminates test software dependencies; ±0.75% accuracy ensures signal integrity margins are preserved across temperature extremes. |
| Embedded GPU Memory Interface Supply | Medical Imaging ASIC Bias Rail |
Use Scenario: Generating low-noise 1.20V @ 10A for GDDR6 memory interfaces in edge AI accelerators where EMI-sensitive analog circuits coexist on same PCB. IC Role / Device Role / Timing Role: High-current buck converter operating in audio-mode (FCCM floating) to suppress audible switching noise while maintaining tight regulation. Use Value: Audio-mode operation reduces switching frequency harmonics below 20kHz, preventing interference with analog sensor front-ends and RF subsystems. |
Use Scenario: Providing fail-safe 0.90V @ 6A bias rail for radiation-tolerant medical imaging ASICs requiring guaranteed operation from –40°C to +100°C with built-in overvoltage/undervoltage protection. IC Role / Device Role / Timing Role: Safety-critical power regulator with autonomous protection triggering (112–120% OV, 81–87% UV) and thermal shutdown at 150°C junction. Use Value: Integrated protection prevents ASIC latch-up or data corruption during thermal runaway or input supply faults - no external supervisor IC required. |
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 |
|---|---|---|---|
| TPS546D24RQFR | 6V–18V input range; 12A output; PMBus interface; requires external compensation; larger 5mm×5mm QFN-32 package. | Targets higher-input industrial systems (12V bus); adds digital telemetry and sequencing but increases design complexity. | Choose when digital monitoring, multi-phase sync, or >5.5V input is required - not drop-in compatible due to different pinout and control interface. |
| RTQ2134BGQW | 2.7V–18V input; 10A output; fixed 500kHz/750kHz switching; ±1% output accuracy over –40°C to +125°C; smaller 4mm×4mm QFN-24. | Optimized for space-constrained designs; lacks DAC programming, margining, and R4™ transient performance. | Choose for cost-sensitive, lower-accuracy applications where board area is critical and hardware configurability is secondary. |
Compared with TPS546D24RQFR and RTQ2134BGQW, the ISL95210IRZ uniquely combines industrial temperature rating, no-compensation R4™ control, DAC-based voltage selection, and hardware margining in a compact 6mm×4mm footprint - making it optimal for high-reliability, thermally demanding notebook and embedded computing power rails.
Availability
ISL95210IRZ is available at Aetrix Electronics and suitable for notebook CPU core power, FPGA I/O bank supplies, and medical imaging ASIC bias rails requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ISL95210IRZ 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 supply chain support for legacy Intersil power management products including the ISL95210IRZ.
The ISL95210IRZ belongs to Renesas' high-efficiency integrated FET buck regulator product line, designed specifically for demanding point-of-load applications in portable computing, industrial automation, and medical electronics where thermal resilience and hardware configurability are critical.
FAQ
What is the operating temperature range of the ISL95210IRZ?
The ISL95210IRZ is rated for operation from –40°C to +100°C ambient temperature, with a maximum junction temperature of +125°C and thermal shutdown at +150°C. This extended industrial temperature range distinguishes it from the ISL95210HRZ (–10°C to +100°C) and makes the ISL95210IRZ suitable for harsh-environment applications such as automotive infotainment power stages and outdoor industrial controllers.
How does the R4™ control architecture in the ISL95210IRZ improve transient response?
The R4™ architecture in the ISL95210IRZ uses a synthetic current signal instead of physical current sensing, eliminating integrator delay and enabling sub-10µs recovery from 10A load steps. This results in significantly reduced output voltage deviation compared to traditional current-mode controllers - a key advantage confirmed in Figure 14 of the ISL95210IRZ datasheet showing clean 50A/µs transient waveforms without ring-back when properly configured.
Can the ISL95210IRZ be used with all-ceramic output capacitors?
Yes, the ISL95210IRZ supports all-ceramic output filters, but stability depends on total COUT, ESR, and LOUT. Equation 4 in the ISL95210IRZ datasheet defines the boundary condition: COUT·ESR + K·LOUT·COUT > (ISTEP·D)/(D·FSW·ΔIL). For example, 120µF ceramic with 0.67mΩ ESR satisfies this for 800kHz operation, whereas 76µF triggers ring-back - confirming that proper ceramic sizing is essential for stable ISL95210IRZ operation.
What are the key differences between ISL95210IRZ and ISL95210HRZ?
The ISL95210IRZ and ISL95210HRZ share identical electrical specifications and pinouts, differing only in temperature rating: ISL95210IRZ operates from –40°C to +100°C ambient, while ISL95210HRZ is limited to –10°C to +100°C. The ISL95210IRZ also exhibits ±0.75% output accuracy over its full range versus ±0.60% for the HRZ variant - a trade-off for broader thermal coverage. Both use the same 32-pin 6mm×4mm QFN package.
How is output voltage margining implemented on the ISL95210IRZ?
Output voltage margining on the ISL95210IRZ is implemented via two dedicated pins: MSEL selects direction (high/low/nominal), and MPCT sets magnitude (±10%/±15%/±20%). For example, pulling MSEL to VCC and MPCT to GND applies +15% margin to the DAC-set voltage (e.g., 1.20V → 1.38V). The ISL95210IRZ slews to the new voltage at 2.5mV/µs, enabling in-system margin testing without firmware intervention or external DACs.
ISL95210IRZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tube
- 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 FAQ
1.How can I place an order for ISL95210IRZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL95210IRZ 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 reliable?
The price and inventory of ISL95210IRZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL95210IRZ is usually 5 days.
3.What payment methods are accepted for ISL95210IRZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL95210IRZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL95210IRZ?
ISL95210IRZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL95210IRZ 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?
For technical support, including ISL95210IRZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL95210IRZ requirements.
6.How does Aetrix verify that ISL95210IRZ is sourced from the original manufacturer or authorized distributors?
All ISL95210IRZ 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 meets industry standards.
7.What is the process for return or replacement of ISL95210IRZ?
All ISL95210IRZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL95210IRZ, 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 part is unused and in its original packaging.
Return procedure for ISL95210IRZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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