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Renesas ISL95210HRZ-T
- Part No.:
- ISL95210HRZ-T
- Manufacturer:
- Renesas
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
ISL95210HRZ-T.pdf
- Description:
- IC REG BUCK PROG 10A 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,128
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Product details
Overview
ISL95210HRZ-T from Renesas (formerly Intersil) is a high-efficiency, integrated 10A synchronous buck regulator with R4™ hysteretic control architecture, delivering precise 0.6% output voltage accuracy over -10°C to +100°C. It operates from 2.97V–5.5V input, supports pin-selectable 0.6V–1.8V output via DAC inputs VSEL0/VSEL1, and achieves up to 95% efficiency at 800kHz in a compact 6mm×4mm 32-pin QFN package. It is designed for point-of-load power in notebook CPU/GPU core rails.
For engineers reviewing the ISL95210HRZ-T datasheet, ISL95210HRZ-T pinout, ISL95210HRZ-T application, or ISL95210HRZ-T equivalent, key selection considerations include its ±0.6% output accuracy across temperature, programmable light-load modes (CCM/DCM/audio), margining capability, and R4™ architecture's no-compensation, fast transient response-critical for high-dV/dt digital load applications.
Technical Context
The ISL95210HRZ-T 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-set reference voltage, soft-start slew rate of 2.5mV/µs, and digitally programmable switching frequency (400/533/800kHz) via FSET pin.
It integrates low-RDS(on) PMOS high-side (14.8–19.5mΩ) and NMOS low-side (3.8–5.7mΩ) MOSFETs, supports pre-biased start-up, and features comprehensive protection including valley overcurrent (10–14A trip), overvoltage (112–120% VDAC), undervoltage (81–87% VDAC), and thermal shutdown at 150°C with 125°C recovery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 10A continuous; enables single-chip core rail supply for mid-power processors without external MOSFETs or heatsinks. |
| Input Voltage Range | 2.97V to 5.5V; compatible with 3.3V and 5V intermediate bus architectures, including USB-PD and battery-backed systems. |
| Output Voltage Accuracy | ±0.6% over -10°C to +100°C; ensures stable logic-level compliance for DDR memory, GPU cores, and SoC I/O domains. |
| Switching Frequency | 400/533/800kHz (pin-selectable); higher frequencies reduce inductor size but increase switching loss-800kHz enables <1µH inductors in space-constrained notebooks. |
| Efficiency | Up to 95% at 800kHz (VIN=5V, VOUT=1.2V, IOUT=10A); minimizes thermal rise in sealed enclosures, enabling full-power operation at +90°C ambient without airflow. |
| Protection Features | Valley overcurrent, overvoltage, undervoltage, overtemperature, and soft-discharge; prevents system latch-up and enables safe hot-swap and sequencing in multi-rail platforms. |
| Package | 32-pin 6mm×4mm QFN with exposed thermal pad; provides low θJA = 40°C/W and θJC = 4°C/W for direct board-level heat sinking. |
Pinout & Package
ISL95210HRZ-T is housed in a 32-lead, 6mm × 4mm, 0.5mm pitch QFN package (Pb-free, RoHS-compliant, MSL3). The exposed thermal pad (T-PAD) must be soldered to a PGND plane with ≥6 thermal vias for optimal thermal performance and power integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FCCM | Mode control input | Selects CCM-only (VCC), DCM-enabled (AGND), or audio mode (floating); determines light-load efficiency strategy and audible noise profile. |
| FSET | Frequency programming input | Sets switching frequency: GND = 400kHz, floating = 533kHz, VCC = 800kHz; enables trade-off between EMI, inductor size, and efficiency. |
| EN | Enable logic input | Active-high enable with 2.0V rising threshold; allows precise power sequencing and system-level sleep/wake coordination. |
| PHASE (pins 4–10) | Power switch node | Connects directly to output inductor; all 7 pins must be shorted on PCB to minimize parasitic inductance and ensure balanced current sharing. |
| VIN (pins 16–18) | Main input power | Accepts 2.97–5.5V; requires local 10–22µF ceramic bypass to PGND; multiple pins reduce IR drop and improve high-current delivery. |
| PVCC (pins 14–15) | Gate driver supply | Must be 5V ±10%; powers internal MOSFET drivers and biases VCC through integrated 10Ω resistor-requires separate decoupling if VIN < 4.5V. |
| VSEL0 / VSEL1 | DAC voltage programming | 3-state logic inputs selecting 9 preset outputs (0.60V–1.80V); eliminates need for external resistor divider in most applications. |
| MSEL / MPCT | Voltage margining control | MSEL selects margin direction (high/low/nominal); MPCT sets margin magnitude (±10%/±15%/±20%); used for production test and reliability validation. |
| PGOOD / PG_IN | Power-good signaling | CMOS PGOOD output referenced to PG_IN voltage; enables flexible rail sequencing and fault reporting in multi-regulator systems. |
| T-PAD | Thermal & power ground | Exposed metal pad tied to PGND; mandatory for thermal dissipation and high-current return path-must be connected via ≥6 thermal vias. |
Key Features
| Feature | Design Value |
|---|---|
| R4™ Control Architecture | No external compensation required; delivers sub-10µs load transient response with minimal output capacitance-reduces BOM count and layout area. |
| Integrated Power Stage | Low-RDS(on) PMOS/NMOS MOSFETs (14.8mΩ/3.8mΩ typ) eliminate discrete FETs and gate drivers, reducing solution size to just 4 external components. |
| Digital Output Programming | VSEL0/VSEL1 select 9 factory-trimmed output voltages (0.60V–1.80V); avoids resistor tolerance errors and simplifies design reuse across voltage variants. |
| Programmable Light-Load Efficiency | FCCM pin enables CCM (best transient), DCM (best light-load efficiency), or audio mode (ultra-low-noise switching)-adapts to dynamic workload profiles. |
| Output Voltage Margining | MSEL/MPCT pins support ±10–20% margining around DAC-set voltage; enables end-of-line functional testing and margin validation without hardware change. |
| Robust Protection Suite | Includes valley overcurrent, overvoltage, undervoltage, overtemperature, and soft-discharge; prevents damage during fault conditions and supports hot-plug operation. |
Applications
| Server CPU Core Rail | Notebook GPU Voltage Regulator |
|---|---|
|
Use Scenario: High-current, low-voltage core supply for dual-socket Xeon servers requiring tight regulation under rapid load transients. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering 1.0V @ 10A with ±0.6% accuracy and <10µs transient recovery. Use Value: Eliminates need for external power stages and compensation networks, reducing PCB area by >30% versus discrete solutions while meeting Intel VR13 specs. |
Use Scenario: Compact, thermally constrained GPU core rail in ultrabook designs with strict acoustic and thermal limits. IC Role / Device Role / Timing Role: Integrated 10A buck converter supporting dynamic voltage scaling (DVS) and audio-mode light-load operation. Use Value: FCCM-selectable DCM/audio modes suppress audible coil whine; 95% efficiency at 800kHz enables fanless operation at +90°C ambient. |
| DDR Memory I/O Supply | Industrial FPGA Core Power |
|
Use Scenario: Stable 1.2V/1.35V supply for LPDDR4/DDR5 memory interfaces demanding low noise and fast transient response. IC Role / Device Role / Timing Role: Point-of-load regulator with programmable soft-start slew rate (2.5mV/µs) and ±0.6% output accuracy across temperature. Use Value: R4™ architecture ensures <±15mV droop during 5A/µs load steps-meets JEDEC AC timing margins without additional bulk capacitance. |
Use Scenario: Reliable core rail for Xilinx Kintex or Intel Arria FPGAs in industrial automation controllers operating from -10°C to +100°C. IC Role / Device Role / Timing Role: High-accuracy, thermally robust buck regulator with overtemperature shutdown at 150°C and 125°C recovery hysteresis. Use Value: Junction temperature rating up to +125°C and θJC = 4°C/W allow direct mounting on copper pours-enables conduction-cooled designs without forced airflow. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RTQ2132BGQW | 12A rated, 2.7–5.5V input, ±1% output accuracy, requires external compensation, 16-pin QFN (4×4mm). | Higher current but lower accuracy and larger footprint; lacks margining and audio-mode features. | Choose RTQ2132BGQW only when >10A headroom is required and ±1% accuracy is acceptable-no pin compatibility. |
| TPS546D24ARVFT | 15A, 3–16V input, PMBus interface, ±0.5% accuracy, 30-pin QFN (5×5mm), requires external compensation. | Supports digital telemetry and sequencing but adds complexity; larger package and higher BOM cost. | Choose TPS546D24ARVFT for systems needing real-time telemetry and multi-rail coordination-requires redesign for pinout and firmware. |
Compared with RTQ2132BGQW and TPS546D24ARVFT, the ISL95210HRZ-T offers superior accuracy (±0.6% vs ±1%/±0.5%), smaller footprint (6×4mm vs 4×4mm/5×5mm), and unique analog-programmable features (margining, audio mode, no-compensation R4™) ideal for cost-sensitive, space-constrained, and acoustically sensitive applications.
Availability
ISL95210HRZ-T is available at Aetrix Electronics and suitable for notebook computer power, server CPU core rails, DDR memory I/O supplies, and industrial FPGA core power requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for ISL95210HRZ-T 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. Renesas is a global semiconductor leader focused on embedded solutions for automotive, industrial, and data infrastructure markets.
The ISL95210HRZ-T belongs to Renesas' integrated FET buck regulator product line, engineered for high-efficiency, low-noise, and compact point-of-load power delivery in portable and thermally constrained computing platforms.
FAQ
What is the operating temperature range for the ISL95210HRZ-T?
The ISL95210HRZ-T is specified for operation from -10°C to +100°C ambient temperature, with a maximum junction temperature of +125°C. Its thermal resistance (θJA = 40°C/W) and exposed thermal pad design enable full 10A output at +90°C ambient without airflow-making it suitable for sealed notebook and industrial enclosures.
Does the ISL95210HRZ-T require external compensation components?
No, the ISL95210HRZ-T uses Renesas' patented R4™ hysteretic control architecture, which eliminates the need for external compensation components. This simplifies design, reduces BOM count, and ensures stable operation across a wide range of output capacitors and inductors without tuning.
How is output voltage programmed on the ISL95210HRZ-T?
Output voltage is programmed using the VSEL0 and VSEL1 pins, which configure an internal DAC to select one of nine preset values (0.60V to 1.80V). A resistor divider may optionally fine-tune VOUT within ±5% of the DAC value, but the DAC method is preferred for accuracy and simplicity in most ISL95210HRZ-T implementations.
What protection features does the ISL95210HRZ-T include?
The ISL95210HRZ-T integrates valley overcurrent protection (10–14A trip), overvoltage (112–120% VDAC), undervoltage (81–87% VDAC), overtemperature shutdown (150°C), and soft-discharge during shutdown. These features prevent damage during fault conditions and support robust system-level power management.
Can the ISL95210HRZ-T operate with a 3.3V input supply?
Yes-the ISL95210HRZ-T supports input voltages from 2.97V to 5.5V, making it fully compatible with 3.3V intermediate bus architectures. However, PVCC must remain at 5V ±10%, so a dedicated 5V bias rail or LDO is required when VIN is 3.3V to ensure proper gate drive and internal biasing.
ISL95210HRZ-T 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:
- -10°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-QFN (6x4)
ISL95210HRZ-T FAQ
1.How can I place an order for ISL95210HRZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL95210HRZ-T 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 ISL95210HRZ-T reliable?
The price and inventory of ISL95210HRZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL95210HRZ-T is usually 5 days.
3.What payment methods are accepted for ISL95210HRZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL95210HRZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL95210HRZ-T?
ISL95210HRZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL95210HRZ-T 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 ISL95210HRZ-T?
For technical support, including ISL95210HRZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL95210HRZ-T requirements.
6.How does Aetrix verify that ISL95210HRZ-T is sourced from the original manufacturer or authorized distributors?
All ISL95210HRZ-T 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 ISL95210HRZ-T meets industry standards.
7.What is the process for return or replacement of ISL95210HRZ-T?
All ISL95210HRZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL95210HRZ-T, 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 ISL95210HRZ-T part is unused and in its original packaging.
Return procedure for ISL95210HRZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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