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Renesas ISL95210IRZ-T
- Part No.:
- ISL95210IRZ-T
- Manufacturer:
- Renesas
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
ISL95210IRZ-T.pdf
- Description:
- IC REG BUCK PROG 10A 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,953
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Product details
Overview
ISL95210IRZ-T from Renesas (formerly Intersil) is a high-efficiency, integrated 10A synchronous buck regulator with R4™ current-mode hysteretic control, delivering regulated output from 2.97V–5.5V input to programmable 0.60V–1.80V outputs with ±0.75% accuracy over –40°C to +100°C. It features internal 14.8mΩ high-side PMOS and 3.8mΩ low-side NMOS FETs, operates up to 95% efficiency at 10A, and supports full-power operation in +90°C ambient without airflow - ideal for notebook CPU core power and point-of-load applications.
For engineers reviewing the ISL95210IRZ-T datasheet, ISL95210IRZ-T pinout, ISL95210IRZ-T application, or ISL95210IRZ-T equivalent, this page delivers verified technical context, confirmed pin functions, real-world load-transient performance data (50A/µs), validated voltage margining behavior (±10%/±15%/±20%), and accurate thermal derating curves across airflow conditions.
Technical Context
The ISL95210IRZ-T implements Renesas' patented R4™ modulator architecture: a synthetic-current-based hysteretic control scheme that eliminates external compensation while maintaining stability across wide output filter variations (LOUT/COUT). It generates PWM edges by comparing synthetic current against an error-amplifier output and dynamically adjusting hysteretic window width during transients - enabling sub-µs response without integrator delay.
Its digital control interface includes tri-state pins for switching frequency selection (400/533/800kHz), CCM/DCM/audio mode selection (FCCM), DAC-based VOUT programming (VSEL0/VSEL1), and precision voltage margining (MSEL/MPCT), all operating with defined logic thresholds (e.g., EN rising threshold = 2.0V, FSET floating voltage = 1.85–2.15V) and compatible with 5V ±10% PVCC bias.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 10A continuous - supports full-rated load at +90°C ambient with no forced airflow. |
| Input Voltage Range | 2.97V to 5.5V - compatible with 3.3V and 5V system rails; VIN must be ≥2.97V for regulation. |
| Output Voltage Accuracy | ±0.75% over –40°C to +100°C - ensures tight regulation for CPU/GPU core supplies under thermal stress. |
| Switching Frequency | 400/533/800kHz selectable via FSET pin - higher frequencies enable smaller inductors but increase switching loss. |
| Internal MOSFET RDS(on) | High-side: 14.8mΩ typ; Low-side: 3.8mΩ typ - enables >95% peak efficiency and reduces external component count. |
| Protection Features | Valley overcurrent trip (10–14A), overvoltage (112–120% VDAC), undervoltage (81–87% VDAC), thermal shutdown (150°C) - autonomous fault handling without host intervention. |
| Soft-Start Slew Rate | 2.5mV/µs - enables precise inrush current prediction (e.g., 0.825A for 330µF output cap) and controlled power-up sequencing. |
Pinout & Package
ISL95210IRZ-T uses a thermally enhanced 32-lead 6mm × 4mm QFN package with exposed thermal pad (T-PAD) connected to PGND. The package supports JEDEC-standard Pb-free reflow and achieves θJA = 40°C/W and θJC = 4°C/W under typical board layout conditions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FCCM | Mode selection input | Logic level sets CCM-only (VCC), DCM-enabled (AGND), or audio mode (floating) - directly controls light-load efficiency strategy. |
| FSET | Frequency programming input | Tri-state pin selects 400kHz (GND), 533kHz (float), or 800kHz (VCC) - determines trade-off between size, efficiency, and EMI. |
| VSEL0 / VSEL1 | DAC MSB/LSB inputs | Set 9 preset VOUT values (0.60V–1.80V) without external resistors - eliminates divider tolerance errors and simplifies BOM. |
| MSEL / MPCT | Margining control inputs | Enable ±10%/±15%/±20% VOUT margining for production test - MSEL selects direction (up/down/nominal); MPCT sets magnitude. |
| PHASE (pins 4–10) | Power switch node | Single switching node shared across 7 parallel pins - requires low-inductance PCB routing to minimize ringing and EMI. |
| PGND (pins 12,13,19–23) | Power ground return | Multiple dedicated PGND pins reduce ground bounce and improve current sharing - must be shorted on PCB with low-impedance copper. |
| PVCC (pins 14,15) | Gate driver supply | 5V ±10% supply for internal FET drivers - decoupled separately from VIN when VIN < 4.5V to ensure gate drive integrity. |
| VIN (pins 16–18) | Main input power | 2.97V–5.5V input rail - bypassed with ≥10µF ceramic capacitor to PGND; all VIN pins must be electrically common. |
| PGOOD / PG_IN | Power-good signaling | CMOS PGOOD output referenced to PG_IN voltage - allows flexible logic-level compatibility (e.g., 1.8V, 3.3V, 5V) for system sequencing. |
| T-PAD | Thermal & power ground | Exposed metal pad tied to PGND - requires ≥6 thermal vias to inner PGND plane for effective heat extraction and reliability. |
Key Features
| Feature | Design Value |
|---|---|
| R4™ Control Architecture | Eliminates external compensation components while maintaining loop stability across 10:1 COUT/LOUT variations - reduces design cycle time and bill-of-materials cost. |
| Programmable Light-Load Efficiency | FCCM pin enables seamless transition between CCM (best transient response), DCM (highest light-load efficiency), and audio mode (ultra-low-noise operation). |
| Digital Output Voltage Programming | VSEL0/VSEL1 select nine factory-trimmed VOUT values (0.60V–1.80V) with ±0.75% accuracy - avoids resistor-divider drift and improves long-term voltage stability. |
| Output Voltage Margining | MSEL/MPCT pins support ±10%/±15%/±20% VOUT adjustment for end-of-line burn-in testing - implemented with same soft-start slew rate (2.5mV/µs) for predictable timing. |
| Comprehensive Fault Protection | Integrated valley overcurrent, overvoltage, undervoltage, and thermal shutdown with auto-recovery - prevents damage during abnormal operating conditions without external circuitry. |
Applications
| Notebook CPU Core Power | Point-of-Load Server VRM |
|---|---|
|
Use Scenario: Regulating 1.2V/10A core voltage for Intel Core i7 processors in ultrabook platforms with strict thermal envelope constraints. IC Role / Device Role / Timing Role: Primary synchronous buck controller with integrated FETs, providing fast transient response to dynamic CPU load changes (e.g., 50A/µs). Use Value: Full 10A output capability at +90°C ambient without airflow enables fanless or low-noise thermal designs while maintaining ±0.75% VOUT accuracy. |
Use Scenario: Generating 0.9V/8A GPU memory rail in compact server mezzanine cards where board space and thermal dissipation are limited. IC Role / Device Role / Timing Role: High-density DC/DC converter with 6mm×4mm QFN footprint and minimal external components (only 4 required). Use Value: Small solution size and 95% peak efficiency reduce PCB area and heat generation - critical for multi-rail, high-power density systems. |
| Industrial FPGA I/O Bank Supply | Automotive ADAS Domain Controller Core Rail |
|
Use Scenario: Delivering 1.0V/6A to Xilinx Artix-7 FPGA I/O banks requiring precise voltage tracking and margining for production test. IC Role / Device Role / Timing Role: Digitally programmable regulator with MSEL/MPCT-controlled voltage margining for automated functional test and burn-in. Use Value: ±20% margining range and 2.5mV/µs slew rate allow deterministic voltage stress testing without external DAC or sequencer. |
Use Scenario: Powering 1.1V/7A Cortex-A72 cores in automotive ADAS domain controllers operating across –40°C to +105°C junction temperature. IC Role / Device Role / Timing Role: Automotive-grade buck regulator qualified to –40°C to +100°C ambient with robust overtemperature protection (150°C shutdown, 125°C recovery). Use Value: Guaranteed ±0.75% output accuracy over full industrial temperature range ensures reliable processor operation under extreme environmental conditions. |
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 |
|---|---|---|---|
| MP2315DJ-LF-Z | 6A rated, 2.5V–6V input, 3mm×3mm QFN, no integrated margining or DAC programming - requires external resistor divider. | Suitable for cost-sensitive, lower-current applications where digital control and precision margining are not required. | Select MP2315DJ-LF-Z only when output current ≤6A and voltage programming flexibility is secondary to footprint minimization. |
| TPS546D24RQV | 15A rated, 3.0V–18V input, PMBus interface, 6mm×6mm QFN, supports telemetry and dynamic voltage scaling - no R4™ architecture. | Targeted at high-end server and telecom applications requiring digital monitoring, sequencing, and adaptive voltage positioning. | Choose TPS546D24RQV when system-level digital control, telemetry, and >10A current capability outweigh the need for ultra-fast analog transient response. |
Compared with MP2315DJ-LF-Z and TPS546D24RQV, the ISL95210IRZ-T uniquely combines 10A analog regulation, R4™-enabled sub-µs transient response, and integrated DAC/margining in a 6mm×4mm package - making it optimal for space-constrained, thermally demanding, and digitally configurable point-of-load designs where external compensation and complex digital infrastructure are undesirable.
Availability
ISL95210IRZ-T is available at Aetrix Electronics and suitable for notebook computer power, FPGA I/O bank supplies, and automotive ADAS domain controller core rails requiring stable component supply, guaranteed long-term availability, and RoHS-compliant packaging.
Supply support for ISL95210IRZ-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 is a global semiconductor leader delivering microcontrollers, analog power, and SoC solutions for automotive, industrial, and computing markets - formed through the acquisition of Intersil in 2017.
The ISL95210IRZ-T belongs to Renesas' high-efficiency integrated FET buck regulator product line, designed specifically for high-current, low-voltage point-of-load applications in portable computing and embedded systems where thermal performance, transient response, and design simplicity are critical.
FAQ
What is the maximum ambient temperature at which ISL95210IRZ-T can deliver full 10A output current without airflow?
The ISL95210IRZ-T delivers full 10A output current in +90°C ambient temperature without forced airflow, as validated on the ISL95210EVAL1Z evaluation board per Figure 23 of the datasheet. Derating begins above this temperature unless airflow (e.g., 100 LFM) is applied - at 0 LFM, maximum continuous current drops to ~8.5A at +100°C ambient.
How does the R4™ control architecture in ISL95210IRZ-T eliminate the need for external compensation components?
The ISL95210IRZ-T's R4™ architecture uses a synthetic current signal instead of measured inductor current, combined with a balanced error amplifier and dynamic hysteretic window modulation. This eliminates phase lag from traditional integrators and provides inherent stability across wide ranges of LOUT and COUT - allowing stable operation with only four external components and no compensation network.
Can ISL95210IRZ-T be used with all-ceramic output capacitors, and what design considerations apply?
Yes, ISL95210IRZ-T supports all-ceramic output capacitors, but stability requires careful attention to COUT value and ESR. Equation 4 in the datasheet defines the boundary condition: COUT·ESR + K·LOUT·COUT must exceed a threshold based on load step and duty cycle. For example, 120µF ceramic with 0.67mΩ ESR satisfies stability, whereas 76µF with 1mΩ ESR causes ring-back - verified in Figures 27 and 28.
What are the exact output voltage options supported by the VSEL0/VSEL1 pins on ISL95210IRZ-T?
The ISL95210IRZ-T supports nine precise DAC-programmed output voltages via VSEL0/VSEL1: 0.600V, 0.750V, 0.900V, 1.000V, 1.050V, 1.100V, 1.200V, 1.500V, and 1.800V - corresponding to binary/floating combinations defined in Table 1 of the datasheet. No other voltages are natively supported without external resistor dividers.
Does ISL95210IRZ-T support pre-biased start-up, and how is it enabled?
Yes, ISL95210IRZ-T supports pre-biased start-up, as shown in Figure 7 of the datasheet. It is enabled automatically when the VOUT pin detects a non-zero voltage at power-on - the device soft-starts from the existing rail voltage rather than discharging it first. No external configuration is required; behavior is inherent to the R4™ modulator architecture.
ISL95210IRZ-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:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-QFN (6x4)
ISL95210IRZ-T FAQ
1.How can I place an order for ISL95210IRZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL95210IRZ-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 ISL95210IRZ-T reliable?
The price and inventory of ISL95210IRZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL95210IRZ-T is usually 5 days.
3.What payment methods are accepted for ISL95210IRZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL95210IRZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL95210IRZ-T?
ISL95210IRZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL95210IRZ-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 ISL95210IRZ-T?
For technical support, including ISL95210IRZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL95210IRZ-T requirements.
6.How does Aetrix verify that ISL95210IRZ-T is sourced from the original manufacturer or authorized distributors?
All ISL95210IRZ-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 ISL95210IRZ-T meets industry standards.
7.What is the process for return or replacement of ISL95210IRZ-T?
All ISL95210IRZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL95210IRZ-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 ISL95210IRZ-T part is unused and in its original packaging.
Return procedure for ISL95210IRZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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