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Renesas ISL91211BIKZT7AR5875
- Part No.:
- ISL91211BIKZT7AR5875
- Manufacturer:
- Renesas
- Package:
- 35-TFBGA
- Datasheet:
-
ISL91211BIKZT7AR5875.pdf
- Description:
- IC REG BUCK PROG QUAD 35TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:212
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Product details
Overview
ISL91211BIKZT7AR5875 from Renesas is a quad-output, four-phase programmable Power Management IC (PMIC) with integrated 32mΩ high-side and 17.5mΩ low-side MOSFETs, 2MHz switching frequency, ±0.7% system output accuracy, and independent Dynamic Voltage Scaling per output. It delivers up to 5A per phase for industrial FPGA and computing server power rails requiring tight transient response and compact solution size.
For engineers reviewing the ISL91211BIKZT7AR5875 datasheet, ISL91211BIKZT7AR5875 pinout, ISL91211BIKZT7AR5875 application, or ISL91211BIKZT7AR5875 equivalent, key selection considerations include its 4× single-phase configuration, 35-ball 4.70mm×6.30mm TFBGA package, I²C/SPI programmability, R5 control architecture enabling >50A/µs load transient capability, and remote voltage sensing across all four outputs.
Technical Context
The ISL91211BIKZT7AR5875 implements Renesas' proprietary Rapid Robust Ripple Regulator (R5) control architecture, eliminating external compensation while delivering ultra-fast transient response and seamless DCM/CCM transitions. Its four independent buck controllers support reconfigurable 1+1+1+1 phase assignment per output, with each phase capable of 5A peak current and 2MHz fixed-frequency operation.
It integrates four synchronous buck power stages with low ON-resistance MOSFETs, supports dual communication protocols (I²C up to 3.4MHz and SPI up to 26MHz), and provides comprehensive protection including overvoltage, undervoltage, overcurrent, and thermal shutdown at 143–162°C with 55°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Configuration | Quad output, four independent single-phase buck regulators (1+1+1+1) |
| Switching Frequency | 2MHz fixed frequency - enables use of small 220nH inductors and reduces EMI filtering burden |
| Per-Phase Current Capability | 5A peak - supports high-current digital loads like FPGAs and SoCs without external power stage augmentation |
| Output Voltage Range | 0.3V to 2.0V (I²C programmable in 1.2–2.0mV steps) - covers core, I/O, and auxiliary rail requirements |
| System Accuracy | ±0.7% over -40°C to +85°C with remote sensing - ensures stable voltage regulation under load and thermal variation |
| Control Architecture | Renesas R5 (Rapid Robust Ripple Regulator) - eliminates external compensation components and guarantees stability across all operating conditions |
| Protection Features | UV/OV/OC/OT with short-circuit protection - autonomous fault handling without host intervention |
Pinout & Package
ISL91211BIKZT7AR5875 uses a 4.70mm × 6.30mm, 35-ball TFBGA package with 0.8mm pitch, RoHS-compliant, MSL3 rated. Thermal resistance θJA = 47°C/W, θJC = 3°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PVIN_A, PVIN_B, PVIN_C, PVIN_D | Power input for phases A–D | Independent high-voltage inputs per phase - allows flexible input rail partitioning and noise isolation |
| PH_A, PH_B, PH_C, PH_D | Switching node outputs | Direct connection to external inductor - defines power stage topology and requires careful layout for EMI control |
| VOUT1–VOUT4 | Output voltage sense inputs | Remote feedback points - enable accurate regulation at load point despite PCB IR drop |
| RTN1–RTN4 | Remote ground sense inputs | Paired with VOUTx to form Kelvin sense loop - critical for maintaining ±0.7% accuracy under dynamic load |
| MPIO0–MPIO3, GPIO0–GPIO2 | Multi-purpose and general-purpose I/O | Configurable as I²C/SPI, PGOOD, DVS, or enable pins - supports flexible system-level control without additional logic |
| EN, WDOG_RST, INT | Control and status signals | Master enable, watchdog reset, and interrupt output - provide hardware-level sequencing and fault reporting |
Key Features
| Feature | Design Value |
|---|---|
| Independent Dynamic Voltage Scaling (DVS) | Each output supports programmable slew rate (3mV/µs) and voltage step control - enables precise power-state transitions for CPU/FPGA DVFS |
| R5 Control Architecture | No external compensation required - reduces BOM count, board area, and design validation effort |
| Ultra-Fast Load Transient Response | Supports >50A/µs per phase load steps with <±40mV deviation - maintains core voltage integrity during burst-mode processing |
| I²C and SPI Dual Interface | 3.4MHz I²C and 26MHz SPI - enables high-speed configuration and telemetry in real-time power management systems |
| Integrated Low-RDS(ON) MOSFETs | 32mΩ HS / 17.5mΩ LS - achieves 92.2% efficiency at 3.8VIN/1.8VOUT, reducing thermal load and heatsink requirements |
Applications
| Industrial FPGA Power | Computing Server VR |
|---|---|
|
Use Scenario: Powering Xilinx Kintex or Intel Arria FPGA core, AUX, and transceiver rails in programmable logic controllers and vision systems. IC Role / Device Role / Timing Role: Quad-output PMIC providing independently sequenced, dynamically scaled voltages with remote sensing for FPGA VCCINT, VCCAUX, VCCIO, and GTY rails. Use Value: Eliminates need for four discrete DC/DC converters; R5 control ensures sub-50µs recovery from 5A load steps, preserving FPGA timing margins. |
Use Scenario: Delivering tightly regulated core, memory, and I/O voltages to multi-core x86 processors and DDR4/5 memory subsystems in 1U rack servers. IC Role / Device Role / Timing Role: Primary VR for CPU VDD, SOC VDD, memory VDDQ, and platform controller hub (PCH) rails with synchronized DVS and fault reporting. Use Value: 2MHz operation enables compact 220nH inductors; ±0.7% accuracy prevents derating of processor voltage tolerance, improving performance headroom. |
| Home Gateway SoC | Industrial Edge AI Module |
|
Use Scenario: Powering ARM-based SoCs (e.g., NXP i.MX8, MediaTek MT7621) in broadband gateways, set-top boxes, and smart home hubs. IC Role / Device Role / Timing Role: Single-chip solution for SoC core, GPU, DDR, and peripheral I/O rails with programmable startup sequencing and low-IQ sleep modes. Use Value: Diode emulation and pulse-skipping at light load extend battery backup runtime; I²C interface enables firmware-controlled rail optimization. |
Use Scenario: Supplying heterogeneous compute modules (e.g., NVIDIA Jetson Orin, Qualcomm QCS6490) in ruggedized edge AI appliances for factory automation and predictive maintenance. IC Role / Device Role / Timing Role: High-reliability quad-rail PMIC with thermal shutdown (143–162°C), overvoltage protection (±35mV), and robust 4.7×6.3mm TFBGA packaging. Use Value: Integrated MOSFETs and R5 control reduce component count by >60% vs. discrete solutions; 35-ball BGA simplifies routing in dense, thermally constrained layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-output PMIC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL91211AIKZ-T | Triple-output (2+1+1 phase) variant with identical pinout, package, and register map but only three regulated outputs | Suitable for designs requiring fewer rails (e.g., dual-core SoC + memory), not quad-rail FPGA or server platforms | Select ISL91211AIKZ-T only when fourth output is unnecessary - avoids over-specification and saves cost without layout change |
| MP2964GQ-Z | Quad-output PMIC with 4-phase interleaving, 1.2MHz max frequency, and no integrated MOSFETs (external power stage required) | Targets higher-power (>10A/rail) applications where thermal management favors discrete MOSFETs and custom inductor selection | Choose MP2964GQ-Z if system requires >5A per rail or custom power stage optimization; ISL91211BIKZT7AR5875 offers lower BOM count and smaller footprint for ≤5A/rail |
Compared with ISL91211AIKZ-T, ISL91211BIKZT7AR5875 adds a fourth independent buck regulator without increasing package size or pin count, enabling true quad-rail flexibility; versus MP2964GQ-Z, it trades external power stage configurability for integration, reduced layout complexity, and guaranteed 2MHz operation with integrated R5 control.
Availability
ISL91211BIKZT7AR5875 is available at Aetrix Electronics and suitable for industrial FPGA power, computing server VR, and home gateway SoC applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for ISL91211BIKZT7AR5875 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 is a global semiconductor leader specializing in microcontrollers, analog, power management, and connectivity solutions for industrial, automotive, and computing markets.
The ISL91211BIKZT7AR5875 belongs to Renesas' high-efficiency, multi-rail PMIC product line designed specifically for FPGA, SoC, and server applications demanding precision regulation, fast transient response, and software-defined power sequencing.
FAQ
What is the maximum output current per phase supported by the ISL91211BIKZT7AR5875?
The ISL91211BIKZT7AR5875 supports up to 5A peak current per phase across all four buck regulators. This rating applies under recommended operating conditions (2.7V–5.5V input, TA = –40°C to +85°C) and is validated with integrated 32mΩ high-side and 17.5mΩ low-side MOSFETs. The device maintains this capability in both continuous conduction mode (CCM) and diode emulation mode at light loads.
Does the ISL91211BIKZT7AR5875 require external compensation components?
No, the ISL91211BIKZT7AR5875 does not require external compensation components. Its proprietary Rapid Robust Ripple Regulator (R5) control architecture provides inherent stability across all operating conditions, eliminating the need for external RC networks or type-II/type-III compensators typically required in voltage-mode or current-mode controllers.
Can the ISL91211BIKZT7AR5875 be configured for different output voltage sequences?
Yes, the ISL91211BIKZT7AR5875 supports programmable power sequencing via I²C or SPI. Its register map includes dedicated sequencing control bits that define startup/shutdown order, delay intervals, and inter-rail dependencies - enabling precise alignment with FPGA or SoC power-up requirements without external timers or logic.
What communication interfaces does the ISL91211BIKZT7AR5875 support?
The ISL91211BIKZT7AR5875 supports both I²C (up to 3.4MHz) and SPI (up to 26MHz) interfaces. Pin mode configuration (via IO_PINMODE register) determines active protocol: default mode 0x0 enables simultaneous I²C and SPI access, while other modes assign pins to PGOOD, DVS, or enable functions - all configurable without hardware changes.
How does the ISL91211BIKZT7AR5875 handle overtemperature conditions?
The ISL91211BIKZT7AR5875 features integrated overtemperature protection with a shutdown threshold of 143–162°C and 55°C hysteresis. When junction temperature exceeds the threshold, all buck regulators disable and the INT pin asserts. Recovery occurs automatically after temperature falls below (threshold – 55°C), ensuring safe thermal cycling without host intervention.
ISL91211BIKZT7AR5875 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 35-TFBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Programmable
- Number of Outputs:
- 4
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.3V
- Voltage - Output (Max):
- 2V
- Current - Output:
- 5A, 5A, 5A, 5A
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 35-TFBGA (4.7x6.3)
ISL91211BIKZT7AR5875 FAQ
1.How can I place an order for ISL91211BIKZT7AR5875 through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL91211BIKZT7AR5875 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 ISL91211BIKZT7AR5875 reliable?
The price and inventory of ISL91211BIKZT7AR5875 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL91211BIKZT7AR5875 is usually 5 days.
3.What payment methods are accepted for ISL91211BIKZT7AR5875?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL91211BIKZT7AR5875 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL91211BIKZT7AR5875?
ISL91211BIKZT7AR5875 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL91211BIKZT7AR5875 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 ISL91211BIKZT7AR5875?
For technical support, including ISL91211BIKZT7AR5875 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL91211BIKZT7AR5875 requirements.
6.How does Aetrix verify that ISL91211BIKZT7AR5875 is sourced from the original manufacturer or authorized distributors?
All ISL91211BIKZT7AR5875 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 ISL91211BIKZT7AR5875 meets industry standards.
7.What is the process for return or replacement of ISL91211BIKZT7AR5875?
All ISL91211BIKZT7AR5875 units undergo pre-shipment inspection (PSI). If there is an issue with ISL91211BIKZT7AR5875, 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 ISL91211BIKZT7AR5875 part is unused and in its original packaging.
Return procedure for ISL91211BIKZT7AR5875:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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