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Renesas ISL91211AIKZT7AR5874
- Part No.:
- ISL91211AIKZT7AR5874
- Manufacturer:
- Renesas
- Package:
- 35-BGA
- Datasheet:
-
ISL91211AIKZT7AR5874.pdf
- Description:
- IC REG BUCK PROG TRPL 35BGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,051
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Product details
Overview
ISL91211AIKZT7AR5874 from Renesas is a triple-output, 4-phase programmable Power Management IC (PMIC) with 2+1+1 phase configuration, delivering up to 5A per phase across three regulated outputs (VOUT1–VOUT3). It integrates synchronous buck controllers with integrated low-RDS(ON) MOSFETs (32 mΩ HS / 17.5 mΩ LS), operates at 2 MHz switching frequency, and supports I²C/SPI programmability for dynamic voltage scaling (DVS) in industrial FPGA and computing power rails.
For engineers reviewing the ISL91211AIKZT7AR5874 datasheet, ISL91211AIKZT7AR5874 pinout, ISL91211AIKZT7AR5874 application, or ISL91211AIKZT7AR5874 equivalent, key selection criteria include its triple-output reconfigurable phase architecture, ±0.7% system output accuracy with remote sensing, 3 mV/µs DVS slew rate, and 4.70 mm × 6.30 mm 35-ball TFBGA package with 0.8 mm pitch.
Technical Context
The ISL91211AIKZT7AR5874 implements Renesas' proprietary Rapid Robust Ripple Regulator (R5) control architecture, enabling ultra-fast transient response (>50 A/µs per phase), seamless DCM/CCM transitions, and no external compensation. Its four independent buck controllers are software-reconfigurable into a 2+1+1 phase topology supporting VOUT1 (dual-phase), VOUT2 (single-phase), and VOUT3 (single-phase).
It features four MPIOs and three GPIOs supporting multiple pin modes-including I²C clock/data, PGOOD outputs, hardware DVS inputs, and SPI interface-configured via factory-programmable IO_PINMODE register. The device includes comprehensive protection: overvoltage/undervoltage, overcurrent (±10% tolerance), overtemperature (143–162°C shutdown), and short-circuit detection with fault reporting via INT pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Configuration | Triple output (2+1+1 phase): VOUT1 = dual-phase, VOUT2/VOUT3 = single-phase each |
| Max Output Current per Phase | 5 A - enables high-current rail design without external current sharing |
| Switching Frequency | 2 MHz - allows use of compact 220 nH inductors and reduces solution footprint |
| Output Voltage Range | 0.3 V to 2.0 V (I²C-programmable in 1.2–2.0 mV steps) - supports core voltage scaling for modern FPGAs/SoCs |
| System Accuracy | ±0.7% (–10°C to +85°C) with remote sensing - ensures tight regulation under load and PCB trace resistance |
| Control Architecture | Renesas R5 regulator - eliminates need for external compensation components and guarantees stability across load/transient conditions |
| Protection Features | UV/OV/OC/OT/short-circuit detection with interrupt reporting - enables autonomous fault recovery in unattended systems |
Pinout & Package
Package: 4.70 mm × 6.30 mm, 35-ball Thin Fine-Pitch Ball Grid Array (TFBGA), 0.8 mm pitch, RoHS-compliant, MSL3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PVIN_A, PVIN_B, PVIN_C, PVIN_D | Power input for phases A–D | Independent high-current supply pins enable optimized layout and thermal separation per phase |
| PH_A, PH_B, PH_C, PH_D | Switching node outputs | Direct connection points to external inductors; PH_A/B/C/D map to VOUT3/VOUT2/VOUT1/VOUT1 respectively in 2+1+1 config |
| VOUT1, VOUT2, VOUT3 | Output voltage sense inputs | Remote feedback inputs for closed-loop regulation; VOUT4 and RTN4 are shorted to GND for ISL91211AIK variant |
| RTN1, RTN2, RTN3 | Remote ground sense inputs | Enable Kelvin sensing to reject PCB IR drop; RTN1 pairs with VOUT1, etc. |
| MPIO0–MPIO3, GPIO0–GPIO2 | Multi-purpose I/O and general-purpose I/O | Configurable as I²C/SPI, PGOOD, DVS, or enable signals - supports flexible system-level control without extra logic |
| EN, INT, WDOG_RST | Chip enable, interrupt, watchdog reset | Standard PMIC control interface: EN asserts all regulators; INT signals faults; WDOG_RST resets output voltages to defaults |
Key Features
| Feature | Design Value |
|---|---|
| Reconfigurable 4-phase architecture | Supports 2+1+1 phase assignment for optimal current distribution across three outputs - improves thermal balance and efficiency vs fixed topologies |
| Integrated MOSFETs with low RDS(ON) | 32 mΩ (HS) / 17.5 mΩ (LS) - reduces conduction loss and eliminates external FET selection/layout complexity |
| I²C/SPI programmability | Full register access for output voltage, DVS timing, sequencing, and fault thresholds - enables runtime adaptation in field-deployed systems |
| Dynamic Voltage Scaling (DVS) | 3 mV/µs controlled slew rate with independent per-output DVS - meets strict SoC/FPGA core voltage transition requirements without overshoot |
| Proprietary R5 control loop | No external compensation required - simplifies design validation and guarantees stability across temperature, aging, and component tolerances |
| Comprehensive fault protection | Dedicated UV/OV/OC/OT detection with latched or auto-retry behavior - prevents damage during brown-out, surge, or thermal overload events |
Applications
| Industrial FPGA Power Delivery | High-Density Computing Server Rails |
|---|---|
|
Use Scenario: Powering Xilinx Kintex or Intel Arria FPGA core, auxiliary, and I/O banks in programmable logic controllers and vision systems. IC Role / Device Role / Timing Role: Triple-output PMIC providing independently sequenced, dynamically scaled voltages (e.g., 0.85 V core, 1.2 V AUX, 1.8 V I/O) with <1.4 ms boot-up time. Use Value: Eliminates discrete DC/DC converters and sequencing ICs; achieves ±0.7% accuracy under 10 A load step with <±35 mV transient deviation. |
Use Scenario: Supplying CPU/GPU core, memory, and PCIe switch rails in compact edge servers and network appliances. IC Role / Device Role / Timing Role: Configured as 2+1+1 phase to deliver 10 A on VOUT1 (core), 5 A on VOUT2 (memory), and 5 A on VOUT3 (I/O) from single IC. Use Value: Reduces board area by 40% vs discrete solutions; 2 MHz operation enables 220 nH inductors, cutting BOM cost and height. |
| Home Gateway SoC Power | Industrial Embedded Controller |
|
Use Scenario: Powering multi-core ARM-based SoCs (e.g., NXP i.MX8, MediaTek MT7621) in broadband gateways and smart home hubs. IC Role / Device Role / Timing Role: Delivers 0.9 V core, 1.1 V GPU, and 3.3 V I/O from single PMIC with programmable power-on reset and watchdog integration. Use Value: I²C DVS enables real-time voltage/frequency scaling; low IQ (<1 µA in shutdown) extends battery backup runtime. |
Use Scenario: Providing tightly regulated, fault-protected power to ARM Cortex-M7/M4 microcontrollers and analog front-ends in PLCs and motor drives. IC Role / Device Role / Timing Role: Supplies 3.3 V I/O, 1.2 V digital, and 1.8 V analog rails with independent UV/OV monitoring and interrupt-driven fault logging. Use Value: Remote sensing (RTN1–RTN3) maintains regulation despite PCB voltage drop; -40°C to +85°C operation ensures reliability in harsh environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple-output PMIC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL91211BIKZ-T | Quad-output (1+1+1+1 phase); identical package, pinout, and register map but VOUT4 enabled and RTN4 functional | Required when fourth independent rail (e.g., DDR termination, PHY bias) is needed; not drop-in for ISL91211AIKZT7AR5874 designs | Select ISL91211BIKZ-T only if quad-rail support is mandatory; verify VOUT4 routing and RTN4 grounding in layout |
| MP2964GQ-Z | Triple-output, 4-phase PMIC with 3.3 V fixed LDO, different I²C address, no R5 control, requires external compensation | Suitable for cost-sensitive consumer applications; lacks remote sensing and fast transient capability of ISL91211AIKZT7AR5874 | Choose MP2964GQ-Z only for non-critical loads where ±2% accuracy and slower transient response are acceptable |
Compared with ISL91211BIKZ-T, the ISL91211AIKZT7AR5874 saves board space by eliminating unused VOUT4 circuitry and simplifies firmware by removing fourth-rail configuration overhead; versus MP2964GQ-Z, it delivers tighter regulation, faster load step recovery, and reduced design validation effort due to compensation-free R5 architecture.
Availability
ISL91211AIKZT7AR5874 is available at Aetrix Electronics and suitable for industrial FPGA power delivery, high-density computing server rails, and home gateway SoC power requiring stable component supply, long-term lifecycle assurance, and full technical documentation support.
Supply support for ISL91211AIKZT7AR5874 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, and connectivity solutions for industrial, automotive, and infrastructure markets.
The ISL91211AIKZT7AR5874 belongs to Renesas' high-efficiency, multi-phase PMIC product line designed specifically for FPGA, SoC, and processor power delivery in space-constrained, thermally demanding industrial and computing applications.
FAQ
What is the maximum output current supported by ISL91211AIKZT7AR5874 per phase?
The ISL91211AIKZT7AR5874 supports up to 5 A peak current per phase across all four integrated buck controllers. In its default 2+1+1 configuration, this enables 10 A on VOUT1 (dual-phase) and 5 A each on VOUT2 and VOUT3 (single-phase), verified under 2.7 V to 5.5 V input and 2 MHz switching conditions per the FN9344 datasheet.
Does ISL91211AIKZT7AR5874 require external compensation components?
No, the ISL91211AIKZT7AR5874 uses Renesas' proprietary Rapid Robust Ripple Regulator (R5) control architecture, which eliminates the need for external compensation components. This is confirmed in the datasheet Section 1 Overview and Section 2.4 Analog Specifications, where stability is guaranteed across temperature, load, and component variation without added capacitors or resistors.
How is dynamic voltage scaling (DVS) implemented on ISL91211AIKZT7AR5874?
ISL91211AIKZT7AR5874 supports I²C/SPI-programmed DVS with a controlled slew rate of 3 mV/µs, as specified in Table 2.4 (Parameter VDVS). Each output (VOUT1–VOUT3) can be scaled independently via register writes, and pin-mode configurations (e.g., IO_PINMODE = 0x7) allow hardware-triggered DVS using dedicated MPIOs - all documented in Sections 5.4–5.5 of FN9344 Rev.1.02.
What package type and dimensions does ISL91211AIKZT7AR5874 use?
The ISL91211AIKZT7AR5874 uses a 4.70 mm × 6.30 mm, 35-ball Thin Fine-Pitch Ball Grid Array (TFBGA) package with 0.8 mm pitch, as stated in Table 1 (Ordering Information) and Package Outline Drawing (Page 53) of FN9344 Rev.1.02. It is RoHS-compliant and moisture sensitivity level (MSL) 3.
Can ISL91211AIKZT7AR5874 support remote voltage sensing?
Yes, ISL91211AIKZT7AR5874 supports true remote voltage sensing via dedicated RTN1, RTN2, and RTN3 pins - one per output - enabling Kelvin connections to minimize regulation error from PCB trace resistance. This is explicitly defined in Pin Descriptions (Page 6–7) and contributes to the ±0.7% system accuracy specification across –10°C to +85°C.
ISL91211AIKZT7AR5874 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 35-BGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Programmable
- Number of Outputs:
- 3
- 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
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 35-BGA (4.7x6.3)
ISL91211AIKZT7AR5874 FAQ
1.How can I place an order for ISL91211AIKZT7AR5874 through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL91211AIKZT7AR5874 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 ISL91211AIKZT7AR5874 reliable?
The price and inventory of ISL91211AIKZT7AR5874 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL91211AIKZT7AR5874 is usually 5 days.
3.What payment methods are accepted for ISL91211AIKZT7AR5874?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL91211AIKZT7AR5874 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL91211AIKZT7AR5874?
ISL91211AIKZT7AR5874 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL91211AIKZT7AR5874 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 ISL91211AIKZT7AR5874?
For technical support, including ISL91211AIKZT7AR5874 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL91211AIKZT7AR5874 requirements.
6.How does Aetrix verify that ISL91211AIKZT7AR5874 is sourced from the original manufacturer or authorized distributors?
All ISL91211AIKZT7AR5874 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 ISL91211AIKZT7AR5874 meets industry standards.
7.What is the process for return or replacement of ISL91211AIKZT7AR5874?
All ISL91211AIKZT7AR5874 units undergo pre-shipment inspection (PSI). If there is an issue with ISL91211AIKZT7AR5874, 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 ISL91211AIKZT7AR5874 part is unused and in its original packaging.
Return procedure for ISL91211AIKZT7AR5874:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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