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Renesas ISL91302BIKZT7AR5856
- Part No.:
- ISL91302BIKZT7AR5856
- Manufacturer:
- Renesas
- Package:
- 35-TFBGA
- Datasheet:
-
ISL91302BIKZT7AR5856.pdf
- Description:
- IC REG BCK ADJ 5A SGL/DL 35TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,519
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Product details
Overview
ISL91302BIKZT7AR5856 from Renesas Electronics is a dual/single-output synchronous multiphase buck PMIC with four integrated power stages and two controllers, configurable as 4+0, 3+1, or 2+2 phase outputs. It delivers up to 5A per phase, supports 0.3V–2.0V programmable output voltage via I²C/SPI, achieves 94.7% peak efficiency at 3.8VIN/1.8VOUT, and operates from 2.5V–5.5V input. It targets CPU/GPU core power in mobile applications requiring fast transient response and compact power delivery.
For engineers reviewing the ISL91302BIKZT7AR5856 datasheet, ISL91302BIKZT7AR5856 pinout, ISL91302BIKZT7AR5856 application, or ISL91302BIKZT7AR5856 equivalent, key selection considerations include its R5 modulator-based ultra-fast transient capability (50A/µs per phase), ±0.7% system accuracy with remote sensing, OTP-programmable 2–6MHz PWM frequency, and factory-configurable output configurations across a single WLCSP package.
Technical Context
The ISL91302BIKZT7AR5856 implements Renesas' proprietary R5 modulator architecture, enabling ultra-fast load transient response without external compensation while maintaining loop stability across DCM/CCM transitions. Its dual-controller architecture allows dynamic assignment of four power stages to support 4-phase, 3+1-phase, or 2+2-phase output topologies.
It integrates low-RDS(ON) MOSFETs (23mΩ HS / 9mΩ LS), supports independent Dynamic Voltage Scaling (DVS) per output with selectable slew rates (e.g., 3mV/µs), and provides telemetry via an internal ADC for voltage, current, and temperature monitoring with auxiliary inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Configuration | Factory OTP-configurable: 4+0, 3+1, or 2+2 phase; enables flexible rail partitioning for CPU/GPU or multi-core SoC power |
| Per-Phase Output Current | 5A continuous - determines maximum scalable load per phase without derating |
| Input Voltage Range | 2.5V to 5.5V - compatible with single-cell Li-ion (3.0–4.2V) and fixed 3.3V/5V rails |
| Output Voltage Range | 0.3V to 2.0V (I²C/SPI programmable) - covers core voltages for modern mobile APs and FPGAs |
| Peak Efficiency | 94.7% at 3.8VIN/1.8VOUT - minimizes thermal load and extends battery runtime in portable designs |
| Switching Frequency | 2MHz to 6MHz (OTP programmable) - enables use of small inductors (e.g., 220nH) and reduces solution footprint |
| System Accuracy | ±0.7% with remote voltage sensing - ensures tight regulation under PCB IR drop and high-current conditions |
Pinout & Package
ISL91302BIKZT7AR5856 uses a 2.551mm × 3.670mm, 54-ball WLCSP package with 0.4mm pitch, optimized for ultra-compact mobile PCB layouts and high-density integration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PVIN_A, PVIN_B, PVIN_C, PVIN_D | Power stage input supplies | Dedicated high-current inputs per phase; require local bulk capacitance and low-impedance routing |
| PH_A, PH_B, PH_C, PH_D | Switching node outputs | Connect to external inductors; critical for EMI control and thermal management in multiphase layout |
| PGND_A–PGND_D | Power ground returns | Separate ground paths per phase reduce crosstalk and improve current sharing accuracy |
| VOUT1, RTN1, VOUT2, RTN2 | Remote voltage sense inputs | Enable Kelvin sensing to compensate for PCB trace resistance and maintain ±0.7% regulation accuracy |
| AVIN, AVIN_FILT, VIO | Analog and I/O supply inputs | AVIN powers internal analog circuitry; AVIN_FILT requires dedicated 1µF decoupling; VIO sets logic threshold (1.7–1.8V) |
| MPIO0–MPIO3, GPIO0–GPIO1 | Configurable digital I/O | Support SPI/I²C communication, hardware DVS control, PGOOD signaling, or ADC auxiliary inputs based on OTP pin mode |
Key Features
| Feature | Design Value |
|---|---|
| R5 Modulator Control | Enables <1µs transient response with no external compensation components, reducing BOM count and design risk |
| Integrated Power Stages | Four 5A-capable phases with 23mΩ/9mΩ HS/LS MOSFETs eliminate need for external switches and gate drivers |
| Dynamic Voltage Scaling (DVS) | Independent per-output DVS with programmable slew rate (e.g., 3mV/µs) supports real-time power state transitions in APs/FPGAs |
| Telemetry ADC | On-chip 10-bit ADC monitors output voltage, current, die temperature, and two auxiliary inputs for system health diagnostics |
| Protection Suite | Comprehensive fault handling including UV/OV/OC/OT detection, short-circuit protection, and thermal warning/shutdown with hysteresis |
Applications
| Smartphone Application Processor Core Power | FPGA Core and Auxiliary Rail Power |
|---|---|
Use Scenario: Delivering dynamically scaled core voltage (0.6–1.2V) to a high-performance mobile AP under burst workloads. IC Role / Device Role / Timing Role: Primary multiphase buck regulator configured in 3+1 mode: three phases for CPU core, one phase for GPU core. Use Value: Achieves 94.7% efficiency at 1.1V/5A and responds to 50A/µs load steps within ±25mV window, extending battery life and preventing brownouts. | Use Scenario: Providing tightly regulated 0.85V core and 1.2V auxiliary rails to a mid-range FPGA in industrial edge equipment. IC Role / Device Role / Timing Role: Dual-output PMIC in 2+2 configuration, with independent DVS control and remote sensing on both rails. Use Value: ±0.7% system accuracy ensures FPGA timing margins are maintained across temperature and load; integrated telemetry enables predictive thermal management. |
| Industrial MPU Power Supply | Human-Machine Interface (HMI) Display SoC Power |
Use Scenario: Powering a quad-core ARM-based MPU in a ruggedized HMI panel operating continuously at -40°C to +85°C. IC Role / Device Role / Timing Role: Single 4-phase output (4+0) delivering 1.0V/10A with thermal warning alert at +85°C and shutdown at +140°C. Use Value: Factory OTP configuration eliminates firmware dependency; robust R5 control maintains regulation during rapid ambient shifts and motor-induced transients. | Use Scenario: Supporting a display SoC with variable graphics workload, requiring fast voltage scaling between UI idle (0.5V) and rendering (1.0V) states. IC Role / Device Role / Timing Role: Dual-output device in 2+2 mode, using MPIO pins for hardware-triggered DVS and PGOOD monitoring. Use Value: 3mV/µs DVS slew rate enables sub-200µs voltage transitions, eliminating visual artifacts during screen refresh and animation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multiphase buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL91301B | 42-ball 6×7 WLCSP, 4A per phase, quad-output (1+1+1+1), lower current rating and smaller package | Suited for lower-power quad-rail systems (e.g., sensor hubs) where 5A/phase headroom is unnecessary | Select ISL91301B when space-constrained quad-rail operation below 4A/phase is required and 4+0 or 3+1 topology is not needed |
| ISL91211B | 54-ball 6×9 WLCSP same footprint, 5A per phase, quad-output (1+1+1+1), lacks R5 modulator and DVS flexibility | Targeted at fixed-voltage, multi-rail applications (e.g., baseband + RF + memory) without dynamic scaling needs | Choose ISL91211B only if quad-rail simplicity outweighs need for fast transient response, DVS, or configurable phase grouping |
Compared with ISL91301B and ISL91211B, the ISL91302BIKZT7AR5856 uniquely combines 5A/phase capability, R5 modulator-based transient performance, and factory-configurable multiphase topologies-making it the sole option for high-dynamic mobile AP and GPU core power where 4+0/3+1/2+2 flexibility and sub-µs response are mandatory.
Availability
ISL91302BIKZT7AR5856 is available at Aetrix Electronics and suitable for smartphone AP core power, FPGA power delivery, and industrial MPU applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant WLCSP packaging.
Supply support for ISL91302BIKZT7AR5856 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 SoC solutions for automotive, industrial, and enterprise markets.
The ISL91302B product line was designed specifically for high-efficiency, ultra-compact multiphase power delivery in battery-powered mobile and edge computing devices, emphasizing configurability, telemetry, and transient robustness.
FAQ
What output configurations does the ISL91302BIKZT7AR5856 support?
The ISL91302BIKZT7AR5856 supports three factory OTP-configurable output topologies: 4-phase single output (4+0), 3-phase + 1-phase dual output (3+1), and 2-phase + 2-phase dual output (2+2). Each configuration assigns the four integrated power stages to meet specific SoC rail requirements-such as CPU core, GPU core, or auxiliary domains-without changing hardware. The ISL91302BIKZT7AR5856's pinout and internal routing are identical across all modes; configuration is performed exclusively via OTP settings during manufacturing.
How does the R5 modulator in the ISL91302BIKZT7AR5856 improve transient response?
The R5 modulator in the ISL91302BIKZT7AR5856 enables ultra-fast transient response-up to 50A/µs per phase-by combining predictive control, adaptive loop gain, and seamless DCM/CCM transitions without external compensation components. This architecture eliminates the need for loop-stabilizing capacitors or resistors, reduces design iteration cycles, and maintains ±25mV regulation window during aggressive load steps. The ISL91302BIKZT7AR5856 achieves this while sustaining loop stability across temperature and input voltage variations, a key differentiator versus conventional voltage-mode or current-mode controllers.
What is the role of remote sensing (RTN1/RTN2 and VOUT1/VOUT2) in the ISL91302BIKZT7AR5856?
Remote sensing via RTN1/RTN2 (remote ground) and VOUT1/VOUT2 (remote output) pins in the ISL91302BIKZT7AR5856 compensates for IR drop across PCB traces and connectors, ensuring ±0.7% system-level output voltage accuracy under full load. These pins form Kelvin connections that bypass voltage drops in high-current return paths, allowing the ISL91302BIKZT7AR5856 to regulate directly at the load point. This capability is essential for maintaining timing margins in high-speed processors and FPGAs where even 10mV deviation can cause functional failure.
Can the ISL91302BIKZT7AR5856 operate with a 1.8V I/O supply (VIO)?
Yes, the ISL91302BIKZT7AR5856 supports a 1.8V I/O supply on the VIO pin, which is required for proper logic-level operation of its MPIO and GPIO pins. The datasheet specifies VIO must be between 1.7V and AVIN (max 5.5V), and 1.8V is the nominal and recommended value for compatibility with standard mobile interface voltages. At VIO = 1.8V, the ISL91302BIKZT7AR5856 guarantees correct SPI (up to 26MHz) and I²C (up to 3.4MHz) communication, as well as accurate logic thresholds (VIH = 1.35V, VIL = 0.5V) for enable and interrupt signals.
What protection features are integrated into the ISL91302BIKZT7AR5856?
The ISL91302BIKZT7AR5856 integrates comprehensive protection: overvoltage (OV) and undervoltage (UV) detection on outputs (±35mV threshold accuracy), overcurrent (OC) limiting per phase with ±10% tolerance, thermal warning at +85°C (±10°C), thermal shutdown at +140°C (±10°C) with +60°C hysteresis, and short-circuit protection. All faults trigger the INT pin and can be read via register access. The ISL91302BIKZT7AR5856 also includes UVLO on AVIN/PVIN (2.52–2.67V rising threshold) and soft-start to prevent inrush current-ensuring robust operation in unregulated or noisy power environments.
ISL91302BIKZT7AR5856 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:
- Adjustable
- Number of Outputs:
- 1 or 2
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.7V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 5A
- Frequency - Switching:
- -
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 35-TFBGA (4.7x6.3)
ISL91302BIKZT7AR5856 FAQ
1.How can I place an order for ISL91302BIKZT7AR5856 through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL91302BIKZT7AR5856 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 ISL91302BIKZT7AR5856 reliable?
The price and inventory of ISL91302BIKZT7AR5856 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL91302BIKZT7AR5856 is usually 5 days.
3.What payment methods are accepted for ISL91302BIKZT7AR5856?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL91302BIKZT7AR5856 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL91302BIKZT7AR5856?
ISL91302BIKZT7AR5856 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL91302BIKZT7AR5856 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 ISL91302BIKZT7AR5856?
For technical support, including ISL91302BIKZT7AR5856 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL91302BIKZT7AR5856 requirements.
6.How does Aetrix verify that ISL91302BIKZT7AR5856 is sourced from the original manufacturer or authorized distributors?
All ISL91302BIKZT7AR5856 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 ISL91302BIKZT7AR5856 meets industry standards.
7.What is the process for return or replacement of ISL91302BIKZT7AR5856?
All ISL91302BIKZT7AR5856 units undergo pre-shipment inspection (PSI). If there is an issue with ISL91302BIKZT7AR5856, 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 ISL91302BIKZT7AR5856 part is unused and in its original packaging.
Return procedure for ISL91302BIKZT7AR5856:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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