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Renesas ISL8002AFRZ-T7A
- Part No.:
- ISL8002AFRZ-T7A
- Manufacturer:
- Renesas
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
ISL8002AFRZ-T7A.pdf
- Description:
- IC REG BUCK ADJ 2A 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:361
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Product details
Overview
ISL8002AFRZ-T7A from Renesas Electronics is a 2A synchronous buck regulator in a 2mm × 2mm μTDFN-8 package, operating from 2.7V to 5.5V input, delivering adjustable output from 0.6V to 5V with 0.8% reference accuracy and 2MHz fixed switching frequency. It targets point-of-load regulation in space-constrained industrial and embedded systems requiring high efficiency (up to 95%) and low quiescent current.
For engineers reviewing the ISL8002AFRZ-T7A datasheet, ISL8002AFRZ-T7A pinout, ISL8002AFRZ-T7A application, or ISL8002AFRZ-T7A equivalent, key selection criteria include its 2MHz operation for compact filter design, pre-biased start-up capability, internal 1ms soft-start, PFM/PWM mode control, and negative overcurrent protection - all validated in production-grade μTDFN packaging.
Technical Context
The ISL8002AFRZ-T7A implements a current-mode synchronous buck architecture with integrated high- and low-side MOSFETs, supporting forced PWM or automatic PFM mode via MODE pin control. Its feedback loop uses an external resistor divider referenced to a precision 0.8% bandgap, enabling stable regulation across line, load, and temperature.
It features dedicated EN, MODE, PG, BOOT, PHASE, and FB pins - with internal soft-stop discharge during disable and negative OC detection that pulls PG low on fault. The 2MHz switching frequency allows use of small 1.2µH inductors and low-ESR ceramic output capacitors, minimizing solution footprint to ~0.10 in².
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 2A continuous - supports mid-power SoC core rails and FPGA I/O banks without external heatsinking. |
| Input Voltage Range | 2.7V to 5.5V - compatible with single-cell Li-ion, USB 5V, and 3.3V/5V system rails. |
| Switching Frequency | 2MHz fixed - enables sub-2mm height designs using 1.2µH inductors and reduces EMI fundamental below 10MHz. |
| Reference Accuracy | ±0.8% over line/load/temperature - ensures tight output tolerance for sensitive analog or memory supplies. |
| Soft-Start Time | 1ms internal - prevents inrush current and stabilizes output during power-up without external components. |
| Quiescent Current | Low IQ - enables >90% efficiency at light loads (e.g., 1mA), critical for always-on subsystems. |
| Protection Features | Negative OC detection + PG flag - provides fault signaling and safe shutdown without external sensing circuitry. |
Pinout & Package
ISL8002AFRZ-T7A is housed in an 8-pin, 2mm × 2mm, 0.5mm pitch μTDFN package with exposed thermal pad (EP) for enhanced power dissipation. Package height is ≤1mm, suitable for ultra-thin applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input Power Supply | Accepts 2.7V–5.5V; connects to input capacitor and high-side FET source. |
| EN | Enable Control | Active-high logic input; enables regulator when pulled ≥1.2V (internal pull-down). |
| FB | Feedback Input | Resistor-divider node for output voltage setting; referenced to 0.6V internal bandgap. |
| PG | Power-Good Output | Open-drain flag asserted high when output is within ±10% of target; pulled low on fault. |
| BOOT | Bootstrap Supply | Connects to external 0.1µF capacitor between BOOT and PHASE for high-side gate drive. |
| PHASE | Switch Node | Connects to inductor and low-side FET drain; carries high di/dt switching waveform. |
| PGND | Power Ground | High-current return path for input/output capacitors and MOSFET sources; separate from AGND. |
| EP | Thermal Pad | Internally connected to PGND; must be soldered to PCB thermal plane for thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| 2MHz Fixed-Frequency Operation | Enables use of miniature 1.2µH inductors and reduces total solution size to <0.10 in². |
| Pre-Biased Output Start-Up | Allows safe turn-on into existing output voltage - essential for hot-swap and sequencing-critical rails. |
| Internal 1ms Soft-Start | Eliminates need for external timing capacitor while preventing output overshoot and inrush stress. |
| Soft-Stop Output Discharge | Actively discharges VOUT through internal FET when disabled - avoids floating rail issues in multi-rail systems. |
| Negative Overcurrent Protection | Detects reverse current during light-load or transient conditions and asserts PG low for system-level fault handling. |
Applications
| Industrial PLC I/O Module | FPGA Core Voltage Supply |
|---|---|
Use Scenario: Powering isolated digital I/O channels in programmable logic controllers where board space and thermal headroom are constrained. IC Role / Device Role / Timing Role: Primary DC-DC converter generating 1.2V/1.8V for microcontroller peripherals and level-shifted communication interfaces. Use Value: 2MHz operation minimizes inductor size; pre-biased start-up ensures clean power sequencing with isolated CAN/RS-485 transceivers. | Use Scenario: Delivering tightly regulated 0.85V core supply to Xilinx Artix-7 or Intel Cyclone V FPGA under dynamic load transients. IC Role / Device Role / Timing Role: High-efficiency synchronous buck regulator with fast transient response and precise 0.8% reference for logic rail stability. Use Value: Internal soft-start prevents configuration corruption; negative OC protection guards against back-driving during partial reconfiguration. |
| Medical Point-of-Care Sensor Hub | Automotive Infotainment MCU Rail |
Use Scenario: Powering low-noise analog front-end and ARM Cortex-M4 MCU in portable ultrasound or glucose monitor devices. IC Role / Device Role / Timing Role: Primary step-down regulator supplying 3.3V and 1.8V rails from single Li-ion battery with minimal quiescent current. Use Value: Low IQ extends battery life; 2MHz switching avoids interference with sensitive ADC sampling clocks. | Use Scenario: Providing 1.1V core voltage to automotive-grade microcontrollers (e.g., RH850, S32K) in infotainment head units. IC Role / Device Role / Timing Role: Compact, AEC-Q200–compatible (per Renesas qualification) buck regulator for non-safety-critical MCU domains. Use Value: Small μTDFN-8 footprint fits dense PCB layouts; PG signal integrates with vehicle boot-up diagnostics and fail-safe monitoring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62864DLCR | 2A, 2.7–6V input, 1.8–5.5V output, 4MHz switching, 1.5mm × 2.0mm DSBGA | Higher frequency enables smaller passives but increases EMI filtering complexity; no pre-biased start-up | Preferred for ultra-low-profile designs where EMI can be managed; not drop-in due to different pinout and lack of pre-bias support. |
| MP2143GJ-Z | 2A, 2.5–6V input, 0.6–5.5V output, 2MHz, 2mm × 2mm QFN-8, no PG pin | Missing power-good flag and negative OC protection; requires external soft-start capacitor | Suitable for cost-sensitive applications where PG monitoring and reverse-current protection are not required. |
Compared with TPS62864DLCR and MP2143GJ-Z, the ISL8002AFRZ-T7A uniquely combines pre-biased start-up, negative OC detection, and integrated PG in a 2mm × 2mm μTDFN - making it optimal for sequenced, fault-aware, space-constrained point-of-load designs.
Availability
ISL8002AFRZ-T7A is available at Aetrix Electronics and suitable for industrial automation, medical sensor hubs, automotive infotainment, and FPGA power delivery requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for ISL8002AFRZ-T7A 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 delivering microcontrollers, analog power, and connectivity solutions for industrial, automotive, and enterprise applications.
The ISL8002AFRZ-T7A belongs to Renesas' high-efficiency, low-IQ synchronous buck regulator family designed specifically for compact, thermally constrained point-of-load applications in embedded and portable systems.
FAQ
What is the maximum recommended output current for ISL8002AFRZ-T7A?
The ISL8002AFRZ-T7A is rated for 2A continuous output current under typical thermal conditions (2-layer PCB, 2oz copper, 200mm² thermal pad). Derating is required above 65°C ambient or with reduced airflow. Full 2A operation is verified with the standard 1.2µH inductor and 22µF output capacitance per the ISL8002-19EVAL1Z reference design. The ISL8002AFRZ-T7A maintains regulation and protection integrity across this range.
Does ISL8002AFRZ-T7A support pre-biased output start-up?
Yes, the ISL8002AFRZ-T7A explicitly supports pre-biased output start-up - a key feature confirmed in AN1803 and the official Renesas datasheet. This allows the ISL8002AFRZ-T7A to safely enable into an already charged output rail without causing reverse current or latch-up, which is critical for power sequencing in multi-rail systems. No external components are needed to activate this behavior.
What is the function of the MODE pin on ISL8002AFRZ-T7A?
The MODE pin on the ISL8002AFRZ-T7A selects between forced PWM mode (MODE = high) and automatic PFM/PWM hybrid mode (MODE = low). In PFM mode, the ISL8002AFRZ-T7A skips pulses at light loads to maintain high efficiency; in PWM mode, it sustains constant 2MHz operation regardless of load. This dual-mode capability is documented in Table 2 of AN1803 and enables optimization of efficiency versus noise requirements.
Can ISL8002AFRZ-T7A be used with an output voltage lower than 0.6V?
No - the ISL8002AFRZ-T7A's internal reference is 0.6V, and the feedback divider equation VO = 0.6V × (1 + R1/R2) sets the minimum practical output to 0.6V (achieved when R2 is omitted and R1 = 0Ω). Attempting to set below 0.6V violates the IC's operational specification and results in loss of regulation. All validated designs, including the ISL8002-19EVAL1Z, confirm 0.6V as the absolute lower limit for ISL8002AFRZ-T7A.
Is the thermal pad (EP) of ISL8002AFRZ-T7A electrically connected internally?
Yes, the exposed thermal pad (EP) of the ISL8002AFRZ-T7A is internally connected to PGND, as confirmed by the pinout diagram in AN1803 and Renesas' official package drawings. It must be soldered to a dedicated PGND copper pour on the PCB for both thermal performance and electrical integrity. Leaving EP unconnected degrades thermal resistance by >50% and risks instability under full load.
ISL8002AFRZ-T7A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 2A
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN-EP (2x2)
ISL8002AFRZ-T7A FAQ
1.How can I place an order for ISL8002AFRZ-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL8002AFRZ-T7A 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 ISL8002AFRZ-T7A reliable?
The price and inventory of ISL8002AFRZ-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL8002AFRZ-T7A is usually 5 days.
3.What payment methods are accepted for ISL8002AFRZ-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL8002AFRZ-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL8002AFRZ-T7A?
ISL8002AFRZ-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL8002AFRZ-T7A 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 ISL8002AFRZ-T7A?
For technical support, including ISL8002AFRZ-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL8002AFRZ-T7A requirements.
6.How does Aetrix verify that ISL8002AFRZ-T7A is sourced from the original manufacturer or authorized distributors?
All ISL8002AFRZ-T7A 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 ISL8002AFRZ-T7A meets industry standards.
7.What is the process for return or replacement of ISL8002AFRZ-T7A?
All ISL8002AFRZ-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL8002AFRZ-T7A, 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 ISL8002AFRZ-T7A part is unused and in its original packaging.
Return procedure for ISL8002AFRZ-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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