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Renesas ISL8002AFRZ-T
- Part No.:
- ISL8002AFRZ-T
- Manufacturer:
- Renesas
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
ISL8002AFRZ-T.pdf
- Description:
- IC REG BUCK ADJ 2A 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,830
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Product details
Overview
ISL8002AFRZ-T from Renesas (formerly Intersil) is a monolithic synchronous buck DC/DC regulator delivering up to 2A continuous output current from a 2.7V–5.5V input, operating at 2MHz switching frequency with internal/external compensation options and integrated PMOS/NMOS power FETs. It supports 100% duty cycle operation at 200mV dropout and features PFM/PWM mode selection for light-load efficiency optimization in FPGA, LCD panel, and set-top box power rails.
For engineers reviewing the ISL8002AFRZ-T datasheet, ISL8002AFRZ-T pinout, ISL8002AFRZ-T application, or ISL8002AFRZ-T equivalent, key selection criteria include its −40°C to +125°C extended temperature rating, 2MHz high-frequency operation enabling compact 1.2–3.3µH inductors, 0.6V feedback reference with ±5mV accuracy, and thermal shutdown with 25°C hysteresis - all critical for industrial and automotive point-of-load designs.
Technical Context
The ISL8002AFRZ-T employs peak current-mode control with slope compensation (900mV/Ts) for stability across wide duty cycles and load transients. Its architecture integrates a low-rDS(ON) PMOS high-side switch (117mΩ @ 5V) eliminating boot capacitor requirements and an NMOS low-side switch (86mΩ), enabling 100% duty-cycle operation at 1MHz (not applicable at 2MHz per datasheet Table 1).
It supports dual regulation modes: PWM for low-noise, fixed-frequency operation and PFM for ultra-low quiescent current (35µA typical) during light loads. Protection includes overcurrent limiting (3–4A peak), short-circuit response, negative current detection (−1.5A), UVLO (2.7V rising), and thermal shutdown at 150°C with 25°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 2.7V to 5.5V - supports single-cell Li-ion, USB, and 3.3V/5V system rails without external LDO pre-regulation. |
| IOUT Max | 2A continuous - sufficient for core logic, DDR memory termination, and small FPGA I/O banks. |
| fSW | 2MHz nominal - enables use of sub-2.2µH inductors and reduces output ripple without increasing ESR-sensitive capacitor count. |
| VFB | 0.600V ±5mV - sets output voltage via resistor divider; enables precise 0.8V–3.3V outputs with <±0.2%/A load regulation. |
| Efficiency Peak | Up to 95% - achieved at mid-load (1–1.5A) with 3.3VIN/1.8VOUT, minimizing thermal dissipation in space-constrained PCBs. |
| Quiescent Current | 35µA (PFM, no load) - extends battery runtime in always-on subsystems like remote control receivers or sensor wake-up circuits. |
| Thermal Rating | Junction temp: −40°C to +125°C - qualified for under-hood automotive modules and industrial controllers without derating. |
Pinout & Package
Package: 8-pin 2mm × 2mm TDFN with exposed thermal pad (T-PAD), RoHS-compliant, MSL3, θJA = 71°C/W, θJC = 7°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Input power supply rail | Supplies both power stage and internal bias regulator; requires ≥10µF ceramic decoupling placed adjacent to pin. |
| EN (Pin 2) | Enable control input | Active-high logic (≥1.4V); pulls PHASE low via 100Ω when disabled to discharge output during shutdown. |
| MODE (Pin 3) | Regulation mode selector | Logic high = PWM; logic low = PFM; internal 1MΩ pull-down prevents floating state. |
| PG (Pin 4) | Power-good open-drain output | Asserts low during soft-start and if VOUT falls below 90% or rises above 120% of setpoint; 5MΩ internal pull-up. |
| COMP (Pin 5) | Error amplifier output | Tied to VIN for internal compensation; connected to RC network to GND for external loop tuning. |
| FB (Pin 6) | Feedback input | Monitors output via resistor divider; serves as input to error amp and UV/OV protection comparators. |
| PGND (Pin 7) | Power/analog ground | Must connect directly to PCB ground plane; shares return path with PHASE and T-PAD. |
| PHASE (Pin 8) | Switching node | Connects to inductor; carries high di/dt current; discharged by 100Ω resistor during disable. |
| T-PAD (Pin 9) | Thermal & power ground | Exposed pad on underside; requires multiple thermal vias to PGND plane for thermal and electrical integrity. |
Key Features
| Feature | Design Value |
|---|---|
| PMOS high-side switch | Eliminates boot capacitor requirement, reducing BOM count and layout complexity in high-density designs. |
| Selectability between PFM and PWM | Enables dynamic trade-off between light-load efficiency (PFM: 35µA IQ) and EMI control (PWM: fixed 2MHz frequency). |
| Internal/external compensation | Allows rapid prototyping with internal RC (27pF/200kΩ) or precision tuning via external network for custom transient response. |
| 100% duty cycle capability (1MHz version only) | Not applicable to ISL8002AFRZ-T (2MHz variant), but confirms family-level architecture optimized for ultra-low dropout in 1MHz variants. |
| Integrated protection suite | Includes OCP (3.5A typ), SCP, thermal shutdown (150°C), UVLO (2.7V), and VOUT OV/UV monitoring - reduces need for external supervision ICs. |
Applications
| Application 1 | Application 2 |
|---|---|
Use Scenario: Powering FPGA I/O banks and configuration circuitry in industrial PLC modules requiring stable 1.8V/2A rails with minimal board area. IC Role / Device Role / Timing Role: Primary synchronous buck converter regulating core I/O voltage with fast load-transient response (<100µs recovery per Fig. 45–46). Use Value: 2MHz operation allows 1.5µH inductor and compact 22µF ceramic output caps, reducing total solution size to <0.10 in² while maintaining >92% efficiency at full load. | Use Scenario: Supplying backlight LED drivers and timing controllers in automotive-grade LCD instrument clusters operating from 5V CAN bus rails. IC Role / Device Role / Timing Role: Point-of-load regulator delivering 3.3V/2A with thermal robustness across −40°C to +125°C ambient. Use Value: Extended temperature qualification and 25°C thermal hysteresis prevent nuisance shutdowns during engine heat soak, ensuring display uptime. |
| Application 3 | Application 4 |
Use Scenario: Providing clean 1.2V core voltage to ARM Cortex-M7 microcontrollers in battery-powered edge AI sensors. IC Role / Device Role / Timing Role: High-efficiency buck converter operating in PFM mode during sleep (35µA IQ) and PWM during inference bursts. Use Value: Ultra-low quiescent current extends coin-cell or Li-SOCl₂ battery life by >3× versus standard 2MHz PWM-only regulators. | Use Scenario: Generating 0.9V DDR3/DDR4 termination voltage in set-top box SoC power domains with strict ripple limits. IC Role / Device Role / Timing Role: Low-noise, tightly regulated buck converter using external compensation for optimized phase margin and PSRR. Use Value: 0.6V reference tolerance (±5mV) and <−0.2%/A load regulation ensure VTT stays within JEDEC-specified ±1% window under dynamic load steps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62864DRLR | 2A, 2.5MHz, 2.7–6VIN, 0.6VFB, integrated inductor option available; lower IQ (1.2µA shutdown, 12µA PFM) | Better suited for ultra-portable wearables due to smaller solution size and lower shutdown current; lacks 125°C rating. | Select TPS62864DRLR when board space is constrained and ambient temperature remains ≤85°C; avoid for under-hood or industrial enclosures. |
| MP2143GJ-Z | 2A, 2MHz, 2.5–6VIN, 0.6VFB, same 2x2 TDFN package; higher max junction temp (+150°C), but no PFM mode - fixed PWM only. | Preferred for noise-sensitive audio subsystems where fixed-frequency operation simplifies EMI filtering; no light-load efficiency benefit. | Choose MP2143GJ-Z when deterministic EMI profile is mandatory and thermal margin exceeds 125°C; accept higher light-load IQ (250µA vs 35µA). |
Compared with TPS62864DRLR and MP2143GJ-Z, the ISL8002AFRZ-T uniquely balances extended temperature operation (+125°C), selectable PFM/PWM modes, and proven field reliability in industrial displays and automotive infotainment - making it optimal where thermal resilience and adaptive efficiency coexist.
Availability
ISL8002AFRZ-T is available at Aetrix Electronics and suitable for FPGA power, LCD panel supplies, and automotive infotainment systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ISL8002AFRZ-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 acquired Intersil in 2017 and maintains its high-performance analog and power management portfolio for industrial, automotive, and communications markets.
The ISL8002AFRZ-T belongs to Renesas' compact synchronous buck regulator product line, designed specifically for space-constrained, thermally demanding point-of-load applications where high efficiency, fast transient response, and extended temperature operation are mandatory.
FAQ
What is the maximum output current and input voltage range supported by the ISL8002AFRZ-T?
The ISL8002AFRZ-T delivers up to 2A of continuous output current and operates from a 2.7V to 5.5V input supply. This range accommodates common system rails including single-cell Li-ion batteries, USB 5V, and regulated 3.3V sources. The device maintains regulation down to 0.6V output and supports 100% duty cycle only in its 1MHz variants - the ISL8002AFRZ-T is a 2MHz part and does not support 100% duty cycle operation.
How does the MODE pin affect the operation of the ISL8002AFRZ-T?
The MODE pin on the ISL8002AFRZ-T selects between PWM and PFM regulation modes: connecting it to VIN or logic high enables fixed-frequency PWM operation, while grounding it activates discontinuous-conduction PFM mode. An internal 1MΩ pull-down prevents undefined states, but Renesas recommends explicit connection. In PFM mode, the ISL8002AFRZ-T achieves 35µA typical quiescent current, whereas PWM mode draws 10–22mA depending on switching frequency and load - critical for battery longevity in always-on systems.
What package type and thermal characteristics does the ISL8002AFRZ-T use?
The ISL8002AFRZ-T uses an 8-pin 2mm × 2mm TDFN package with an exposed thermal pad (T-PAD). Its thermal resistance is θJA = 71°C/W (free-air) and θJC = 7°C/W (junction-to-case), measured at the center of the exposed pad. The device is rated for −40°C to +125°C junction temperature and requires thermal vias from the T-PAD to the PGND plane to maintain safe operating temperatures under 2A continuous load.
Does the ISL8002AFRZ-T include built-in protection features?
Yes, the ISL8002AFRZ-T integrates multiple protection functions: overcurrent protection (3–4A peak limit), short-circuit protection, thermal shutdown at 150°C with 25°C hysteresis, input undervoltage lockout (2.7V rising threshold), and output overvoltage/undervoltage monitoring via the FB pin. The PG pin signals fault conditions by pulling low during startup, UVLO, or OVP events, enabling system-level fault handling without external supervisors.
Can the ISL8002AFRZ-T be used with external compensation, and what are the design implications?
Yes, the ISL8002AFRZ-T supports both internal and external compensation via the COMP pin. When tied to VIN, it uses an internal 27pF/200kΩ network; when connected to an external RC network to GND, it enables custom loop tuning for specific transient response or stability requirements. External compensation allows designers to optimize phase margin for varying output capacitance or load profiles - essential for high-reliability applications like automotive ADAS modules where load steps exceed 1A/µs.
ISL8002AFRZ-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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-T FAQ
1.How can I place an order for ISL8002AFRZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL8002AFRZ-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 ISL8002AFRZ-T reliable?
The price and inventory of ISL8002AFRZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL8002AFRZ-T is usually 5 days.
3.What payment methods are accepted for ISL8002AFRZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL8002AFRZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL8002AFRZ-T?
ISL8002AFRZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL8002AFRZ-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 ISL8002AFRZ-T?
For technical support, including ISL8002AFRZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL8002AFRZ-T requirements.
6.How does Aetrix verify that ISL8002AFRZ-T is sourced from the original manufacturer or authorized distributors?
All ISL8002AFRZ-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 ISL8002AFRZ-T meets industry standards.
7.What is the process for return or replacement of ISL8002AFRZ-T?
All ISL8002AFRZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL8002AFRZ-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 ISL8002AFRZ-T part is unused and in its original packaging.
Return procedure for ISL8002AFRZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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