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Renesas ISL8002FRZ-T7A
- Part No.:
- ISL8002FRZ-T7A
- Manufacturer:
- Renesas
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
ISL8002FRZ-T7A.pdf
- Description:
- IC REG BUCK ADJ 2A 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:100
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Product details
Overview
ISL8002FRZ-T7A from Renesas (formerly Intersil) is a monolithic synchronous buck regulator delivering up to 2A continuous output current from a 2.7V–5.5V input, operating at 1MHz switching frequency with internal compensation, 0.6V feedback reference, and -40°C to +125°C junction temperature rating. It integrates low-rDS(ON) PMOS/NMOS power switches and eliminates boot capacitor requirements.
For engineers reviewing the ISL8002FRZ-T7A datasheet, ISL8002FRZ-T7A pinout, ISL8002FRZ-T7A application, or ISL8002FRZ-T7A equivalent, key selection criteria include its high-temp industrial rating, 100% duty-cycle capability at 1MHz, PFM/PWM mode selectability, integrated thermal/overcurrent protection, and compact 2mm×2mm TDFN package with exposed thermal pad.
Technical Context
The ISL8002FRZ-T7A uses peak current-mode control with slope compensation (900mV/Ts) for stability across wide duty cycles. Its architecture supports both internal compensation (via COMP tied to VIN) and external RC networks, enabling flexible loop tuning for varied output capacitance and load transient profiles.
It features dual-mode operation: PWM ensures fixed-frequency noise control and predictable EMI, while PFM reduces quiescent current to 35µA at light loads-critical for battery-powered systems. Protection includes overcurrent (3–4A peak limit), thermal shutdown (150°C), UVLO (2.7V rising threshold), and VOUT overvoltage/undervoltage monitoring via FB pin.
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 rail inputs without pre-regulation |
| IOUT Max | 2A continuous - sufficient for FPGA core, DDR memory, or SoC I/O rails |
| Switching Frequency | 1MHz - enables use of ≤2.2µH inductors and minimizes EMI filter size |
| Feedback Voltage | 0.600V ±5mV - sets precise output voltage via resistor divider (e.g., 200kΩ/100kΩ for 1.8V) |
| Junction Temp Range | -40°C to +125°C - qualified for under-hood automotive, industrial PLC, and high-ambient embedded applications |
| Peak Efficiency | 95% - achieved at mid-load (e.g., 1.2A @ 1.8V/3.3V input), reducing thermal stress in sealed enclosures |
| Duty Cycle Max | 100% - maintains regulation during ultra-low dropout (200mV @ 2A), critical for battery end-of-life operation |
Pinout & Package
ISL8002FRZ-T7A is housed in an 8-pin 2mm×2mm TDFN package with exposed thermal pad (Pin 9), optimized for high-power density and thermal dissipation in space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Input power supply rail | Supplies power stage and internal LDO; requires ≥10µF ceramic decoupling close to pin |
| EN (Pin 2) | Enable control input | Active-high logic (≥1.4V); pulls PHASE low via 100Ω when disabled for controlled discharge |
| MODE (Pin 3) | Operating mode selector | High = PWM (fixed 1MHz), Low = PFM (variable frequency); internal 1MΩ pull-down prevents floating |
| PG (Pin 4) | Power-good open-drain output | Asserts low during soft-start or if VOUT drops <85% or rises >115% of setpoint; 5MΩ internal pull-up |
| COMP (Pin 5) | Error amplifier output | Tied to VIN for internal compensation; connected to RC network for external loop tuning |
| FB (Pin 6) | Voltage feedback input | Senses output via resistor divider; used by PG, UVLO, and OVP circuits - accuracy directly impacts regulation |
| PGND (Pin 7) | Power and analog ground | Must connect directly to PCB ground plane; shared return for high-current switching paths |
| PHASE (Pin 8) | Switching node | Connects to inductor; carries high di/dt current; discharged via 100Ω when EN = low |
Key Features
| Feature | Design Value |
|---|---|
| PMOS high-side switch | Eliminates boot capacitor requirement, simplifying layout and reducing BOM count |
| Selectable PFM/PWM mode | Enables dynamic trade-off between light-load efficiency (PFM: 35µA IQ) and EMI control (PWM: fixed 1MHz) |
| 100% duty-cycle operation | Maintains regulation down to 200mV dropout at 2A - extends usable battery voltage range |
| Integrated protection suite | Includes overcurrent (3.5A typ), thermal shutdown (150°C), UVLO (2.7V), and output OVP/UVP |
| Internal/external compensation | Default internal (27pF/200kΩ) simplifies design; external option supports custom transient response tuning |
Applications
| Industrial Motor Control | FPGA Core Power |
|---|---|
Use Scenario: Powering gate drivers and microcontrollers in motor drives operating in ambient temperatures up to +105°C. IC Role / Device Role / Timing Role: Primary 1.2V/2A point-of-load regulator supplying FPGA configuration logic and real-time control processors. Use Value: 125°C junction rating and 100% duty cycle ensure stable operation during thermal transients and brown-out conditions. | Use Scenario: Delivering tightly regulated 1.0V–1.2V core voltage to Xilinx Artix-7 or Intel Cyclone V FPGAs. IC Role / Device Role / Timing Role: High-efficiency synchronous buck converter with fast load transient response (<50µs recovery). Use Value: 95% peak efficiency and 1MHz switching minimize heat generation and simplify thermal management on dense FPGA carrier boards. |
| Automotive Infotainment | Set-Top Box SoC Supply |
Use Scenario: Powering application processors and display interfaces in head-unit systems requiring AEC-Q200 alignment. IC Role / Device Role / Timing Role: Secondary DC/DC regulator converting 5V USB or 3.3V system rail to 1.8V I/O voltage. Use Value: -40°C to +125°C qualification and robust OVP/UVP protect against load dump and reverse-battery events. | Use Scenario: Supplying 3.3V/2A to media processor SoCs in cable/satellite receivers with strict standby power budgets. IC Role / Device Role / Timing Role: Main system rail converter supporting both active (PWM) and deep-sleep (PFM) modes. Use Value: 35µA quiescent current in PFM mode extends standby time without compromising wake-up responsiveness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL8002IRZ-T7A | Same 2A/1MHz spec but rated for -40°C to +85°C junction temperature | Not suitable for under-hood or high-ambient industrial environments | Select ISL8002FRZ-T7A when extended temperature operation is required |
| TPS54202DRCT | 2A, 1.5MHz, 2.7V–6V input, 0.6V reference, but requires external bootstrap capacitor | Lacks 100% duty cycle and integrated thermal shutdown hysteresis | Choose ISL8002FRZ-T7A for simplified layout, higher temp rating, and enhanced protection integration |
Compared with ISL8002IRZ-T7A, ISL8002FRZ-T7A adds 40°C higher max junction temperature and full automotive-grade reliability margins; versus TPS54202DRCT, it removes boot capacitor dependency and provides tighter VFB tolerance (±5mV vs ±15mV), improving output accuracy across temperature.
Availability
ISL8002FRZ-T7A is available at Aetrix Electronics and suitable for industrial motor control, automotive infotainment, FPGA power, and set-top box SoC supply applications requiring stable component supply across extended temperature ranges.
Supply support for ISL8002FRZ-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 acquired Intersil in 2017 and continues to support its high-performance analog and power management portfolio with full datasheet, simulation model, and application note availability.
The ISL8002FRZ-T7A belongs to Renesas' compact synchronous buck regulator product line, designed specifically for space-constrained, thermally demanding applications in industrial automation, automotive subsystems, and embedded computing where reliability across extreme temperatures is mandatory.
FAQ
What is the maximum junction temperature rating for the ISL8002FRZ-T7A?
The ISL8002FRZ-T7A is rated for a junction temperature range of -40°C to +125°C, making it suitable for high-ambient applications such as industrial motor drives and automotive under-dash electronics. This exceeds the +85°C rating of the ISL8002IRZ-T7A variant and is verified per the FN7888 datasheet Absolute Maximum Ratings table on page 7.
Does the ISL8002FRZ-T7A require an external boot capacitor?
No, the ISL8002FRZ-T7A does not require an external boot capacitor because it uses a PMOS high-side MOSFET. This architecture eliminates the need for charge-pump circuitry or external capacitors typically required by NMOS-based synchronous buck regulators, simplifying PCB layout and reducing BOM cost.
How does the MODE pin affect ISL8002FRZ-T7A operation?
The MODE pin on the ISL8002FRZ-T7A selects between PFM (low or GND) for ultra-low quiescent current (35µA) at light loads, and PWM (high or VIN) for fixed 1MHz switching and consistent EMI profile. An internal 1MΩ pull-down prevents undefined states, but direct connection is recommended for deterministic behavior.
What protection features are integrated into the ISL8002FRZ-T7A?
The ISL8002FRZ-T7A integrates overcurrent protection (3.5A typical peak limit), thermal shutdown (150°C with 25°C hysteresis), input undervoltage lockout (2.7V rising threshold), output overvoltage protection (115% of VOUT), and undervoltage detection (85% of VOUT). All protections are fully autonomous and require no external components.
Can the ISL8002FRZ-T7A operate at 100% duty cycle, and under what conditions?
Yes, the ISL8002FRZ-T7A supports 100% duty cycle operation at its 1MHz switching frequency, enabling regulation with only 200mV input-to-output dropout at 2A load. This capability is explicitly confirmed in the datasheet's "100% Duty Cycle (1MHz Version)" section on page 18 and is critical for maintaining output during battery voltage sag.
ISL8002FRZ-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:
- 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN-EP (2x2)
ISL8002FRZ-T7A FAQ
1.How can I place an order for ISL8002FRZ-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL8002FRZ-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 ISL8002FRZ-T7A reliable?
The price and inventory of ISL8002FRZ-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL8002FRZ-T7A is usually 5 days.
3.What payment methods are accepted for ISL8002FRZ-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL8002FRZ-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL8002FRZ-T7A?
ISL8002FRZ-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL8002FRZ-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 ISL8002FRZ-T7A?
For technical support, including ISL8002FRZ-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL8002FRZ-T7A requirements.
6.How does Aetrix verify that ISL8002FRZ-T7A is sourced from the original manufacturer or authorized distributors?
All ISL8002FRZ-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 ISL8002FRZ-T7A meets industry standards.
7.What is the process for return or replacement of ISL8002FRZ-T7A?
All ISL8002FRZ-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL8002FRZ-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 ISL8002FRZ-T7A part is unused and in its original packaging.
Return procedure for ISL8002FRZ-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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