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Renesas ISL8002BFRZ-T
- Part No.:
- ISL8002BFRZ-T
- Manufacturer:
- Renesas
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
ISL8002BFRZ-T.pdf
- Description:
- IC REG BUCK ADJ 2A 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,456
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Product details
Overview
ISL8002BFRZ-T 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 2MHz switching frequency with peak efficiency of 95%. It integrates low-rDS(ON) PMOS/NMOS power switches and supports selectable PFM/PWM light-load operation for POL applications in FPGAs and telecom equipment.
For engineers reviewing the ISL8002BFRZ-T datasheet, ISL8002BFRZ-T pinout, ISL8002BFRZ-T application, or ISL8002BFRZ-T equivalent, key selection criteria include its -40°C to +125°C operating junction temperature, external soft-start programmability via SS/TR pin, output tracking capability, and absence of boot capacitor requirement due to integrated PMOS high-side switch.
Technical Context
The ISL8002BFRZ-T employs peak current-mode control with internal slope compensation (900mV/Ts) and a transconductance error amplifier (80µA/V) with internal 27pF/200kΩ compensation. Its 2MHz fixed-frequency oscillator enables fast transient response and compact passive sizing.
It features dual-mode operation: PWM mode ensures tight regulation and low output ripple under dynamic load, while PFM mode reduces quiescent current to 35µA at no load-critical for battery-powered systems. Protection includes overcurrent (3.2A typ), thermal shutdown (150°C), UVLO (2.7V rising), and negative current limiting (-1.8A).
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 or I/O rails, DSPs, and ASIC point-of-load requirements. |
| fSW | 2MHz nominal (1.7–2.3MHz) - enables use of sub-2.2µH inductors and reduces EMI filter size. |
| VFB | 0.600V ±5mV (–40°C to +125°C) - sets output voltage via resistor divider; enables precise 0.8V–3.3V regulation. |
| Efficiency | Up to 95% peak - achieved via integrated 117mΩ PMOS and 86mΩ NMOS switches; minimizes thermal dissipation in space-constrained designs. |
| Operating Temp | –40°C to +125°C junction - qualified for industrial and extended-temperature embedded applications. |
| Soft-Start | Programmable via SS/TR pin (0.1ms delay) - prevents inrush current; supports tracking/sequencing with external resistive divider. |
Pinout & Package
The ISL8002BFRZ-T is housed in an 8-lead 2mm × 2mm TDFN package with exposed thermal pad (RoHS-compliant, L8.2x2C drawing), optimized for high-power density and thermal performance on compact PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input supply rail | Power source for both power stage and internal bias regulator; requires ≥10µF ceramic decoupling close to pin. |
| EN | Enable control input | Active-high logic (≥1.4V); pulls output low when disabled via 100Ω discharge path through PHASE. |
| MODE | Operation mode select | Logic-high = PWM (fast transient, low noise); logic-low = PFM (high light-load efficiency); internal 1MΩ pull-down. |
| PG | Power-good open-drain output | Asserted high after soft-start and VOUT regulation; 0.1ms rising/falling delay; internal 5MΩ pull-up. |
| SS/TR | Soft-start & tracking control | Configures ramp rate (capacitor-to-GND) or enables output voltage tracking (resistor divider to second rail). |
| FB | Feedback node | Connects to resistor divider; monitors regulated output; used by PG and UVLO circuits. |
| PGND | Power/analog ground | Must be connected directly to board GND plane; shared return for power stage and analog circuitry. |
| PHASE | Switching node | Connects to inductor; discharged via 100Ω resistor during shutdown; requires low-inductance layout. |
Key Features
| Feature | Design Value |
|---|---|
| No boot capacitor required | PMOS high-side switch eliminates need for external bootstrap circuitry, reducing BOM count and layout complexity. |
| Selectable PFM/PWM mode | Enables optimal trade-off between light-load efficiency (PFM: 35µA IQ) and dynamic performance (PWM: <100ns min on-time). |
| Output tracking & sequencing | SS/TR pin supports coincident, sequential, or ratiometric startup/shutdown of multiple rails using external dividers. |
| Integrated protection suite | Includes overcurrent (3.2A), short-circuit, thermal shutdown (150°C), UVLO (2.7V), and negative current limiting (-1.8A). |
| High-temperature qualification | Rated for full 2A operation up to +125°C junction temperature-validated for industrial and automotive under-hood adjacent use. |
Applications
| FPGA Core Power | Industrial PLC I/O Module |
|---|---|
Use Scenario: Supplying 0.8V–1.2V core voltage to Xilinx Artix-7 or Intel Cyclone V FPGA under dynamic load transients. IC Role / Device Role / Timing Role: Primary synchronous buck regulator providing tightly regulated, low-noise DC output with fast transient response. Use Value: 2MHz switching and internal compensation enable <500ns load-step recovery; 95% efficiency reduces heatsink requirements in dense modules. | Use Scenario: Powering isolated analog front-end and microcontroller in DIN-rail mounted programmable logic controller. IC Role / Device Role / Timing Role: Point-of-load regulator converting 5V backplane to 3.3V/2.5V rails with robust thermal and fault tolerance. Use Value: –40°C to +125°C rating ensures reliability across ambient extremes; UVLO and thermal shutdown prevent field failures. |
| Telecom Baseband Processor | Medical Imaging Sensor Interface |
Use Scenario: Delivering clean 1.5V/1.8V supply to LTE/5G baseband SoCs with stringent RF noise limits. IC Role / Device Role / Timing Role: Low-EMI POL regulator operating in PWM mode to suppress switching noise near sensitive RF sections. Use Value: Fixed 2MHz frequency simplifies EMI filtering; PFM/PWM auto-transition avoids audible noise while maintaining PSRR >60dB at 100kHz. | Use Scenario: Powering low-noise ADC drivers and precision op-amps in portable ultrasound or MRI sensor signal chains. IC Role / Device Role / Timing Role: High-PSRR, low-ripple DC-DC converter supplying analog subsystems requiring <10mVpp ripple. Use Value: Internal compensation and 0.6V reference enable stable 0.8V–2.5V outputs; soft-start prevents sensor bias disruption during power-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62130ARGTR | 3A rated, 2.5V–6V input, 2.5MHz switching, requires external boot capacitor; lower IQ in DCM mode (18µA). | Higher current headroom but less suitable for ultra-compact layouts due to larger 3mm×3mm QFN package. | Choose when >2A output or wider VIN range is needed; verify boot capacitor placement and thermal derating above 85°C. |
| MP2315GJ-Z | 2A rated, 4.5V–24V input, 500kHz–1.5MHz adjustable fSW, integrated compensation, no tracking/soft-start pins. | Targeted at higher-input industrial supplies; lacks SS/TR and MODE pins-no PFM/PWM selection or voltage tracking. | Prefer for 12V/24V intermediate bus conversion where tracking and light-load IQ are secondary to cost and input range. |
Compared with TPS62130ARGTR and MP2315GJ-Z, the ISL8002BFRZ-T uniquely combines 2MHz operation, -40°C to +125°C qualification, external soft-start/tracking, and boot-cap-free PMOS architecture-making it optimal for compact, thermally demanding, multi-rail FPGA and telecom POL designs.
Availability
ISL8002BFRZ-T is available at Aetrix Electronics and suitable for FPGA power delivery, industrial PLCs, and telecom baseband processors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ISL8002BFRZ-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 (formerly Intersil) is a global semiconductor leader specializing in microcontrollers, analog power management, and timing solutions for industrial, automotive, and communications markets.
The ISL8002BFRZ-T belongs to Renesas' high-efficiency, high-frequency synchronous buck regulator product line, designed specifically for space-constrained, thermally demanding point-of-load applications in FPGA, processor, and telecom infrastructure systems.
FAQ
What is the maximum junction temperature specification for the ISL8002BFRZ-T?
The ISL8002BFRZ-T is rated for a maximum junction temperature of +125°C, with thermal shutdown activating at 150°C and 25°C hysteresis. This extended temperature grade (FRZ suffix) differentiates it from the IRZ variant (–40°C to +85°C), enabling reliable 2A operation in industrial and harsh-environment applications where ambient temperatures exceed 85°C.
Does the ISL8002BFRZ-T require an external boot capacitor?
No, the ISL8002BFRZ-T does not require an external boot capacitor because it integrates a PMOS high-side switch. Unlike NMOS-based buck controllers, this architecture eliminates the need for charge-pump or bootstrap circuitry-reducing component count, PCB area, and potential failure points in compact POL designs.
How is output voltage set on the ISL8002BFRZ-T?
The ISL8002BFRZ-T uses a precision 0.600V feedback reference voltage at the FB pin. Output voltage is set via an external resistor divider (R1/R2) between VOUT and GND, where VOUT = 0.6 × (1 + R1/R2). The datasheet provides recommended values for common outputs (e.g., 1.8V: R1=200kΩ, R2=100kΩ), and the FB pin bias current is tightly controlled (<350nA) to minimize divider error.
Can the ISL8002BFRZ-T support voltage tracking for multiple rails?
Yes, the ISL8002BFRZ-T supports voltage tracking via its SS/TR pin. By connecting a resistor divider from a master rail to SS/TR and grounding the divider's midpoint, the ISL8002BFRZ-T's output ramps proportionally-enabling coincident, sequential, or ratiometric startup/shutdown with other regulators, critical for FPGA and multi-core processor power sequencing.
What protection features are integrated into the ISL8002BFRZ-T?
The ISL8002BFRZ-T integrates overcurrent protection (3.2A typical peak limit), short-circuit protection, thermal shutdown (150°C), VIN undervoltage lockout (2.7V rising threshold), VOUT overvoltage protection (90% of nominal), and negative current limiting (–1.8A). All protections are fully autonomous and do not require external components to function.
ISL8002BFRZ-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):
- 2V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 4V
- Current - Output:
- 2A
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN-EP (2x2)
ISL8002BFRZ-T FAQ
1.How can I place an order for ISL8002BFRZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL8002BFRZ-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 ISL8002BFRZ-T reliable?
The price and inventory of ISL8002BFRZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL8002BFRZ-T is usually 5 days.
3.What payment methods are accepted for ISL8002BFRZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL8002BFRZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL8002BFRZ-T?
ISL8002BFRZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL8002BFRZ-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 ISL8002BFRZ-T?
For technical support, including ISL8002BFRZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL8002BFRZ-T requirements.
6.How does Aetrix verify that ISL8002BFRZ-T is sourced from the original manufacturer or authorized distributors?
All ISL8002BFRZ-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 ISL8002BFRZ-T meets industry standards.
7.What is the process for return or replacement of ISL8002BFRZ-T?
All ISL8002BFRZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL8002BFRZ-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 ISL8002BFRZ-T part is unused and in its original packaging.
Return procedure for ISL8002BFRZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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