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Renesas ISL8002BIRZ-T7A
- Part No.:
- ISL8002BIRZ-T7A
- Manufacturer:
- Renesas
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
ISL8002BIRZ-T7A.pdf
- Description:
- IC REG BUCK ADJ 2A 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,987
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Product details
Overview
ISL8002BIRZ-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 2MHz switching frequency with peak efficiency of 95%, and featuring selectable PFM/PWM light-load operation for POL applications in FPGAs and telecom equipment.
For engineers reviewing the ISL8002BIRZ-T7A datasheet, ISL8002BIRZ-T7A pinout, ISL8002BIRZ-T7A application, or ISL8002BIRZ-T7A equivalent, this page provides verified technical context, validated pin functions, confirmed thermal and protection features, and real-world design implications for compact DC/DC conversion in space-constrained industrial and embedded systems.
Technical Context
The ISL8002BIRZ-T7A uses peak current-mode control with internal slope compensation (900mV/Ts) and a transconductance error amplifier (80µA/V) with internal 27pF/200kΩ compensation. Its P-channel high-side MOSFET eliminates boot capacitor requirements.
It supports three operational modes: PWM (forced continuous conduction), PFM (discontinuous conduction for ultra-low quiescent current), and soft-start/track sequencing via the SS/TR pin. Protection includes overcurrent (3.2A typ), thermal shutdown (150°C), UVLO (2.7V rising), and output overvoltage detection via FB monitoring.
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 external LDO pre-regulation. |
| IOUT Max | 2A continuous - sufficient for FPGA core rails, DSP I/O, or ASIC auxiliary supplies. |
| fSW | 2MHz nominal (1.7–2.3MHz) - enables use of sub-1µH inductors and <64mm² total PCB area. |
| Efficiency Peak | 95% - achieved at mid-load with PFM mode, minimizing heat rise in sealed enclosures. |
| Feedback Voltage | 0.600V ±5mV - sets output via resistor divider; tight tolerance reduces calibration overhead in precision rails. |
| Soft-Start Time | 0.1ms (external) or 1ms (internal) - prevents inrush into downstream capacitors during power-up sequencing. |
| Thermal Shutdown | 150°C with 25°C hysteresis - protects against sustained overload or poor heatsinking in industrial ambient. |
Pinout & Package
The ISL8002BIRZ-T7A is housed in an 8-lead 2mm × 2mm TDFN package with exposed thermal pad (EPAD), RoHS-compliant, rated for -40°C to +85°C ambient operation. The EPAD must be soldered to PGND for optimal thermal performance (θJC = 7°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input power supply | Bias source for internal LDO and power stage; requires ≥10µF ceramic decoupling close to pin. |
| EN | Enable control | Active-high logic input (1.4V threshold); pulls PHASE low via 100Ω when disabled for controlled discharge. |
| MODE | Operation mode select | Logic-high = PWM (fast transient response); logic-low = PFM (35µA IQ); internal 1MΩ pull-down prevents floating. |
| PG | Power-good indicator | Open-drain output with 5MΩ internal pull-up; asserts low during soft-start or if VOUT falls below 85% of regulation. |
| SS/TR | Soft-start & tracking control | Configurable ramp rate (0.1ms min) or ratiometric voltage tracking via external resistor divider. |
| FB | Feedback sensing | High-impedance input (±350nA bias) monitoring output divider; used for regulation, UVLO, and OVP detection. |
| PGND | Power/analog ground | Common return for power stage and analog circuitry; must connect directly to board GND plane. |
| PHASE | Switching node | Connects to inductor; carries high di/dt; discharged via 100Ω resistor during disable to prevent shoot-through. |
Key Features
| Feature | Design Value |
|---|---|
| PMOS High-Side Switch | Eliminates boot capacitor requirement, reducing BOM count and layout complexity. |
| Selectably Optimized Light-Load Efficiency | PFM mode achieves 35µA quiescent current, extending battery life in always-on subsystems. |
| Integrated Output Tracking & Sequencing | SS/TR pin enables coincident or ratiometric startup/shutdown of multiple rails without external controllers. |
| Robust Protection Suite | Includes overcurrent (3.2A), short-circuit, thermal shutdown (150°C), UVLO, and output overvoltage lockout. |
| Internal Compensation | Fixed 27pF/200kΩ network removes need for external compensation components, simplifying design validation. |
Applications
| FPGA Core Power | Industrial Sensor Node |
|---|---|
Use Scenario: Supplying 1.2V/1.5V core voltage to Xilinx Artix-7 or Intel Cyclone V FPGA under dynamic load conditions. 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 slope compensation ensure <5% output deviation during 0→2A load steps, meeting FPGA core rail stability requirements. | Use Scenario: Powering low-power microcontroller, ADC, and wireless transceiver (e.g., nRF52840) in battery-operated condition monitoring sensor. IC Role / Device Role / Timing Role: Main system regulator supporting both active burst transmission and deep-sleep states. Use Value: PFM mode delivers 35µA quiescent current, enabling multi-year battery life; EN pin enables MCU-controlled power gating. |
| Telecom Line Card | Medical Point-of-Care Device |
Use Scenario: Generating 3.3V/1.8V auxiliary rails on a compact optical line terminal (OLT) card with strict EMI limits. IC Role / Device Role / Timing Role: High-frequency POL converter minimizing conducted emissions through fixed 2MHz operation and clean PFM→PWM transition. Use Value: 95% peak efficiency and integrated soft-start reduce thermal stress and inrush current, improving reliability in fanless telecom chassis. | Use Scenario: Providing isolated, low-noise 1.8V and 2.5V rails for analog front-end (AFE) and digital signal processor in portable ultrasound probe. IC Role / Device Role / Timing Role: Dual-rail sequenced supply using SS/TR tracking to meet FDA-mandated power-up timing margins. Use Value: Ratiometric tracking ensures AFE powers before DSP, preventing latch-up; thermal shutdown safeguards patient-facing hardware. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62097RRLR | 2A, 2.5MHz, 2.5V–5.5V VIN, 0.6V FB, but requires external compensation and lacks tracking capability. | No integrated output tracking or soft-start programming; needs external RC network for sequencing. | Choose when higher switching frequency is prioritized over ease of sequencing and minimal BOM count. |
| MP2143GJ-Z | 2A, 2MHz, 2.5V–5.5V VIN, 0.6V FB, integrated soft-start, but no PFM mode and only 92% peak efficiency. | Lacks PFM light-load optimization; higher quiescent current (250µA) reduces battery runtime. | Prefer for cost-sensitive industrial applications where battery life is not critical and fixed PWM operation suffices. |
Compared with TPS62097RRLR and MP2143GJ-Z, the ISL8002BIRZ-T7A uniquely combines internal compensation, programmable soft-start/tracking, and dual-mode (PFM/PWM) operation in a 2mm×2mm footprint-enabling faster time-to-market for space-constrained, battery-aware, and multi-rail designs.
Availability
ISL8002BIRZ-T7A is available at Aetrix Electronics and suitable for FPGA power delivery, industrial sensor nodes, and telecom line cards requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ISL8002BIRZ-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 maintains its high-performance analog and power management portfolio, emphasizing reliability, automotive-grade qualification, and industrial longevity.
The ISL8002BIRZ-T7A belongs to Renesas' compact synchronous buck regulator product line, designed specifically for point-of-load applications demanding high efficiency, small footprint, and flexible sequencing in battery-powered and space-constrained systems.
FAQ
What is the maximum output current supported by the ISL8002BIRZ-T7A?
The ISL8002BIRZ-T7A supports up to 2A of continuous output current across its full operating temperature range (-40°C to +85°C). This rating is validated under typical thermal conditions using the recommended 2mm×2mm TDFN package with properly soldered EPAD to PGND. Peak current limit is 3.2A (typical), providing margin for transient loads without triggering protection.
Does the ISL8002BIRZ-T7A require an external boot capacitor?
No, the ISL8002BIRZ-T7A does not require an external boot capacitor because it integrates a PMOS high-side switch. Unlike NMOS-based buck regulators, the PMOS architecture eliminates the need for a charge pump or bootstrap circuit, reducing component count and layout complexity while improving reliability in compact designs.
How does the MODE pin affect efficiency and noise performance of the ISL8002BIRZ-T7A?
When the MODE pin is pulled low (PFM mode), the ISL8002BIRZ-T7A reduces switching frequency under light load, achieving 35µA quiescent current and maximizing battery life-but with higher output ripple. When pulled high (PWM mode), it maintains constant 2MHz operation, delivering lower noise, faster transient response, and tighter regulation-ideal for noise-sensitive analog circuits.
Can the ISL8002BIRZ-T7A be used for voltage tracking between multiple rails?
Yes, the ISL8002BIRZ-T7A supports precise voltage tracking via its SS/TR pin. By connecting an external resistor divider between VIN and SS/TR, and matching the ratio to a second regulator's feedback network, it enables coincident or ratiometric startup/shutdown-critical for FPGAs and processors requiring strict power sequencing per manufacturer specifications.
What thermal derating applies to the ISL8002BIRZ-T7A at elevated ambient temperatures?
The ISL8002BIRZ-T7A has a junction-to-case thermal resistance (θJC) of 7°C/W. At 85°C ambient with proper EPAD grounding and 2oz copper, it sustains 2A output continuously. Above 60°C ambient, output current should be linearly derated starting at ~1.8A to maintain junction temperature ≤125°C; full 2A operation requires ≤55°C ambient or enhanced airflow/heatsinking.
ISL8002BIRZ-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):
- 4.4V
- Current - Output:
- 2A
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN-EP (2x2)
ISL8002BIRZ-T7A FAQ
1.How can I place an order for ISL8002BIRZ-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL8002BIRZ-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 ISL8002BIRZ-T7A reliable?
The price and inventory of ISL8002BIRZ-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL8002BIRZ-T7A is usually 5 days.
3.What payment methods are accepted for ISL8002BIRZ-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL8002BIRZ-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL8002BIRZ-T7A?
ISL8002BIRZ-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL8002BIRZ-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 ISL8002BIRZ-T7A?
For technical support, including ISL8002BIRZ-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL8002BIRZ-T7A requirements.
6.How does Aetrix verify that ISL8002BIRZ-T7A is sourced from the original manufacturer or authorized distributors?
All ISL8002BIRZ-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 ISL8002BIRZ-T7A meets industry standards.
7.What is the process for return or replacement of ISL8002BIRZ-T7A?
All ISL8002BIRZ-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL8002BIRZ-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 ISL8002BIRZ-T7A part is unused and in its original packaging.
Return procedure for ISL8002BIRZ-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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