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Renesas ISL80020FRZ-T7A
- Part No.:
- ISL80020FRZ-T7A
- Manufacturer:
- Renesas
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
ISL80020FRZ-T7A.pdf
- Description:
- IC REG BUCK ADJ 2A 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,698
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Product details
Overview
ISL80020FRZ-T7A from Renesas (formerly Intersil) is a monolithic synchronous buck DC/DC converter delivering up to 2A continuous output current from a 2.7V–5.5V input, operating at 1MHz switching frequency with 0.6V feedback reference and integrated PMOS/NMOS power stage. It supports 100% duty cycle operation and features internal soft-start, power-good signaling, and thermal shutdown-designed for point-of-load regulation in space-constrained industrial and telecom systems.
For engineers reviewing the ISL80020FRZ-T7A datasheet, ISL80020FRZ-T7A pinout, ISL80020FRZ-T7A application, or ISL80020FRZ-T7A equivalent, key selection criteria include its -40°C to +125°C extended temperature rating, 8-pin 2mm×2mm TDFN package with exposed thermal pad, peak efficiency up to 95%, and absence of boot capacitor requirement due to integrated PMOS high-side switch.
Technical Context
The ISL80020FRZ-T7A implements peak current-mode PWM control with slope compensation (900mV/Ts) and a transconductance error amplifier (40µA/V) internally compensated via 27pF/200kΩ network. Its 1MHz fixed-frequency oscillator enables predictable EMI behavior and supports small external inductors (e.g., 2.2µH).
It integrates low-rDS(ON) MOSFETs (117mΩ PMOS / 86mΩ NMOS at VIN=5V), eliminates boot capacitor dependency, and provides comprehensive protection: overcurrent (3.18A typical limit), short-circuit (via VFB <0.3V detection), negative current shutdown (-1.5A valley for 2 cycles), UVLO (2.7V rising threshold), 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 rail inputs without external regulators. |
| IOUT Max | 2A continuous - sufficient for FPGA I/O banks, microcontroller cores, and DSP peripherals. |
| fSW | 1MHz - enables compact magnetics (e.g., 2.2µH inductor) and balances efficiency vs. EMI. |
| VFB | 0.600V ±6mV - sets output voltage via resistor divider; enables precise 0.8V–5.5V programmability. |
| Efficiency | Up to 95% peak - minimizes thermal load in sealed enclosures and extends battery runtime. |
| Thermal Range | -40°C to +125°C junction - qualified for under-hood automotive ancillaries and industrial PLC modules. |
| Protection | OCP, SCP, UVP/OVP on PG, thermal shutdown, negative current limit - reduces need for external fault management circuitry. |
Pinout & Package
ISL80020FRZ-T7A uses an 8-pin 2mm×2mm TDFN package with exposed thermal pad (EPAD), RoHS-compliant, moisture sensitivity level (MSL) 3 per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input power supply | Bias source for internal LDO and power stage; requires ≥10µF ceramic decoupling near pin. |
| EN | Enable control | Active-high logic input (1.4V threshold); disables regulator and activates 100Ω discharge path when low. |
| SGND | Signal ground | Must be connected to EPAD; separates analog reference from power return paths. |
| PG | Power-good open-drain output | Pulled low during soft-start and fault conditions; includes 5MΩ internal pull-up for system sequencing. |
| FB | Feedback node | Connects to resistor divider; monitors output voltage for regulation and PG assertion (±15% window). |
| NC | No-connect | Internally unused; must be tied to EPAD for mechanical stability and thermal conduction. |
| PGND | Power/analog ground | Main return path for inductor current and IC ground; requires low-impedance plane connection. |
| PHASE | Switching node | Connects directly to inductor; carries high di/dt; discharges via 100Ω resistor during shutdown. |
| EPAD | Exposed thermal pad | Electrically tied to PGND; requires multiple vias to inner ground plane for thermal performance (θJC = 7°C/W). |
Key Features
| Feature | Design Value |
|---|---|
| PMOS high-side switch | Eliminates boot capacitor requirement, reducing BOM count and layout complexity. |
| 100% duty cycle capability | Enables dropout operation down to VOUT ≈ VIN − 0.2V at light loads, critical for low-VIN applications. |
| Integrated soft-start (1ms) | Prevents inrush current into output capacitors and avoids bus droop during power-up. |
| Internal compensation network | Removes need for external compensation components-simplifies design and improves repeatability. |
| 5MΩ internal PG pull-up | Supports direct interfacing with µC reset inputs without external pull-up resistors. |
Applications
| Industrial Sensor Node | Telecom Line Card |
|---|---|
Use Scenario: Compact remote sensor unit powered by 3.3V backplane with strict thermal envelope and wide ambient temperature range (-40°C to +85°C). IC Role / Device Role / Timing Role: Point-of-load regulator supplying 1.8V/2A to ARM Cortex-M7 MCU and 12-bit SAR ADC. Use Value: 95% peak efficiency and 125°C-rated operation ensure stable voltage under full load at elevated temperatures without heatsinking. | Use Scenario: High-density line card requiring multiple independent 1.2V/2A rails for SERDES PHYs with fast transient response. IC Role / Device Role / Timing Role: Primary buck converter regulating 1.2V from 3.3V intermediate bus; synchronized via external clock not supported, but 1MHz fixed frequency simplifies EMI filtering. Use Value: Peak current-mode control delivers <5% output deviation during 0→2A load steps, minimizing jitter in serial link timing. |
| Medical Imaging Module | Automotive ADAS Camera ECU |
Use Scenario: Portable ultrasound front-end with noise-sensitive analog signal chain and battery-powered operation. IC Role / Device Role / Timing Role: Low-noise POL supplying 2.5V/2A to CCD driver and precision DAC; PWM mode selected over PFM for consistent ripple spectrum. Use Value: Absence of boot capacitor and integrated MOSFETs reduce component count and board area by >30% versus discrete controller solutions. | Use Scenario: Rear-view camera module mounted near exhaust with ambient up to +105°C and ASIL-B functional safety requirements. IC Role / Device Role / Timing Role: Main 3.3V/2A supply for image sensor and ISP; thermal shutdown at +150°C prevents latch-up during thermal runaway events. Use Value: Extended -40°C to +125°C qualification ensures startup reliability at cold cranking (-40°C) and sustained operation in under-hood environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62864DRLR | 2A, 2.5V–5.5V VIN, 2MHz, 0.6V VFB, 1.45mm×1.45mm DSBGA - smaller footprint but lower max VIN and no 100% duty cycle. | Preferred for ultra-compact consumer wearables; unsuitable for 5.5V input or dropout-critical designs. | Select ISL80020FRZ-T7A when input exceeds 5.5V tolerance or 100% duty cycle is required. |
| MP2143GJ-Z | 2A, 2.5V–5.5V VIN, 1MHz, 0.6V VFB, 2mm×3mm QFN - same switching frequency but larger package and requires external bootstrap capacitor. | Suitable for cost-sensitive industrial controls where board area is less constrained than thermal performance. | Choose ISL80020FRZ-T7A for thermal-limited designs needing minimal external components and superior θJA (71°C/W). |
Compared with TPS62864DRLR and MP2143GJ-Z, the ISL80020FRZ-T7A uniquely combines 5.5V max input, 100% duty cycle, bootless PMOS architecture, and extended temperature rating-making it optimal for ruggedized embedded systems where input margin, thermal headroom, and component count are co-critical.
Availability
ISL80020FRZ-T7A is available at Aetrix Electronics and suitable for industrial sensor nodes, telecom line cards, medical imaging modules, and automotive ADAS camera ECUs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ISL80020FRZ-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 Corporation is a global semiconductor leader delivering microcontrollers, analog power, and SoC solutions for automotive, industrial, and infrastructure markets.
The ISL80020FRZ-T7A belongs to Renesas' high-efficiency monolithic buck converter family, engineered specifically for space-constrained, thermally demanding point-of-load applications in harsh-environment electronics.
FAQ
What is the maximum input voltage rating for the ISL80020FRZ-T7A?
The ISL80020FRZ-T7A has an absolute maximum input voltage rating of 6V DC or 7V for 20ms transients. Its recommended operating VIN range is 2.7V to 5.5V. Exceeding 6V continuously risks permanent damage to the internal PMOS/NMOS power stage and control circuitry. The device's UVLO rising threshold is 2.7V, ensuring reliable startup from weak or partially discharged sources.
Does the ISL80020FRZ-T7A require an external boot capacitor?
No, the ISL80020FRZ-T7A does not require an external boot capacitor. Its integrated PMOS high-side switch eliminates the need for charge-pump or bootstrap circuitry-reducing BOM count, PCB area, and potential failure points. This architecture simplifies layout and improves reliability in high-vibration or thermally cycling environments where capacitor solder joints may fatigue.
What is the function of the NC pin on the ISL80020FRZ-T7A?
The NC (No Connect) pin on the ISL80020FRZ-T7A is internally unconnected but must be electrically tied to the exposed thermal pad (EPAD) for mechanical stability and optimal thermal conduction. Leaving it floating can compromise solder joint integrity during reflow and degrade heat dissipation. Per datasheet Figure 3 and Pin Descriptions, connecting NC to EPAD ensures uniform thermal expansion and maintains θJC = 7°C/W performance.
How does the ISL80020FRZ-T7A handle overcurrent conditions?
The ISL80020FRZ-T7A detects overcurrent via its current-sense amplifier (CSA) monitoring the PMOS drain-source voltage, with a gain of 300mV/A. When CSA output reaches ~3.18A (typical limit), the OCP comparator immediately turns off the PMOS. Recovery occurs only after the next switching cycle, preventing latch-up. This cycle-by-cycle limiting protects against short circuits while maintaining regulation under transient overload.
Can the ISL80020FRZ-T7A operate at 100% duty cycle, and under what conditions?
Yes, the ISL80020FRZ-T7A supports 100% duty cycle operation at 1MHz switching frequency. This enables dropout regulation where VOUT approaches VIN (e.g., 3.3V out from 3.6V input), critical for battery-powered systems nearing end-of-discharge. Duty cycle is limited to <100% at 2MHz variants (e.g., ISL80020A), but ISL80020FRZ-T7A's 1MHz configuration guarantees full conduction capability across its entire input/output range.
ISL80020FRZ-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)
ISL80020FRZ-T7A FAQ
1.How can I place an order for ISL80020FRZ-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL80020FRZ-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 ISL80020FRZ-T7A reliable?
The price and inventory of ISL80020FRZ-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL80020FRZ-T7A is usually 5 days.
3.What payment methods are accepted for ISL80020FRZ-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL80020FRZ-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL80020FRZ-T7A?
ISL80020FRZ-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL80020FRZ-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 ISL80020FRZ-T7A?
For technical support, including ISL80020FRZ-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL80020FRZ-T7A requirements.
6.How does Aetrix verify that ISL80020FRZ-T7A is sourced from the original manufacturer or authorized distributors?
All ISL80020FRZ-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 ISL80020FRZ-T7A meets industry standards.
7.What is the process for return or replacement of ISL80020FRZ-T7A?
All ISL80020FRZ-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL80020FRZ-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 ISL80020FRZ-T7A part is unused and in its original packaging.
Return procedure for ISL80020FRZ-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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