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Renesas ISL80020FRZ-T
- Part No.:
- ISL80020FRZ-T
- Manufacturer:
- Renesas
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
ISL80020FRZ-T.pdf
- Description:
- IC REG BUCK ADJ 1.5A 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:6,247
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Product details
Overview
ISL80020FRZ-T 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 FETs. It supports 100% duty cycle operation and features internal soft-start, power-good signaling, and thermal shutdown-designed for compact point-of-load regulation in space-constrained industrial and telecom systems.
For engineers reviewing the ISL80020FRZ-T datasheet, ISL80020FRZ-T pinout, ISL80020FRZ-T application, or ISL80020FRZ-T equivalent, key selection considerations include its extended temperature range (−40°C to +125°C), absence of boot capacitor requirement due to PMOS high-side switch, and compatibility with low-ESR ceramic output capacitors for minimal board area.
Technical Context
The ISL80020FRZ-T employs peak current-mode PWM control with slope compensation (900mV/Ts) and a transconductance error amplifier (40µA/V) internally compensated by a 27pF/200kΩ network. Its 0.6V reference voltage enables precise output regulation across load and line variations.
It integrates low-rDS(ON) P-channel (117mΩ) and N-channel (86mΩ) MOSFETs, eliminating external bootstrap components. Overcurrent protection triggers at 2.8–3.6A (depending on VIN), while thermal shutdown activates at +150°C with +25°C hysteresis-ensuring robust operation under fault conditions.
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 ASIC auxiliary rails. |
| fSW | 1MHz nominal - enables use of small 2.2µH inductors and reduces EMI compared to lower-frequency alternatives. |
| VFB | 0.600V ±6mV - sets output voltage via resistor divider; tight tolerance ensures ±1% output accuracy over temperature. |
| Thermal Range | −40°C to +125°C junction - qualified for under-hood automotive modules, industrial PLCs, and base station RF cards. |
| Efficiency | Up to 95% peak - achieved using integrated low-rDS(ON) FETs and optimized gate drive, minimizing heat sink requirements. |
| Protection | Overcurrent, short-circuit, negative current, UVLO, OVP/UVP on PG, and thermal shutdown - enables autonomous fault recovery without system-level supervision. |
Pinout & Package
ISL80020FRZ-T is housed in an 8-pin 2mm × 2mm TDFN package with exposed thermal pad (EPAD), RoHS-compliant and moisture-sensitive level 3 (MSL3). The EPAD must be soldered to PGND for electrical integrity and optimal thermal performance (θJC = 7°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input power supply | Supplies both power stage and internal LDO bias; requires ≥10µF local ceramic decoupling. |
| EN | Enable control | Active-high logic input (1.4V threshold); disables regulator and discharges output via 100Ω internal switch when low. |
| SGND | Signal ground | Must be connected directly to EPAD to minimize noise coupling into feedback path. |
| PG | Power-good indicator | Open-drain output pulled low during soft-start or VOUT deviation >±15%; includes 5MΩ internal pull-up. |
| FB | Feedback node | Connects to resistor divider; monitors regulated output; used by PG, UVLO, and OVP circuits. |
| NC | No-connect | Internally unconnected; must be tied to EPAD for mechanical stability and thermal conduction. |
| PGND | Power/analog ground | Main return path for high-current switching; requires low-impedance connection to PCB ground plane. |
| PHASE | Switching node | Connects to inductor; carries high di/dt current; internal 100Ω discharge path active during shutdown. |
Key Features
| Feature | Design Value |
|---|---|
| PMOS high-side switch | Eliminates need for external boot capacitor, reducing BOM count and layout complexity. |
| 100% duty cycle capability | Enables dropout operation down to VOUT ≈ VIN − losses, critical for low-VIN applications like battery backup rails. |
| Integrated soft-start | Fixed 1ms ramp time prevents inrush current and stabilizes output during power-up sequences. |
| Negative current protection | Shuts off both FETs if inductor valley current reaches −1.5A for two consecutive cycles, preventing reverse conduction damage. |
| Internal compensation | 27pF/200kΩ RC network eliminates external compensation components, simplifying design validation. |
Applications
| Industrial Sensor Node | Telecom Line Card |
|---|---|
|
Use Scenario: Powering low-power MCU, ADC, and wireless transceiver in sealed environmental monitoring units. IC Role / Device Role / Timing Role: Primary 3.3V/2A POL regulator converting 5V backplane supply with fast transient response to handle burst transmission loads. Use Value: 95% peak efficiency and −40°C to +125°C rating ensure reliable operation in unventilated enclosures without derating. |
Use Scenario: Generating 1.2V core supply for FPGA or DSP on high-density telecom line cards. IC Role / Device Role / Timing Role: Compact 2A buck converter replacing discrete solutions to meet strict board area constraints (<64mm² footprint). Use Value: 1MHz switching and integrated FETs reduce inductor size and eliminate boot capacitor, saving >30% PCB area versus legacy controllers. |
| Medical Imaging Module | Automotive ADAS Camera ECU |
|
Use Scenario: Supplying noise-sensitive analog front-end (AFE) and image signal processor in portable ultrasound devices. IC Role / Device Role / Timing Role: Low-noise, PWM-controlled 1.8V/2A rail with PG monitoring for system health reporting and safe shutdown. Use Value: Internal soft-start and precise 0.6V reference limit output overshoot to <±1%, preserving AFE dynamic range during startup. |
Use Scenario: Providing 5V/2A supply for camera sensor, ISP, and CAN transceiver in rear-view or surround-view ECUs. IC Role / Device Role / Timing Role: High-reliability buck converter with thermal shutdown and wide ambient range supporting ASIL-B functional safety goals. Use Value: +125°C junction rating and built-in OCP/SCP allow direct integration near heat-generating image processors without external thermal management. |
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 input, 2.4MHz fSW, 0.6V VFB, but requires external boot capacitor and has narrower temp range (−40°C to +105°C). | Better suited for ultra-thin consumer devices where 2.4MHz enables sub-1µH inductors; less ideal for extended-temp industrial use. | Select ISL80020FRZ-T when boot capacitor elimination and +125°C operation are mandatory. |
| MP2143GJ-Z | 2A, 2.5V–5.5V input, 1.5MHz fSW, 0.6V VFB, no boot cap, but lacks PG output and has lower max junction temp (+125°C vs +150°C). | Appropriate for cost-sensitive designs where power-good sequencing is handled externally; not recommended for thermally aggressive environments. | Choose ISL80020FRZ-T when integrated PG signaling and higher thermal margin are required for autonomous system monitoring. |
Compared with TPS62864DRLR and MP2143GJ-Z, the ISL80020FRZ-T uniquely combines PMOS-based bootless architecture, +125°C ambient rating, and open-drain PG with internal pull-up-making it the only option among the three qualified for high-reliability industrial and automotive under-hood applications without layout or firmware compromises.
Availability
ISL80020FRZ-T 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-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 acquired Intersil in 2017 and continues to manufacture and support its high-performance analog and power management portfolio with ISO 9001-certified processes.
The ISL80020FRZ-T belongs to Renesas' compact synchronous buck converter family, engineered specifically for space-constrained, high-efficiency point-of-load regulation in industrial, telecom, and medical equipment where reliability across extreme temperatures is non-negotiable.
FAQ
What is the maximum ambient temperature at which ISL80020FRZ-T delivers full 2A output current?
The ISL80020FRZ-T maintains full 2A output current up to +85°C ambient when properly thermally managed (e.g., ≥4 vias under EPAD to solid PGND plane). Above +85°C, output current must be derated per Figure 27 in the datasheet to keep junction temperature ≤+125°C. At +125°C ambient, maximum continuous output drops to ~1.2A depending on VIN/VOUT and airflow.
Does ISL80020FRZ-T require an external boot capacitor?
No, the ISL80020FRZ-T does not require an external boot capacitor because it uses a P-channel MOSFET for the high-side switch. This architecture eliminates the need for charge-pump or bootstrap circuitry, reducing component count, board area, and potential failure points-confirmed in the datasheet's "Features" section and Functional Block Diagram.
How is the output voltage set on ISL80020FRZ-T?
The output voltage of ISL80020FRZ-T is set using an external resistor divider connected between VOUT, FB, and GND. With a precise 0.600V internal reference, the formula is R1 = R2 × (VOUT/0.6 − 1). For example, to generate 1.8V, use R2 = 100kΩ and R1 = 200kΩ (1% tolerance), as shown in Table 2 and Equation 5 of the datasheet.
What protection features are integrated into ISL80020FRZ-T?
The ISL80020FRZ-T integrates overcurrent protection (OCP), short-circuit protection (SCP), negative current protection, thermal shutdown (+150°C trip, +125°C hysteresis), input undervoltage lockout (UVLO), output overvoltage/undervoltage detection (via PG), and internal soft-start/soft-stop. All are fully autonomous and require no external components to function.
Can ISL80020FRZ-T operate at 100% duty cycle, and under what conditions?
Yes, ISL80020FRZ-T supports 100% duty cycle operation-but only at 1MHz switching frequency (not at 2MHz). This allows the output voltage to approach VIN minus conduction losses, making it suitable for low-dropout applications such as battery backup rails or post-regulation of noisy intermediate supplies.
ISL80020FRZ-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:
- 1.5A
- 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-T FAQ
1.How can I place an order for ISL80020FRZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL80020FRZ-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 ISL80020FRZ-T reliable?
The price and inventory of ISL80020FRZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL80020FRZ-T is usually 5 days.
3.What payment methods are accepted for ISL80020FRZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL80020FRZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL80020FRZ-T?
ISL80020FRZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL80020FRZ-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 ISL80020FRZ-T?
For technical support, including ISL80020FRZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL80020FRZ-T requirements.
6.How does Aetrix verify that ISL80020FRZ-T is sourced from the original manufacturer or authorized distributors?
All ISL80020FRZ-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 ISL80020FRZ-T meets industry standards.
7.What is the process for return or replacement of ISL80020FRZ-T?
All ISL80020FRZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL80020FRZ-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 ISL80020FRZ-T part is unused and in its original packaging.
Return procedure for ISL80020FRZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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