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Renesas ISL80030FRZ-T7A
- Part No.:
- ISL80030FRZ-T7A
- Manufacturer:
- Renesas
- Package:
- 8-VFDFN Exposed Pad
- Datasheet:
-
ISL80030FRZ-T7A.pdf
- Description:
- IC REG BUCK ADJ 3A 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,248
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Product details
Overview
ISL80030FRZ-T7A from Renesas (formerly Intersil) is a monolithic synchronous buck DC/DC converter delivering up to 3A continuous output current from a 2.7V–5.5V input, operating at 1MHz fixed-frequency PWM mode with peak efficiency of 95%, integrated PMOS/NMOS power stages, and 100% duty-cycle capability for low-dropout operation in space-constrained POL applications.
For engineers reviewing the ISL80030FRZ-T7A datasheet, ISL80030FRZ-T7A pinout, ISL80030FRZ-T7A application, or ISL80030FRZ-T7A equivalent, key selection criteria include its 1MHz switching frequency, 0.6V feedback reference, 7mA typical quiescent current, absence of boot capacitor requirement due to PMOS high-side switch, and thermal shutdown at +150°C.
Technical Context
The ISL80030FRZ-T7A implements peak current-mode control with slope compensation (900mV/Ts), enabling stable operation at very low duty cycles and fast transient response. Its error amplifier features transconductance of 40µA/V and internal RC compensation (27pF/200kΩ), clamping VEAMP to 1.6V maximum.
It integrates 70mΩ PMOS and 60mΩ NMOS power switches, supports 100% duty cycle for VIN-to-VOUT dropout minimization, and uses zero-cross sensing only in PFM variants - not applicable here, as ISL80030FRZ-T7A is strictly PWM-mode with no pulse-skipping behavior.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 2.7V to 5.5V - supports single-cell Li-ion, USB-powered, and industrial 3.3V/5V rails without external LDO pre-regulation. |
| Max Output Current | 3A continuous - sufficient for FPGA core, DSP, or microcontroller SoC power domains with margin. |
| Switching Frequency | 1MHz ±15% - enables use of compact 1.0–3.3µH inductors and reduces EMI filtering burden vs lower-frequency converters. |
| Feedback Voltage | 0.600V ±1% - sets precise output voltage via external resistor divider; enables 0.8V–3.3V programmable outputs with <±1% regulation error. |
| Quiescent Current | 7mA typical - optimized for active-load efficiency; significantly lower than PFM variants but higher than ultra-low-IQ buck regulators. |
| Thermal Shutdown | +150°C with 25°C hysteresis - protects against sustained overload or poor PCB thermal design while allowing brief transient overloads. |
| Power-Good Delay | 0.5–2ms rising edge - provides reliable system reset timing after output stabilization, compatible with standard µC POR requirements. |
Pinout & Package
ISL80030FRZ-T7A is housed in an 8-lead 2mm × 2mm DFN package with exposed thermal pad (EPAD), RoHS-compliant, moisture sensitivity level MSL3, and optimized for high-current density layouts with minimal footprint (<64mm² total solution area).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pins 1, 2) | Input power supply rail | Supplies both power stage and internal bias regulator; requires ≥10µF ceramic decoupling placed adjacent to pins. |
| EN (Pin 3) | Enable control input | Active-high logic: device enabled when >1.4V; pulled low disables regulator and discharges output via 100Ω internal path. |
| PG (Pin 4) | Power-good open-drain output | Asserts low during soft-start and when VOUT falls outside ±15% regulation window; includes 5MΩ internal pull-up. |
| FB (Pin 5) | Feedback node for voltage regulation | Connects to resistor divider midpoint; monitors output and feeds error amplifier; bias current ≤350nA ensures accuracy. |
| PGND (Pins 6, 7) | Power and analog ground return | Must be connected directly to PCB ground plane; multiple vias under EPAD required for thermal and noise performance. |
| PHASE (Pin 8) | Switching node | Connects to inductor; carries high di/dt switching current; layout critical for EMI and efficiency. |
| EPAD | Exposed thermal pad | Electrically tied to PGND; mandatory connection to inner-layer ground plane via ≥4 thermal vias for thermal resistance θJC = 7°C/W. |
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. |
| 100% duty-cycle operation | Enables dropout as low as ~100mV at 3A, supporting applications where input voltage may dip close to output (e.g., battery end-of-life). |
| Integrated protection suite | Includes overcurrent (4.5A typ), short-circuit (VFB < 0.3V triggers 1/3-fSW mode), overtemperature (+150°C), UVLO (2.7V rising), and negative current (-2A limit). |
| Internal soft-start | Fixed 0.39–1.36ms ramp time prevents inrush current and output overshoot during startup across temperature and load conditions. |
| High-efficiency synchronous rectification | 70mΩ/60mΩ RDS(ON) MOSFETs enable >92% efficiency at 1.8V/2A (VIN=3.3V), reducing thermal load vs external diode solutions. |
Applications
| Industrial Sensor Node Power | Portable Medical Device Core Supply |
|---|---|
|
Use Scenario: Powering low-power ARM Cortex-M4 microcontroller and analog front-end in battery-operated environmental sensor nodes. IC Role / Device Role / Timing Role: Primary step-down regulator converting 3.7V Li-ion to 1.8V core rail with tight load-transient response. Use Value: 1MHz switching allows small 1.5µH inductor and 22µF output capacitance, minimizing board area while maintaining <±1% regulation under 0–3A dynamic load steps. |
Use Scenario: Supplying FPGA configuration and I/O banks in handheld ultrasound probe with strict EMI limits. IC Role / Device Role / Timing Role: High-efficiency POL converter delivering 2.5V/2.5A from 5V intermediate bus with fast transient recovery. Use Value: Peak current-mode control achieves <50µs recovery from 1A–3A load step, suppressing output droop below 50mV and meeting medical EMC Class B requirements. |
| Telecom Line Card Bias Supply | Gaming Console SoC Core Rail |
|
Use Scenario: Generating 1.2V/3A for ASIC signal processing on telecom line cards with 48V backplane-derived 5V input. IC Role / Device Role / Timing Role: Compact, thermally robust buck converter operating continuously at full load in confined airflow environments. Use Value: Exposed pad DFN package with θJA = 70°C/W enables operation at +85°C ambient without derating, verified per JEDEC JESD51-2. |
Use Scenario: Providing dynamically scaled core voltage to application processor in next-gen game console motherboard. IC Role / Device Role / Timing Role: Fast-response PWM regulator supporting DVFS transitions with minimal output voltage deviation. Use Value: Internal 0.6V reference and precision FB bias current (<350nA) ensure <±0.5% output accuracy across -40°C to +125°C junction range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP2315DJ-LF-Z | 2.5V–36V input, 3A, 500kHz–2.2MHz adjustable fSW, requires external bootstrap capacitor. | Broad input range suits 12V/24V industrial systems; lacks 100% duty cycle and PMOS architecture. | Select MP2315DJ-LF-Z only if input exceeds 5.5V or adjustable frequency is required; verify boot capacitor placement and loop compensation. |
| TPS54331DR | 3.5V–28V input, 3A, 570kHz fixed fSW, external compensation, N-channel high-side with boot cap. | Higher minimum input limits use in Li-ion or 3.3V-only systems; lower switching frequency increases inductor size. | Choose TPS54331DR when cost-sensitive designs accept larger magnetics and require TI's WEBENCH support; not drop-in for ISL80030FRZ-T7A. |
Compared with MP2315DJ-LF-Z and TPS54331DR, the ISL80030FRZ-T7A offers superior low-input-voltage operation (down to 2.7V), eliminates boot capacitor dependency, and delivers faster transient response due to fixed 1MHz PWM architecture - making it optimal for compact, battery-fed, or low-VIN POL applications where layout simplicity and thermal efficiency are prioritized.
Availability
ISL80030FRZ-T7A is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical devices, telecom line cards, and gaming console SoC power delivery requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ISL80030FRZ-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 full technical and manufacturing continuity for the ISL80030 family, including qualification to AEC-Q100 Grade 2 for automotive-adjacent applications.
The ISL80030 series was designed specifically for high-density point-of-load conversion in battery-powered and thermally constrained systems, emphasizing minimal external components, robust protection, and seamless integration into compact PCB layouts.
FAQ
What is the recommended input capacitor for ISL80030FRZ-T7A?
A minimum 10µF X5R/X7R ceramic capacitor must be placed as close as possible to the VIN pins (1 and 2) of the ISL80030FRZ-T7A to suppress high-frequency switching noise and stabilize the input rail. For best EMI performance and transient response, pair it with a 1µF ceramic in parallel. The datasheet specifies this value under "Pin Descriptions" and confirms effectiveness across the full 2.7V–5.5V input range and 0–3A load profile.
Does ISL80030FRZ-T7A support adjustable switching frequency?
No, ISL80030FRZ-T7A operates at a fixed 1MHz switching frequency, as confirmed in Table 1 of the FN8766 datasheet. It is part of the ISL80030 (PWM, 1MHz) variant group - unlike ISL80030A which runs at 2MHz. Frequency adjustment is not supported via external components or pin strapping; any attempt to modify timing will disrupt regulation stability.
Can ISL80030FRZ-T7A operate with input voltage equal to output voltage?
Yes, ISL80030FRZ-T7A supports 100% duty-cycle operation, enabling dropout voltages as low as ~100mV at 3A load. This allows it to maintain regulation when VIN approaches VOUT - critical for Li-ion battery applications nearing end-of-discharge. The feature is explicitly documented in the "Features" section and validated in "Theory of Operation" on page 17 of FN8766 Rev.2.00.
What is the purpose of the PHASE pin on ISL80030FRZ-T7A?
The PHASE pin on ISL80030FRZ-T7A is the switching node connecting the internal PMOS and NMOS power FETs to the external output inductor. It carries high di/dt current and must be routed with minimal loop area and direct connection to the inductor's SW terminal. During shutdown, a 100Ω internal resistor discharges the output through this pin, preventing floating voltage conditions.
How does the power-good (PG) signal behave during startup of ISL80030FRZ-T7A?
During startup, the PG pin of ISL80030FRZ-T7A remains low throughout the soft-start interval (0.39–1.36ms), then transitions high only after output voltage reaches and sustains within ±15% of the target (e.g., 0.51V–0.69V for 0.6V FB). The rising-edge delay is 0.5–2ms, and falling-edge response is 5µs - ensuring clean system-level power sequencing without false asserts.
ISL80030FRZ-T7A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-VFDFN 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:
- 3A
- Frequency - Switching:
- 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (2x2)
ISL80030FRZ-T7A FAQ
1.How can I place an order for ISL80030FRZ-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL80030FRZ-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 ISL80030FRZ-T7A reliable?
The price and inventory of ISL80030FRZ-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL80030FRZ-T7A is usually 5 days.
3.What payment methods are accepted for ISL80030FRZ-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL80030FRZ-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL80030FRZ-T7A?
ISL80030FRZ-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL80030FRZ-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 ISL80030FRZ-T7A?
For technical support, including ISL80030FRZ-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL80030FRZ-T7A requirements.
6.How does Aetrix verify that ISL80030FRZ-T7A is sourced from the original manufacturer or authorized distributors?
All ISL80030FRZ-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 ISL80030FRZ-T7A meets industry standards.
7.What is the process for return or replacement of ISL80030FRZ-T7A?
All ISL80030FRZ-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL80030FRZ-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 ISL80030FRZ-T7A part is unused and in its original packaging.
Return procedure for ISL80030FRZ-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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