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Renesas ISL80030FRZ-T
- Part No.:
- ISL80030FRZ-T
- Manufacturer:
- Renesas
- Package:
- 8-VFDFN Exposed Pad
- Datasheet:
-
ISL80030FRZ-T.pdf
- Description:
- IC REG BUCK ADJ 3A 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,241
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Product details
Overview
ISL80030FRZ-T 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 switching frequency in PWM mode. It integrates low-rDS(ON) PMOS/NMOS power switches, eliminates boot capacitor requirement, supports 100% duty cycle, and targets point-of-load regulation in space-constrained industrial and telecom systems.
For engineers reviewing the ISL80030FRZ-T datasheet, ISL80030FRZ-T pinout, ISL80030FRZ-T application, or ISL80030FRZ-T equivalent, key selection criteria include its 1MHz PWM operation, 0.6V feedback reference, integrated soft-start/soft-stop, power-good signaling, and thermal/overcurrent protection - all in an 8-lead 2mm×2mm DFN package with exposed pad.
Technical Context
The ISL80030FRZ-T uses peak current-mode 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 sets output via external resistor divider, and the clamped 1.6V EAMP output limits maximum duty cycle.
It implements fast transient response through pulse-by-pulse current limiting and enables stable light-load operation without PFM mode - unlike the ISL80031 series. Protection includes overcurrent (4.5A typical peak limit), thermal shutdown (150°C), negative current detection (−2A threshold), and VOUT overvoltage/undervoltage monitoring via FB pin.
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. |
| Max Output Current | 3A continuous - sufficient for FPGA core rails, microcontroller SoCs, and DSP power domains. |
| Switching Frequency | 1MHz nominal - enables use of compact 1.0–3.3µH inductors and reduces EMI filtering burden vs lower-frequency converters. |
| Feedback Voltage | 0.600V ±6mV (−40°C to +85°C) - precise reference enabling accurate output regulation across temperature for 0.8V–3.3V outputs. |
| Quiescent Current | 7mA typical (no load) - optimized for active-system efficiency, not ultra-low-power standby. |
| Efficiency Peak | Up to 95% - achieved at mid-load with 5V input and 1.8V/3A output, minimizing thermal dissipation in dense PCB layouts. |
| Duty Cycle Range | 0% to 100% - allows dropout operation down to VOUT ≈ VIN, critical for battery-powered applications near end-of-discharge. |
Pinout & Package
ISL80030FRZ-T is housed in an RoHS-compliant 8-lead 2mm×2mm DFN package with exposed thermal pad (EPAD), designed for high-density PCB layouts and enhanced thermal performance via direct PGND connection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pins 1, 2) | Input power supply and internal bias source | Accepts 2.7–5.5V; requires ≥10µF ceramic decoupling close to pins to suppress switching noise and stabilize internal LDO. |
| EN (Pin 3) | Enable control input | Active-high logic: device enabled when >1.4V; pulled low disables regulator and discharges output via 100Ω PHASE 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 output voltage sensing | Connects to resistor divider; internal 0.6V reference compares against divider ratio to regulate VOUT with ±1% accuracy. |
| PGND (Pins 6, 7) | Power and analog ground return | Must be connected directly to PCB ground plane; multiple vias under EPAD required for optimal thermal and EMI performance. |
| PHASE (Pin 8) | Switching node connecting to inductor | Drives external output inductor; carries high di/dt; layout must minimize loop area to reduce EMI and voltage spikes. |
| EPAD | Exposed thermal pad | Electrically tied to PGND; mandatory connection to internal ground plane via ≥4 thermal vias for junction temperature control. |
Key Features
| Feature | Design Value |
|---|---|
| PMOS high-side switch | Eliminates boot capacitor requirement, reducing BOM count and PCB footprint while simplifying layout. |
| Integrated soft-start and soft-stop | 1ms typical soft-start ramp prevents inrush current; controlled discharge during disable avoids output voltage overshoot. |
| 100% duty-cycle capability | Enables operation with VOUT nearly equal to VIN, extending usable battery range in portable equipment. |
| Overcurrent and short-circuit protection | Peak current limit of 4.5A (typical) and SCP activation at FB < 0.3V provide robust fault tolerance without external circuitry. |
| Thermal and negative current protection | Shuts down at 150°C junction temp; disables both FETs if inductor current reaches −2A for two cycles, preventing reverse conduction damage. |
Applications
| Industrial Sensor Node Power | Telecom Line Card POL |
|---|---|
|
Use Scenario: Powering 3.3V/2A FPGA I/O banks and ADCs in remote environmental monitoring units with 5V backplane supply. IC Role / Device Role / Timing Role: Primary step-down regulator providing tightly regulated, low-noise 3.3V rail with fast load transient response. Use Value: 1MHz switching enables small 2.2µH inductor and 22µF output capacitance, fitting within 64mm² board area while maintaining <±1% output regulation. |
Use Scenario: Generating 1.2V/3A core voltage for network processor ASICs on carrier-grade line cards with strict thermal limits. IC Role / Device Role / Timing Role: High-efficiency POL converter operating from 3.3V or 5V intermediate bus, synchronized to system clock domain. Use Value: 95% peak efficiency and 7°C/W θJC minimize heat buildup in air-cooled chassis; PG signal sequences ASIC initialization. |
| Medical Imaging Module Supply | Gaming Console SoC Core Rail |
|
Use Scenario: Delivering clean, stable 1.8V/3A to CMOS image sensor interface ICs in portable ultrasound devices powered by 3.7V Li-ion battery. IC Role / Device Role / Timing Role: Battery-input buck regulator supporting 100% duty cycle to maintain output as battery discharges below 2.0V. Use Value: Ultra-low dropout operation extends usable battery life; integrated UVLO (2.7V) prevents brownout-induced system resets. |
Use Scenario: Regulating 1.05V/2.5A CPU core voltage in handheld gaming systems using 3.3V system rail. IC Role / Device Role / Timing Role: Fast-transient PWM buck converter responding to dynamic CPU load changes without external compensation. Use Value: Peak current-mode control delivers <50µs recovery from 0→3A load step; soft-start prevents GPU reset during boot. |
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 | 2.5A max output, 2MHz fixed frequency, no PG pin, 0.8V feedback reference | Lacks power-good signaling and 3A capability; suited for lower-current, cost-sensitive consumer designs | Select when 2.5A rating suffices and PG sequencing is unnecessary; verify 0.8V FB compatibility with existing resistor networks. |
| TPS54332DR | 3A, 1MHz, external compensation, adjustable soft-start, 0.8V feedback, SOIC-8 package | Requires external compensation components and larger PCB area; offers greater design flexibility but higher BOM count | Choose when fine-tuned loop response or adjustable soft-start timing is required; avoid if space-constrained DFN is mandatory. |
Compared with MP2315DJ-LF-Z and TPS54332DR, the ISL80030FRZ-T provides higher integration (no boot cap, internal compensation), tighter 0.6V feedback accuracy, and smaller 2mm×2mm footprint - making it optimal for miniaturized industrial and telecom POL where reliability and layout simplicity are prioritized over configurability.
Availability
ISL80030FRZ-T is available at Aetrix Electronics and suitable for industrial sensor nodes, telecom line card power, medical imaging modules, and gaming console SoC core rails requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ISL80030FRZ-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, formed from the merger of Renesas Technology and NEC Electronics, is a global leader in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and infrastructure markets.
The ISL80030FRZ-T belongs to Renesas' high-efficiency monolithic DC/DC converter product line, engineered specifically for space-constrained, high-reliability point-of-load applications demanding low quiescent current, robust protection, and minimal external components.
FAQ
What is the recommended input capacitor for ISL80030FRZ-T?
A minimum 10µF X5R/X7R ceramic capacitor placed as close as possible to VIN and PGND pins is required for stable operation and high-frequency noise suppression. For best EMI performance and ripple reduction, pair it with a 1–2.2µF ceramic capacitor in parallel. The datasheet specifies this value based on worst-case input ripple current and ESL minimization requirements specific to the ISL80030FRZ-T's 1MHz switching and internal current-sense architecture.
Does ISL80030FRZ-T support adjustable output voltage?
Yes, the ISL80030FRZ-T supports adjustable output voltage from 0.8V to 5.5V using an external resistor divider connected to the FB pin. The internal 0.600V reference sets VOUT = 0.6 × (1 + R1/R2), where R2 connects FB to GND. Table 2 in the datasheet provides standard resistor values for common outputs (e.g., 1.8V uses 200kΩ/100kΩ), and the ISL80030FRZ-T's tight FB tolerance ensures ≤±1% output accuracy across temperature.
How does the power-good (PG) signal behave during startup and fault conditions?
The PG pin of the ISL80030FRZ-T is an open-drain output pulled low during soft-start and whenever the FB voltage falls outside the ±15% regulation window (UVP: 85%, OVP: 117%). It transitions high only after output reaches regulation and remains stable for ≥1ms. This behavior enables safe sequencing of downstream logic, and the internal 5MΩ pull-up eliminates need for external resistor - a feature confirmed in the Pin Descriptions section of the ISL80030FRZ-T datasheet.
Can ISL80030FRZ-T operate with input voltage equal to output voltage?
Yes, the ISL80030FRZ-T supports 100% duty cycle operation, allowing VOUT to track VIN down to VOUT ≈ VIN – (IOUT × rDS(ON)_HS). With its 70mΩ PMOS high-side FET at 5V input, it can sustain ~3.3V output at 3A even as input drops to ~3.5V - critical for Li-ion battery applications nearing end-of-discharge. This capability is explicitly documented in the "100% Duty Cycle" section (page 17) of the ISL80030FRZ-T datasheet.
What thermal management practices are required for ISL80030FRZ-T at 3A continuous load?
At 3A continuous load, ISL80030FRZ-T requires direct connection of the EPAD to a solid PGND plane using ≥4 thermal vias (0.3mm diameter) under the pad, plus adequate copper pour on inner layers. The datasheet specifies θJC = 7°C/W and θJA = 70°C/W; achieving <60°C junction rise above ambient requires ≥2cm² of 2-oz copper connected to EPAD. Layout guidelines on page 18 mandate minimizing PHASE loop area to prevent localized heating that could trigger thermal shutdown.
ISL80030FRZ-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-VFDFN 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:
- 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-T FAQ
1.How can I place an order for ISL80030FRZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL80030FRZ-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 ISL80030FRZ-T reliable?
The price and inventory of ISL80030FRZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL80030FRZ-T is usually 5 days.
3.What payment methods are accepted for ISL80030FRZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL80030FRZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL80030FRZ-T?
ISL80030FRZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL80030FRZ-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 ISL80030FRZ-T?
For technical support, including ISL80030FRZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL80030FRZ-T requirements.
6.How does Aetrix verify that ISL80030FRZ-T is sourced from the original manufacturer or authorized distributors?
All ISL80030FRZ-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 ISL80030FRZ-T meets industry standards.
7.What is the process for return or replacement of ISL80030FRZ-T?
All ISL80030FRZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL80030FRZ-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 ISL80030FRZ-T part is unused and in its original packaging.
Return procedure for ISL80030FRZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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