My Inquiry
My Account
Renesas ISL8026FRTAJZ-T7A
- Part No.:
- ISL8026FRTAJZ-T7A
- Manufacturer:
- Renesas
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
ISL8026FRTAJZ-T7A.pdf
- Description:
- IC REG BUCK ADJ 6A 16TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,665
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ISL8026FRTAJZ-T7A from Renesas (formerly Intersil) is a monolithic synchronous buck DC/DC regulator delivering 6A continuous output current from a 2.5V–5.5V input, featuring integrated 36mΩ P-channel and 13mΩ N-channel MOSFETs, 1MHz default switching frequency, and operation up to +125°C ambient. It serves as a high-efficiency point-of-load (POL) power supply for microcontrollers, FPGAs, and SoCs in industrial and embedded systems.
For engineers reviewing the ISL8026FRTAJZ-T7A datasheet, ISL8026FRTAJZ-T7A pinout, ISL8026FRTAJZ-T7A application, or ISL8026FRTAJZ-T7A equivalent, this page provides verified technical context, package mapping, thermal performance data, fault protection behavior, and real-world POL design considerations - all specific to the -40°C to +125°C temperature grade with TQFN-16 (3×3 mm) packaging.
Technical Context
The ISL8026FRTAJZ-T7A uses current-mode control architecture enabling fast transient response, stable loop behavior at low duty cycles, and precise regulation across load, line, and temperature. Its internal 100% duty-cycle capability supports <180mV dropout at 6A, critical for low-VOUT applications like 0.8V core rails.
It supports both forced continuous conduction mode (CCM) and discontinuous conduction mode (DCM), selectable via the SYNC pin, allowing trade-offs between EMI suppression (CCM) and light-load efficiency (DCM). Frequency is adjustable from 500kHz to 4MHz using an external resistor on the FS pin, with default 1MHz set by tying FS to VIN.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5V to 5.5V - supports single-cell Li-ion, USB PD, and intermediate bus rails without pre-regulation. |
| Max Output Current | 6A continuous - sufficient for mid-tier FPGA I/O banks or dual-core application processors. |
| Default Switching Frequency | 1MHz - balances inductor size, efficiency, and EMI for compact POL designs. |
| Reference Voltage Accuracy | ±1.5% over –40°C to +125°C - ensures tight VOUT tolerance under full industrial temperature stress. |
| High-Side RDS(on) | 36mΩ typical at 5V VIN - minimizes conduction loss and improves full-load efficiency to ≥95%. |
| Thermal Rating | Rated for –40°C to +125°C ambient - validated for extended operation in sealed industrial enclosures. |
| Package | 16-pin 3×3 mm TQFN with exposed pad - enables ≤142mm² total PCB footprint and low θJA = 47°C/W. |
Pinout & Package
ISL8026FRTAJZ-T7A is housed in a RoHS-compliant, lead-free 16-lead 3×3 mm TQFN package with an exposed thermal pad (EPAD) that must be soldered to SGND for optimal thermal performance and electrical stability. Maximum package height is 0.8 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pins 1,2,16) | Input power supply | Accepts 2.5–5.5V; requires ≥2×22µF ceramic decoupling close to pins for stability and ripple suppression. |
| PHASE (Pins 13–15) | Switching node | Connects directly to inductor; carries high di/dt; internal 100Ω discharge path during shutdown prevents voltage ring. |
| PGND/SGND (Pin 10) | Power/signal ground reference | Single-point connection point for feedback, compensation, and PG circuitry - critical for noise immunity. |
| PGND (Pins 11,12) | Power ground return | Low-impedance path for high-current switch return; must be tied to EPAD and SGND with multiple vias. |
| FB (Pin 8) | Feedback input | Senses output voltage via external resistor divider; sets VOUT = 0.6V × (1 + R2/R3); monitors regulation for PG assertion. |
| COMP (Pin 9) | Error amplifier output | Provides compensation network interface; tied to VIN for internal compensation or used with external RC for custom loop tuning. |
| EN (Pin 5) | Enable control | Active-high logic input; pulls output capacitor to GND via internal soft-stop switch when disabled. |
| FS (Pin 6) | Frequency select | Resistor-to-GND sets fSW from 500kHz–4MHz; default 1MHz when pulled to VIN - matches ISL8026 (not ISL8026A). |
| SS (Pin 7) | Soft-start control | 1ms internal ramp when shorted to SGND; capacitor-based adjustment supports controlled inrush limiting. |
| PG (Pin 3) | Power-good indicator | Open-drain output with 1ms delay after regulation; asserts high when VOUT is within ±8% of target. |
| SYNC (Pin 4) | Mode selection | Logic-high = PWM mode; logic-low = PFM mode; external clock input up to 4MHz for synchronization. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated MOSFETs | 36mΩ P-ch HS + 13mΩ N-ch LS FETs reduce BOM count and improve full-load efficiency vs discrete solutions. |
| 100% Duty-Cycle Operation | Enables <180mV dropout at 6A - essential for ultra-low VOUT applications such as 0.8V processor cores. |
| Hiccup-Mode OCP | Auto-restart current limiting protects against sustained shorts without thermal runaway or latch-up. |
| Internal/External Compensation | Flexible loop tuning: internal compensation simplifies layout; external COMP allows optimization for varied L/C combinations. |
| Soft-Stop Output Discharge | Active discharge of VOUT via internal switch during disable prevents floating rail issues in multi-rail sequencing. |
| Overtemperature Protection | Thermal shutdown at +150°C with 25°C hysteresis ensures safe recovery after overload or airflow loss. |
Applications
| Microcontroller Core Power | FPGA I/O Bank Supply |
|---|---|
|
Use Scenario: Providing clean, tightly regulated 1.2V or 1.8V to ARM Cortex-M7 or RISC-V SoC cores in industrial gateways. IC Role / Device Role / Timing Role: Primary POL regulator with fast transient response to handle burst-mode CPU activity. Use Value: 1.5% reference accuracy over –40°C to +125°C maintains timing margin integrity under thermal stress. |
Use Scenario: Powering configurable I/O banks on Xilinx Artix-7 or Intel Cyclone V FPGAs in test equipment. IC Role / Device Role / Timing Role: High-current, low-noise DC/DC converter supporting multiple VCCIO domains. Use Value: Forced CCM mode (via SYNC pin) suppresses audible noise and EMI during high-speed data capture. |
| Li-ion Powered Portable Instrument | Industrial PC Power Rail |
|
Use Scenario: Regulating 3.3V from a 3.6V nominal Li-ion cell in handheld multimeters or data loggers. IC Role / Device Role / Timing Role: Efficient step-down converter operating down to 2.5V input during battery depletion. Use Value: 95% peak efficiency at 3.3V/3A extends runtime; PFM mode reduces quiescent current to 50µA at light loads. |
Use Scenario: Generating 5V or 2.5V auxiliary rails in DIN-rail mounted IPCs with limited airflow. IC Role / Device Role / Timing Role: Thermally robust POL regulator with exposed-pad TQFN package and +125°C rating. Use Value: θJA = 47°C/W and EPAD grounding enable reliable 6A operation without heatsinks in confined enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP2315DJ-LF-P | 4A rated, 2.5–5.5V input, fixed 1.2MHz fSW, no SYNC pin, smaller 2×2 mm QFN. | Limited to lower current; lacks PFM/PWM mode selection and external frequency programming. | Select when board space is constrained and 4A suffices; not suitable for 6A or thermally demanding +125°C environments. |
| TPS54620RGYT | 6A rated, 4.5–17V input, 2.5–6.5V adjustable VOUT, 2.5–3.5MHz fSW, integrated boot capacitor. | Higher VIN range suits 12V intermediate buses; wider VOUT adjustability but less efficient below 3V input. | Prefer for wide-input industrial systems; avoid for Li-ion or USB-powered designs due to minimum 4.5V VIN. |
Compared with MP2315DJ-LF-P and TPS54620RGYT, the ISL8026FRTAJZ-T7A uniquely combines 6A capability, 2.5V minimum input, 1MHz default frequency, and full –40°C to +125°C operation in a 3×3 mm footprint - making it optimal for compact, battery-fed, high-reliability POL applications where input voltage headroom is minimal.
Availability
ISL8026FRTAJZ-T7A is available at Aetrix Electronics and suitable for industrial PCs, portable instrumentation, and FPGA-based test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ISL8026FRTAJZ-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 continues to support its high-performance analog and power management portfolio, including precision DC/DC regulators for industrial and automotive markets.
The ISL8026FRTAJZ-T7A belongs to Renesas' compact synchronous buck regulator product line, designed specifically for space-constrained, thermally demanding point-of-load applications in industrial automation, medical devices, and embedded computing.
FAQ
What is the maximum junction temperature specification for the ISL8026FRTAJZ-T7A?
The ISL8026FRTAJZ-T7A has a maximum junction temperature of +125°C, with thermal shutdown activating at +150°C and 25°C hysteresis. Its 16-lead TQFN package achieves θJA = 47°C/W and θJC = 6.5°C/W when the exposed pad is properly soldered to SGND, enabling reliable 6A operation in ambient temperatures up to +125°C when PCB layout follows recommended thermal guidelines.
Does the ISL8026FRTAJZ-T7A support external frequency synchronization?
Yes, the ISL8026FRTAJZ-T7A supports external synchronization via the SYNC pin, accepting positive-edge-triggered clock signals up to 4MHz. This allows precise timing alignment with system clocks or other converters to minimize beat frequencies and EMI in multi-rail power architectures - a capability confirmed in the FN8736 datasheet Section "Frequency Adjust" and Figure 3 block diagram.
How does the soft-stop function operate during shutdown of the ISL8026FRTAJZ-T7A?
When the EN pin is driven low, the ISL8026FRTAJZ-T7A activates an internal soft-stop switch that actively discharges the output capacitor through a controlled path, preventing the VOUT rail from floating or interfering with downstream circuitry. This behavior is explicitly documented in the "Discharge Mode (Soft-Stop)" section of the FN8736 datasheet and verified in Figures 21–26 showing VOUT collapse waveforms during shutdown at various load conditions.
What is the reference voltage tolerance of the ISL8026FRTAJZ-T7A over its full operating temperature range?
The ISL8026FRTAJZ-T7A features a 0.6V internal reference with ±1.5% accuracy over the full –40°C to +125°C junction temperature range, as specified in Table "Electrical Specifications" on page 6 of FN8736 Rev 2.00. This tighter tolerance than the ±1.0% spec for –40°C to +85°C ensures robust regulation in high-ambient industrial deployments.
Can the ISL8026FRTAJZ-T7A be used in forced continuous conduction mode (CCM)?
Yes, the ISL8026FRTAJZ-T7A can be configured for forced CCM by driving the SYNC pin high (to VIN or logic high), which disables pulse-frequency modulation (PFM) and maintains constant switching frequency regardless of load. This mode reduces electromagnetic interference and output voltage ripple - critical for noise-sensitive analog or high-speed digital circuits - as confirmed in the "SKIP Mode" and "SYNC" pin description sections of FN8736.
ISL8026FRTAJZ-T7A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 16-WFQFN 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):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 6A
- Frequency - Switching:
- 490kHz ~ 4.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TQFN (3x3)
ISL8026FRTAJZ-T7A FAQ
1.How can I place an order for ISL8026FRTAJZ-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL8026FRTAJZ-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 ISL8026FRTAJZ-T7A reliable?
The price and inventory of ISL8026FRTAJZ-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL8026FRTAJZ-T7A is usually 5 days.
3.What payment methods are accepted for ISL8026FRTAJZ-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL8026FRTAJZ-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL8026FRTAJZ-T7A?
ISL8026FRTAJZ-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL8026FRTAJZ-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 ISL8026FRTAJZ-T7A?
For technical support, including ISL8026FRTAJZ-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL8026FRTAJZ-T7A requirements.
6.How does Aetrix verify that ISL8026FRTAJZ-T7A is sourced from the original manufacturer or authorized distributors?
All ISL8026FRTAJZ-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 ISL8026FRTAJZ-T7A meets industry standards.
7.What is the process for return or replacement of ISL8026FRTAJZ-T7A?
All ISL8026FRTAJZ-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL8026FRTAJZ-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 ISL8026FRTAJZ-T7A part is unused and in its original packaging.
Return procedure for ISL8026FRTAJZ-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL8026FRTAJZ-T7A Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
