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Renesas ISL8013AIRZ-T7A
- Part No.:
- ISL8013AIRZ-T7A
- Manufacturer:
- Renesas
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
ISL8013AIRZ-T7A.pdf
- Description:
- IC REG BUCK ADJ 3A 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,432
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Product details
Overview
ISL8013AIRZ-T7A from Renesas Electronics is a monolithic synchronous buck regulator delivering up to 3A continuous output current from a 2.8V–5.5V input, featuring 1MHz PWM switching, 97% peak efficiency, 35µA quiescent current in PFM mode, and integrated P/N-channel MOSFETs with ≤75mΩ ON-resistance. It powers microcontrollers, FPGAs, and Li-ion battery systems requiring compact, high-efficiency DC/DC conversion.
For engineers reviewing the ISL8013AIRZ-T7A datasheet, ISL8013AIRZ-T7A pinout, ISL8013AIRZ-T7A application, or ISL8013AIRZ-T7A equivalent, key selection criteria include dropout voltage (<300mV at 3A), 1ms power-good timing, soft-stop output discharge, selectable PWM/PFM operation, and synchronization capability up to 4MHz.
Technical Context
The ISL8013AIRZ-T7A uses current-mode control with internal slope compensation for fast transient response and stable loop behavior across 0–3A load range. Its dual-MOSFET architecture enables 100% duty-cycle operation and supports both forced continuous conduction mode (CCM) and discontinuous conduction mode (DCM) via SYNCH pin configuration.
It integrates internal soft-start (1ms ramp), overtemperature shutdown (140°C), hiccup-mode overcurrent protection, and an open-drain PG output with 1ms delay. The device operates across –40°C to +85°C ambient and features internal compensation, eliminating external compensation components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.8V to 5.5V - supports single-cell Li-ion, USB, and intermediate bus rails without pre-regulation. |
| Output Current | 3A continuous - sufficient for powering core logic of modern µCs, FPGAs, and DSPs. |
| Switching Frequency | 1MHz (adjustable up to 4MHz via SYNC) - enables use of small 1.5µH inductors and low-ESR ceramic capacitors. |
| Quiescent Current | 35µA in PFM mode - extends battery life in always-on portable instrumentation. |
| Reference Voltage | 0.8V ±10mV - ensures 3% output accuracy over line, load, and temperature for stable system rail regulation. |
| Power-Good Delay | 1ms after regulation - provides reliable sequencing signal for downstream logic reset or enable timing. |
| Shutdown Current | <1µA - minimizes standby leakage in battery-critical applications. |
| Duty Cycle Range | 0–100% - supports ultra-low dropout operation (e.g., 3.3V→3.0V at 3A with <300mV drop). |
Pinout & Package
ISL8013AIRZ-T7A is housed in a thermally enhanced 4mm × 4mm, 16-lead QFN package with exposed thermal pad connected to SGND. The package supports high-power density designs with θJA = 39°C/W and θJC = 3°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 VIN | Input power supply | Accepts 2.8–5.5V; requires local 10µF ceramic bypass to PGND. |
| 3 VDD | Analog supply rail | Must be tied to VIN; powers internal bandgap and error amplifier. |
| 4 SYNCH | Mode/sync control | Logic-high = forced PWM; logic-low = PFM; external clock edge-triggered sync up to 4MHz. |
| 5 EN | Enable/disable control | Active-high; pulls LX low and discharges output capacitor during shutdown. |
| 7 PG | Power-good indicator | Open-drain output; asserts high after 1ms delay once VOUT reaches 92% of target. |
| 8 VFB | Feedback input | Connects to resistor divider for adjustable output; shorted to VOUT for fixed 0.8V mode. |
| 13–15 LX | Switch node | Drives external inductor; connects internally to P/N-MOSFET pair with ≤75mΩ RDS(on). |
| 11, 12 PGND | Power ground | High-current return path for MOSFETs and inductor; separate from SGND for noise isolation. |
| 9, 10 SGND | Signal ground | Reference for VFB, EN, PG, SYNCH; exposed pad must connect here for thermal and electrical integrity. |
| 6 NC | No-connect | Test-only pin; recommended tied to GND for EMI reduction. |
| 16 NC | No-connect | Not bonded; leave unconnected. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated P/N-MOSFETs | Reduces BOM count by eliminating external switches; ≤75mΩ RDS(on) at 2.8V ensures high efficiency at low VIN. |
| Selectably forced PWM or PFM | Enables noise-sensitive applications (e.g., audio, RF) to avoid frequency modulation while maintaining light-load efficiency. |
| Soft-stop output discharge | Prevents back-powering of upstream circuitry during disable; critical for hot-swap and multi-rail sequencing. |
| Internal soft-start (1ms) | Eliminates inrush current and overshoot during startup; compatible with pre-biased outputs. |
| Hiccup-mode overcurrent protection | Provides self-recovering fault handling under sustained overload or short-circuit without latch-off or manual reset. |
| 100% duty-cycle capability | Supports near-dropout operation (e.g., 3.3V→3.0V), extending usable input range in battery-depleted conditions. |
Applications
| Microcontroller Core Supply | FPGA I/O Bank Regulation |
|---|---|
|
Use Scenario: Powering ARM Cortex-M7 core at 1.2V/2A in industrial PLC controller with 3.3V intermediate rail. IC Role / Device Role / Timing Role: Primary step-down regulator providing tightly regulated, low-noise core voltage with precise power-good signaling for reset coordination. Use Value: 3% output accuracy and 1ms PG delay ensure deterministic boot sequence; 97% efficiency reduces thermal load on dense PCB. |
Use Scenario: Delivering 1.8V/3A to Xilinx Artix-7 FPGA I/O banks from 5V backplane supply in telecom SFP module. IC Role / Device Role / Timing Role: High-current POL converter with SYNC input enabling phase-shifted parallel operation to reduce input ripple. Use Value: 1MHz switching allows 1.5µH inductor and compact 2×22µF output caps; 4mm×4mm QFN fits tight SFP footprint. |
| Li-ion Powered Barcode Scanner | Portable Test Instrumentation |
|
Use Scenario: Regulating 3.3V/1.5A from single-cell Li-ion (2.8–4.2V) in handheld barcode reader with always-on sleep mode. IC Role / Device Role / Timing Role: Efficiency-optimized buck converter operating in PFM mode at µA-level loads to maximize battery runtime. Use Value: 35µA quiescent current and soft-stop discharge prevent battery drain during standby; 100% duty cycle sustains output down to 2.8V. |
Use Scenario: Generating 2.5V/2A for precision ADC and op-amp rails in battery-powered handheld multimeter. IC Role / Device Role / Timing Role: Low-noise, high-accuracy DC/DC source with internal compensation and minimal external components. Use Value: 3% output tolerance and <1.5% load regulation ensure measurement stability; QFN package aids thermal management in sealed enclosure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS54331DR | 3A, 2.95–6V input, 570kHz fixed freq, no SYNC, higher IQ (120µA) | Lacks 4MHz sync, PFM mode, and soft-stop discharge; requires external compensation. | Choose when cost sensitivity outweighs need for advanced features like sync or ultra-low IQ. |
| MP2338GJ-Z | 3A, 4.5–24V input, 500kHz, no PFM, no PG, 1.2V ref, larger 3mm×3mm QFN | Higher VIN range but incompatible with sub-4.5V battery inputs; no power-good or soft-start timing control. | Use only in higher-input industrial rails where 2.8–5.5V operation and sequencing signals are not required. |
Compared with TPS54331DR and MP2338GJ-Z, the ISL8013AIRZ-T7A uniquely combines 2.8V minimum input, 1ms programmable PG, soft-stop discharge, and 4MHz sync capability-making it optimal for space-constrained, battery-powered, and multi-rail sequenced systems.
Availability
ISL8013AIRZ-T7A is available at Aetrix Electronics and suitable for microcontroller core supplies, FPGA I/O regulation, and Li-ion powered portable instruments requiring stable component supply, RoHS-compliant packaging, and long-term production continuity.
Supply support for ISL8013AIRZ-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 is a global semiconductor leader specializing in microcontrollers, analog power management, and timing solutions for automotive, industrial, and IoT applications.
The ISL8013AIRZ-T7A belongs to Renesas' ISL80xx family of high-efficiency, low-quiescent-current buck regulators designed specifically for battery-powered handheld devices and space-constrained point-of-load applications.
FAQ
What is the minimum input voltage supported by the ISL8013AIRZ-T7A?
The ISL8013AIRZ-T7A supports a minimum input voltage of 2.8V, verified per its Absolute Maximum Ratings and Recommended Operating Conditions. This enables direct operation from single-cell Li-ion batteries across their full discharge curve, including end-of-life voltage levels down to 2.8V, while maintaining regulation and 100% duty-cycle capability.
Does the ISL8013AIRZ-T7A require external compensation components?
No, the ISL8013AIRZ-T7A features internal compensation using a fixed 27pF capacitor and 390kΩ resistor network, as confirmed in the Theory of Operation section and Electrical Specifications. This eliminates the need for external compensation components, reducing design complexity and board area while ensuring stable loop performance across all operating conditions.
How does the ISL8013AIRZ-T7A handle output capacitor discharge during shutdown?
The ISL8013AIRZ-T7A implements soft-stop output discharge: when the EN pin is pulled low, the internal N-MOSFET actively sinks current from the output capacitor to ground until VOUT drops below ~0.4V. This prevents back-powering of upstream circuitry and ensures safe, controlled shutdown-critical for hot-swap and multi-rail systems.
Can the ISL8013AIRZ-T7A synchronize to an external clock above 1MHz?
Yes, the ISL8013AIRZ-T7A accepts external synchronization signals up to 4MHz on the SYNCH pin, with negative-edge triggering. The datasheet specifies this capability in the Synchronization Control section and confirms minimum LX on-time (140ns) supports stable operation at 4MHz, enabling phase-shifted parallel configurations to reduce input ripple.
What is the thermal resistance of the ISL8013AIRZ-T7A package?
The ISL8013AIRZ-T7A in its 4mm×4mm QFN package has a typical junction-to-ambient thermal resistance (θJA) of 39°C/W and junction-to-case (θJC) of 3°C/W, as specified in the Thermal Information table. These values assume proper PCB layout with the exposed pad soldered to an SGND plane using multiple thermal vias.
ISL8013AIRZ-T7A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 16-VQFN 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):
- 2.8V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 3A
- Frequency - Switching:
- 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QFN (4x4)
ISL8013AIRZ-T7A FAQ
1.How can I place an order for ISL8013AIRZ-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL8013AIRZ-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 ISL8013AIRZ-T7A reliable?
The price and inventory of ISL8013AIRZ-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL8013AIRZ-T7A is usually 5 days.
3.What payment methods are accepted for ISL8013AIRZ-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL8013AIRZ-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL8013AIRZ-T7A?
ISL8013AIRZ-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL8013AIRZ-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 ISL8013AIRZ-T7A?
For technical support, including ISL8013AIRZ-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL8013AIRZ-T7A requirements.
6.How does Aetrix verify that ISL8013AIRZ-T7A is sourced from the original manufacturer or authorized distributors?
All ISL8013AIRZ-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 ISL8013AIRZ-T7A meets industry standards.
7.What is the process for return or replacement of ISL8013AIRZ-T7A?
All ISL8013AIRZ-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL8013AIRZ-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 ISL8013AIRZ-T7A part is unused and in its original packaging.
Return procedure for ISL8013AIRZ-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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