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Renesas ISL8013AIRZ
- Part No.:
- ISL8013AIRZ
- Manufacturer:
- Renesas
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
ISL8013AIRZ.pdf
- Description:
- IC REG BUCK ADJ 3A 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:328
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Product details
Overview
ISL8013AIRZ 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, and integrated P/N-channel MOSFETs with ≤75mΩ ON-resistance. It powers µC/FPGA core rails in portable instruments and SFP modules.
For engineers reviewing the ISL8013AIRZ datasheet, ISL8013AIRZ pinout, ISL8013AIRZ application, or ISL8013AIRZ equivalent, key selection criteria include its 35µA quiescent current in PFM mode, 1ms power-good delay, 100% duty-cycle capability for <300mV dropout at 3A, and external synchronization support up to 4MHz.
Technical Context
The ISL8013AIRZ uses current-mode control with internal slope compensation and a transconductance error amplifier (20µA/V) for fast transient response and stable loop behavior across 0–3A load range. Its dual-mode operation-selectable forced PWM or PFM via SYNCH pin-enables optimized efficiency versus noise trade-offs.
Protection architecture includes hiccup-mode overcurrent limiting (4.8A typical switch limit), thermal shutdown at 140°C, output overvoltage detection (92%–95% VREF trip), and soft-stop output discharge during disable. The 1ms PG timer ensures reliable system sequencing after startup.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 3A continuous - supports FPGA core and µP I/O rail loads without external current boosting |
| Input Voltage Range | 2.8V to 5.5V - compatible with single-cell Li-ion (3.0–4.2V), USB 5V, and 3.3V intermediate bus systems |
| Switching Frequency | 1MHz nominal (0.8–1.2MHz) - enables use of compact 1.5µH inductors and low-ESR ceramic capacitors |
| Quiescent Current | 35µA in PFM mode - extends battery runtime in always-on portable instrumentation |
| Reference Voltage | 0.800V ±10mV - enables precise 1.2V/1.5V/1.8V/2.5V/3.3V outputs via resistor divider feedback |
| Power-Good Delay | 1ms after regulation - provides deterministic timing for downstream processor reset assertion |
| Duty Cycle Range | 0–100% - supports ultra-low dropout operation (e.g., 3.3V→3.0V at 3A with <300mV drop) |
Pinout & Package
ISL8013AIRZ is housed in a thermally enhanced 4mm × 4mm, 16-lead QFN package with exposed pad (L16.4x4 drawing), RoHS-compliant, and rated for –40°C to +85°C ambient operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 VIN | Input supply rail | Primary power input; requires local 10µF ceramic bypass to PGND |
| 3 VDD | Analog supply | Must be tied directly 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 output capacitor to ground during shutdown (soft-stop discharge) |
| 7 PG | Power-good indicator | Open-drain output asserting 1ms after VOUT reaches regulation; requires external pull-up |
| 8 VFB | Feedback node | Connects to resistor divider; regulates output to 0.8V reference; bias current <0.1µA |
| 13–15 LX | Switching node | High-current connection to inductor; integrates P/N-MOSFETs with ≤75mΩ RDS(on) |
| 11, 12 PGND | Power ground | High-current return path for LX switches; must be low-inductance plane under IC |
| 9, 10 SGND | Signal ground | Reference for VFB, EN, PG, SYNCH; connected to exposed pad for thermal/electrical integrity |
| 6 NC | No-connect | Test-only pin; recommended tied to GND for noise immunity |
| 16 NC | No-connect | Not internally bonded; leave unconnected |
| Exposed Pad | Thermal & signal ground | Mandatory connection to SGND plane via multiple vias for θJA = 39°C/W and stable operation |
Key Features
| Feature | Design Value |
|---|---|
| Integrated P/N-MOSFETs | Reduces BOM count by eliminating external high-side/low-side switches; RDS(on) ≤75mΩ minimizes conduction loss |
| Selectably forced PWM or PFM | Enables EMI-sensitive applications (forced PWM) or battery-life-critical designs (PFM) without changing layout |
| Soft-start and soft-stop | 1ms controlled ramp-up prevents inrush; active discharge during disable avoids floating output on hot-swap |
| Hiccup-mode overcurrent protection | Prevents thermal runaway during sustained overload or short circuit; auto-recovery avoids latch-off failure mode |
| External synchronization | Eliminates beat frequencies in multi-rail systems; supports up to 4MHz sync clock with falling-edge trigger |
Applications
| DC/DC POL Modules | µC/µP and FPGA Core Rails |
|---|---|
Use Scenario: Point-of-load conversion in compact embedded controllers requiring tight voltage tolerance and fast transient response. IC Role / Device Role / Timing Role: Primary synchronous buck regulator generating 1.2V/1.8V core supply with 3% total output accuracy over line/load/temp. Use Value: Integrated MOSFETs and internal compensation reduce footprint to <0.4in²; 1MHz switching allows small 1.5µH inductors. | Use Scenario: Powering ARM Cortex-A/M series processors and Xilinx Artix-7 FPGAs in handheld test equipment. IC Role / Device Role / Timing Role: High-efficiency step-down converter delivering 3A at 1.0–1.8V with start-up into prebiased output capability. Use Value: 35µA quiescent current in PFM mode extends battery life; 100% duty cycle supports low-dropout operation during brownout. |
| Small Form Factor (SFP) Modules | Li-ion Battery-Powered Devices |
Use Scenario: Space-constrained optical transceiver modules needing regulated 3.3V/2.5V rails with minimal thermal rise. IC Role / Device Role / Timing Role: Compact DC/DC solution in 4mm×4mm QFN package with θJA = 39°C/W for passive cooling. Use Value: Exposed pad tied to SGND delivers low thermal resistance; SYNC input enables phase-shifted parallel operation to reduce input ripple. | Use Scenario: Portable barcode readers and handheld medical sensors operating from single-cell Li-ion (3.0–4.2V). IC Role / Device Role / Timing Role: Main system regulator supporting dynamic load steps from sleep (10µA) to active scan (2.5A) modes. Use Value: Fast transient response (<10µs recovery) maintains regulation during burst-mode operation; soft-stop discharge prevents backfeed during battery swap. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS54332DR | 3A, 3.5–28V input, 570kHz fixed frequency, higher minimum input voltage, no PFM mode | Better suited for industrial 12V/24V intermediate bus; lacks light-load efficiency optimization | Choose when input exceeds 5.5V or higher Vin range required; not drop-in for 2.8–5.5V battery systems |
| MP2332HG-33-LF-Z | 3A, 4.5–33V input, 500kHz, integrated compensation, no SYNC or PG pin | Targeted at cost-sensitive industrial supplies; missing power-good signaling and sync capability | Use where board space is constrained but system-level sequencing and multi-rail sync are unnecessary |
Compared with TPS54332DR and MP2332HG-33-LF-Z, the ISL8013AIRZ uniquely combines ultra-low input voltage support (2.8V), PFM/PWM mode selectability, 1ms PG timing, and 4MHz sync capability - making it optimal for battery-powered, space-limited, and multi-rail-coordinated designs.
Availability
ISL8013AIRZ is available at Aetrix Electronics and suitable for DC/DC POL modules, µC/FPGA power delivery, and Li-ion battery-powered devices requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ISL8013AIRZ 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 delivering microcontrollers, analog power, and SoC solutions for automotive, industrial, and IoT markets.
The ISL8013AIRZ belongs to Renesas' high-efficiency DC/DC regulator product line, engineered specifically for portable and battery-operated applications demanding low quiescent current, small footprint, and robust protection features.
FAQ
What is the maximum output current capability of the ISL8013AIRZ?
The ISL8013AIRZ delivers up to 3A continuous output current across its full operating temperature range (–40°C to +85°C). This rating assumes proper PCB layout with adequate copper area for the exposed pad and thermal vias, and use of recommended external components (e.g., 1.5µH inductor, 44µF total output capacitance). Peak switch current is limited to 4.8A internally to protect against overload conditions.
Does the ISL8013AIRZ support output voltage adjustment?
Yes, the ISL8013AIRZ supports adjustable output voltages using an external resistor divider connected to the VFB pin. The internal reference is precisely trimmed to 0.800V ±10mV, enabling accurate regulation of common rails such as 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V. For fixed 0.8V output, connect VFB directly to the output node.
How does the ISL8013AIRZ handle startup into a prebiased output?
The ISL8013AIRZ supports start-up into a prebiased output condition without damaging external components or causing output overshoot. Its internal control logic monitors VFB during soft-start and adjusts gate drive to prevent reverse current flow through the synchronous rectifier, ensuring safe and controlled ramp-up even when the output capacitor is already charged.
What protection features are built into the ISL8013AIRZ?
The ISL8013AIRZ integrates multiple protection mechanisms: hiccup-mode overcurrent limiting (triggered at ~4.8A switch current), thermal shutdown at 140°C with 25°C hysteresis, output overvoltage detection (trip at 92–95% of VREF), undervoltage lockout (2.6V rising threshold), and soft-stop output discharge during enable-disable transitions. These ensure robust operation in real-world fault scenarios.
Can the ISL8013AIRZ synchronize to an external clock?
Yes, the ISL8013AIRZ accepts an external synchronization signal on the SYNCH pin, triggered by the falling edge of the input clock. It supports sync frequencies up to 4MHz while maintaining stable operation. This feature enables phase-shifted parallel operation to reduce input/output ripple and eliminate beat frequencies in multi-regulator systems.
ISL8013AIRZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 16-VQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- 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 FAQ
1.How can I place an order for ISL8013AIRZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL8013AIRZ 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 reliable?
The price and inventory of ISL8013AIRZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL8013AIRZ is usually 5 days.
3.What payment methods are accepted for ISL8013AIRZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL8013AIRZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL8013AIRZ?
ISL8013AIRZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL8013AIRZ 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?
For technical support, including ISL8013AIRZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL8013AIRZ requirements.
6.How does Aetrix verify that ISL8013AIRZ is sourced from the original manufacturer or authorized distributors?
All ISL8013AIRZ 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 meets industry standards.
7.What is the process for return or replacement of ISL8013AIRZ?
All ISL8013AIRZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL8013AIRZ, 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 part is unused and in its original packaging.
Return procedure for ISL8013AIRZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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