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Renesas ISL80015AIRZ-T7A
- Part No.:
- ISL80015AIRZ-T7A
- Manufacturer:
- Renesas
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
ISL80015AIRZ-T7A.pdf
- Description:
- IC REG BUCK ADJ 1.5A 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,950
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Product details
Overview
ISL80015AIRZ-T7A from Renesas (formerly Intersil) is a monolithic synchronous buck DC/DC converter delivering up to 1.5A continuous output current from a 2.7V–5.5V input, operating at 2MHz switching frequency with 0.6V feedback reference and integrated PMOS/NMOS power stage in an 8-pin 2mm×2mm TDFN package. It serves as a compact, high-efficiency point-of-load regulator in space-constrained industrial and telecom systems.
For engineers reviewing the ISL80015AIRZ-T7A datasheet, ISL80015AIRZ-T7A pinout, ISL80015AIRZ-T7A application, or ISL80015AIRZ-T7A equivalent, key selection criteria include its 2MHz operation enabling small external inductors, 100% duty-cycle capability at 1MHz (not applicable here), absence of boot capacitor requirement due to integrated PMOS high-side switch, and thermal shutdown at +150°C with 25°C hysteresis.
Technical Context
The ISL80015AIRZ-T7A uses peak current-mode PWM control with slope compensation (900mV/Ts) and a transconductance error amplifier (40µA/V) internally compensated by a 27pF/200kΩ network. Its 0.6V ±1% feedback reference enables precise output regulation across -40°C to +125°C ambient.
It integrates low-rDS(ON) MOSFETs (117mΩ PMOS, 86mΩ NMOS at VIN=5V), supports negative current protection via valley-current monitoring, and features short-circuit protection that reduces oscillator frequency to 1/3 during VFB < 0.3V events - all implemented without external components beyond the R1/R2 feedback divider and output LC filter.
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 pre-regulation. |
| IOUT Max | 1.5A continuous - sufficient for FPGA I/O banks, microcontroller cores, and sensor signal chains. |
| fSW | 2MHz nominal - enables use of ≤2.2µH inductors and reduces output ripple without increasing EMI filtering burden. |
| VFB | 0.600V ±1% - sets output voltage via resistor divider (e.g., 200kΩ/100kΩ for 1.8V); stable over full temperature range. |
| Thermal Shutdown | +150°C activation with +125°C recovery - provides robust overtemperature protection with 25°C hysteresis to prevent oscillation. |
| Efficiency Peak | Up to 95% - achieved at mid-load with 3.3VIN/1.8VOUT, minimizing thermal load in sealed enclosures. |
| Quiescent Current | 10–22mA at no load (2MHz) - balances light-load efficiency against startup speed and regulation stability. |
Pinout & Package
ISL80015AIRZ-T7A is housed in an RoHS-compliant 8-pin 2mm×2mm TDFN package with exposed thermal pad (EPAD) requiring direct connection to PGND plane via ≥4 vias for optimal thermal performance (θJA = 71°C/W, θJC = 7°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Input power supply rail | Supplies both power stage and internal LDO bias; requires ≥10µF ceramic decoupling placed adjacent to pin. |
| EN (Pin 2) | Enable control input | Active-high logic: device enabled when >1.4V; pulled low disables regulator and discharges output via 100Ω internal switch. |
| SGND (Pin 3) | Signal ground reference | Must be connected to EPAD to establish clean analog reference for feedback and protection circuits. |
| PG (Pin 4) | Power-good open-drain output | Pulled low during soft-start and fault conditions; high-impedance when VOUT is within ±15% of regulation; includes 5MΩ internal pull-up. |
| FB (Pin 5) | Feedback node | Connects to resistor divider midpoint; monitors output voltage for regulation and triggers UVP/OVP on PG pin when deviating >15%. |
| NC (Pin 6) | No-connect terminal | Internally unconnected; must be tied to EPAD for mechanical stability and thermal conduction. |
| PGND (Pin 7) | Power and analog ground return | Primary ground path for high-current switching loop; must connect directly to PCB ground plane with low-inductance routing. |
| PHASE (Pin 8) | Switching node | Connects to inductor; carries high di/dt current; routed with minimal trace length/area to reduce EMI and voltage spikes. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated PMOS high-side switch | Eliminates need for external boot capacitor, reducing BOM count and layout complexity. |
| 2MHz fixed-frequency operation | Enables use of sub-2.2µH inductors and 22µF ceramic output capacitors, shrinking total solution area to <64mm². |
| Internal soft-start (1ms) | Prevents inrush current during power-up; ensures monotonic VOUT ramp without overshoot into sensitive loads. |
| Negative current protection | Shuts down both FETs if inductor valley current reaches –1.5A for two consecutive cycles, preventing reverse conduction damage. |
| Short-circuit protection | Reduces switching frequency to 1/3 normal rate when VFB < 0.3V, limiting power dissipation during sustained overload. |
Applications
| Industrial Sensor Node | Medical Portable Monitor |
|---|---|
Use Scenario: Powering low-noise analog front-end (AFE) and ultra-low-power MCU in battery-operated environmental sensors. IC Role / Device Role / Timing Role: Point-of-load regulator converting 3.7V Li-ion to stable 1.8V/3.3V rails with minimal ripple and fast transient response to sensor burst sampling. Use Value: 95% peak efficiency extends battery life; 2MHz operation avoids audible noise and simplifies EMI filtering in compact enclosures. |
Use Scenario: Supplying display driver IC and data acquisition subsystem in handheld patient vital sign monitors. IC Role / Device Role / Timing Role: Primary DC/DC converter delivering regulated 2.5V/3.3V from 5V USB input with power-good signaling for system sequencing. Use Value: Integrated thermal shutdown and short-circuit protection ensure safe operation during clinical use; small 2mm×2mm footprint conserves PCB real estate. |
| Telecom SFP+ Module | Gaming Peripheral Controller |
Use Scenario: Providing clean 1.2V core voltage to SFP+ transceiver ASIC in optical line cards. IC Role / Device Role / Timing Role: High-frequency buck regulator with tight output regulation (±1% VFB) and low output impedance to suppress jitter-sensitive power rail noise. Use Value: 2MHz switching minimizes inductor size while maintaining phase margin; PG output enables hot-plug detection and fault reporting to host controller. |
Use Scenario: Generating 1.8V logic supply for RGB LED controller and touch interface IC in wireless gaming mice. IC Role / Device Role / Timing Role: Compact POL regulator enabling rapid enable/disable cycling during USB suspend/resume transitions. Use Value: 100Ω internal discharge path ensures fast VOUT collapse during shutdown, meeting USB power delivery timing requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL80015IRZ-T7A | 1MHz switching frequency, identical 1.5A rating and package; higher inductor value required (2.2µH vs 1.2µH). | Better light-load efficiency at lower frequencies; less suitable for ultra-compact designs needing smallest possible magnetics. | Select ISL80015IRZ-T7A when EMI constraints favor lower fSW or when board space allows larger inductors. |
| TPS62130ARGTR | 1.5A, 3MHz, 2.7–6V input, 0.6V VFB, but uses NMOS/NMOS topology requiring external bootstrap capacitor. | Higher fSW enables smaller inductors but increases gate-drive complexity and component count. | Choose TPS62130ARGTR only if 3MHz operation is mandatory and additional external components are acceptable. |
Compared with ISL80015IRZ-T7A, the ISL80015AIRZ-T7A delivers faster transient response and smaller passive components at the cost of slightly higher quiescent current; versus TPS62130ARGTR, it offers simpler layout and lower BOM count despite lower maximum fSW.
Availability
ISL80015AIRZ-T7A is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical monitors, telecom SFP+ modules, and gaming peripheral controllers requiring stable component supply with guaranteed long-term availability.
Supply support for ISL80015AIRZ-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 ISL800xx family of high-efficiency DC/DC converters.
The ISL80015AIRZ-T7A belongs to Renesas' compact synchronous buck converter product line, designed specifically for space-constrained, battery-powered, and thermally sensitive applications demanding high efficiency and minimal external components.
FAQ
What is the maximum output current capability of the ISL80015AIRZ-T7A?
The ISL80015AIRZ-T7A delivers up to 1.5A of continuous output current across its full operating temperature range (-40°C to +125°C ambient), verified under worst-case conditions including 5.5V input and 1.5V output. This rating assumes proper thermal management using the exposed pad and adequate PCB copper area per the datasheet layout guidelines.
Does the ISL80015AIRZ-T7A require an external boot capacitor?
No, the ISL80015AIRZ-T7A does not require an external boot capacitor because it integrates a PMOS high-side switch. This architecture eliminates the need for charge-pump circuitry or external capacitors typically required by NMOS-based synchronous buck regulators like the TPS62130ARGTR.
What is the function of the NC pin on the ISL80015AIRZ-T7A?
Pin 6 (NC) on the ISL80015AIRZ-T7A is a no-connect terminal with no internal connection. Per the datasheet, it must be electrically tied to the exposed thermal pad (EPAD) to ensure mechanical stability, improve thermal conduction, and maintain consistent solder joint reliability during reflow.
How does the ISL80015AIRZ-T7A handle short-circuit conditions?
During a short-circuit event, the ISL80015AIRZ-T7A monitors the FB pin voltage and activates short-circuit protection when VFB drops below 0.3V. This causes the oscillator frequency to drop to one-third of its nominal value (≈667kHz), limiting power dissipation while maintaining regulation attempt - distinct from hard latch-off behavior seen in some competitors.
Can the ISL80015AIRZ-T7A operate with 100% duty cycle?
The ISL80015AIRZ-T7A is rated for 100% duty cycle operation only at 1MHz (ISL80015/ISL80020 variants). As a 2MHz part, the ISL80015AIRZ-T7A does not support 100% duty cycle; its minimum off-time limits maximum achievable duty cycle to approximately 90% depending on input/output voltage conditions.
ISL80015AIRZ-T7A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-WFDFN 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:
- 1.5A
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN-EP (2x2)
ISL80015AIRZ-T7A FAQ
1.How can I place an order for ISL80015AIRZ-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL80015AIRZ-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 ISL80015AIRZ-T7A reliable?
The price and inventory of ISL80015AIRZ-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL80015AIRZ-T7A is usually 5 days.
3.What payment methods are accepted for ISL80015AIRZ-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL80015AIRZ-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL80015AIRZ-T7A?
ISL80015AIRZ-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL80015AIRZ-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 ISL80015AIRZ-T7A?
For technical support, including ISL80015AIRZ-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL80015AIRZ-T7A requirements.
6.How does Aetrix verify that ISL80015AIRZ-T7A is sourced from the original manufacturer or authorized distributors?
All ISL80015AIRZ-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 ISL80015AIRZ-T7A meets industry standards.
7.What is the process for return or replacement of ISL80015AIRZ-T7A?
All ISL80015AIRZ-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL80015AIRZ-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 ISL80015AIRZ-T7A part is unused and in its original packaging.
Return procedure for ISL80015AIRZ-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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