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Renesas ISL80015FRZ-T
- Part No.:
- ISL80015FRZ-T
- Manufacturer:
- Renesas
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
ISL80015FRZ-T.pdf
- Description:
- IC REG BUCK ADJ 1.5A 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,588
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Product details
Overview
ISL80015FRZ-T 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 1MHz switching frequency with 0.6V feedback reference and integrated PMOS/NMOS power stage. It supports 100% duty cycle operation and features internal soft-start, power-good signaling, and thermal shutdown - used in point-of-load regulation for industrial and telecom equipment.
For engineers reviewing the ISL80015FRZ-T datasheet, ISL80015FRZ-T pinout, ISL80015FRZ-T application, or ISL80015FRZ-T equivalent, key selection criteria include its -40°C to +125°C extended temperature rating, 8-pin 2mm×2mm TDFN package with exposed thermal pad, peak efficiency up to 95%, and integrated overcurrent, short-circuit, and negative current protection.
Technical Context
The ISL80015FRZ-T employs 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 reference voltage sets output via external resistor divider, and the 1MHz oscillator enables fast transient response while minimizing inductor size.
It integrates low-rDS(ON) PMOS (117mΩ) and NMOS (86mΩ) switches, eliminating the need for an external boot capacitor. Protection architecture includes cycle-by-cycle overcurrent detection (2.1–2.9A trip), VFB-based short-circuit detection (<0.3V), and thermal shutdown at +150°C with +25°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 2.7V to 5.5V - supports single-cell Li-ion, USB, and industrial 3.3V/5V rails without external LDO pre-regulation. |
| IOUT Max | 1.5A continuous - sufficient for FPGA I/O banks, microcontroller cores, and sensor signal chains. |
| fSW | 1MHz nominal - enables use of compact 2.2µH inductors and reduces EMI fundamental frequency. |
| VFB Reference | 0.600V ±6mV - allows precise output programming down to 0.6V with standard resistor tolerances. |
| Efficiency Peak | Up to 95% at 1.5V/1A - minimizes thermal load in space-constrained industrial modules. |
| Thermal Range | -40°C to +125°C junction - qualified for under-hood automotive ancillary systems and high-ambient industrial controllers. |
| Protection | OCP, SCP, UVP/OVP on PG, thermal shutdown, negative current limit - enables robust self-protected POL without external supervision circuitry. |
Pinout & Package
The ISL80015FRZ-T is housed in an 8-pin 2mm×2mm TDFN package with exposed thermal pad (EPAD), RoHS-compliant, moisture sensitivity level (MSL) 3, and rated for reflow per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Input power supply rail | Supplies both power stage and internal bias regulator; requires ≥10µF ceramic decoupling placed adjacent to pin. |
| EN (Pin 2) | Enable control input | Active-high logic (1.4V threshold); disables device and discharges output via 100Ω internal switch when pulled low. |
| SGND (Pin 3) | Signal ground reference | Must be connected directly to EPAD to establish stable analog reference for FB and internal circuits. |
| PG (Pin 4) | Power-good open-drain output | Pulled low during soft-start and fault conditions; features 5MΩ internal pull-up and 0.3V low-level threshold. |
| FB (Pin 5) | Feedback node for output regulation | Connects to resistor divider; monitors output voltage and triggers PG fault if deviates >15% from 0.6V reference. |
| 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; requires low-impedance connection to PCB ground plane. |
| PHASE (Pin 8) | Switching node | Connects to inductor; carries high di/dt current; internal 100Ω discharge path activates during shutdown. |
| EPAD (Pin 9) | Exposed thermal pad | Electrically tied to PGND; requires ≥4 vias to inner ground plane for thermal and electrical integrity. |
Key Features
| Feature | Design Value |
|---|---|
| PMOS high-side switch | Eliminates boot capacitor requirement, reducing BOM count and layout complexity. |
| 100% duty cycle capability | Enables dropout operation down to VIN – VOUT ≈ 0V at 1MHz, critical for low-VIN applications like battery backup rails. |
| Integrated soft-start | Fixed 1ms ramp time prevents inrush current and stabilizes output before system enable sequencing. |
| Negative current protection | Detects -1.5A valley inductor current over two cycles to prevent reverse conduction and output collapse during light-load transitions. |
| Internal compensation | 27pF/200kΩ RC network eliminates external compensation components, simplifying design and improving production consistency. |
Applications
| Industrial PLC I/O Module | Medical Sensor Front-End |
|---|---|
Use Scenario: Regulating 1.8V/1.5A for isolated ADC drivers and digital isolators in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Primary point-of-load regulator providing clean, stable rail with fast transient response to handle burst-mode communication loads. Use Value: 95% peak efficiency and -40°C to +125°C rating ensure reliable operation in unventilated enclosures with ambient temperatures up to 85°C. | Use Scenario: Powering low-noise analog front-end ICs (e.g., instrumentation amplifiers, sigma-delta ADCs) in portable patient monitors. IC Role / Device Role / Timing Role: Low-ripple, tightly regulated 3.3V POL supply with <±1% load regulation across 0–1.5A, synchronized to system clock via fixed-frequency 1MHz operation. Use Value: Integrated OCP and SCP protect sensitive analog circuitry from fault propagation during sensor cable disconnect or ESD events. |
| Telecom SFP+ Transceiver | Automotive Infotainment MCU Core |
Use Scenario: Generating 1.2V/1.5A for SFP+ module laser driver ASICs in enterprise switches with strict thermal constraints. IC Role / Device Role / Timing Role: Compact, thermally efficient buck converter occupying <64mm² area, leveraging 2mm×2mm TDFN footprint to fit within tight QSFP cage spacing. Use Value: Exposed EPAD and 7°C/W θJC enable direct thermal coupling to heatsink, sustaining full 1.5A output at +85°C ambient without derating. | Use Scenario: Supplying 1.1V core voltage to ARM Cortex-A53 SoC in head-unit infotainment systems operating in vehicle cabin environments. IC Role / Device Role / Timing Role: High-reliability POL regulator with extended temperature qualification (-40°C to +125°C) and AEC-Q200-aligned stress screening. Use Value: Thermal shutdown with +25°C hysteresis prevents latch-up during engine-off hot-soak conditions, ensuring cold-start readiness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62130ARGTR | 3A max output, 2.5V–6V input, 2.2MHz fSW, 0.6V VFB, same 8-pin VSON package but 3mm×3mm size | Higher current and input range; less suitable for space-constrained designs requiring sub-64mm² footprint | Select when >1.5A load or wider VIN needed; verify PCB layout compatibility due to larger package. |
| MP2143GJ-Z | 2A max output, 2.5V–5.5V input, 1.5MHz fSW, 0.6V VFB, 8-pin QFN 2mm×2mm but no EPAD | Lacks exposed thermal pad and extended temperature rating; not qualified for +125°C operation | Choose for cost-sensitive commercial applications below +85°C ambient; avoid in thermally demanding industrial deployments. |
Compared with TPS62130ARGTR and MP2143GJ-Z, the ISL80015FRZ-T uniquely combines 1.5A capability, 2mm×2mm TDFN with EPAD, and full -40°C to +125°C qualification - making it optimal for miniaturized, high-reliability industrial and automotive POL where thermal performance and temperature margin are critical.
Availability
ISL80015FRZ-T is available at Aetrix Electronics and suitable for industrial PLCs, medical sensor modules, telecom transceivers, and automotive infotainment systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ISL80015FRZ-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 acquired Intersil in 2017 and maintains its high-performance analog and power management portfolio for industrial, automotive, and communications markets.
The ISL80015FRZ-T belongs to Renesas' compact synchronous buck converter family designed specifically for space-constrained, thermally demanding point-of-load applications requiring extended temperature operation and minimal external components.
FAQ
What is the maximum output current and input voltage range supported by the ISL80015FRZ-T?
The ISL80015FRZ-T delivers up to 1.5A continuous output current from a 2.7V to 5.5V input supply. This range supports common battery-powered and industrial bus rails including single-cell Li-ion (2.7–4.2V), USB 5V, and 3.3V backplanes. The device maintains regulation across this full input span while sustaining 1.5A load at 1MHz switching frequency and -40°C to +125°C junction temperature.
Does the ISL80015FRZ-T require an external boot capacitor?
No, the ISL80015FRZ-T does not require an external boot capacitor because it uses a PMOS high-side switch instead of an NMOS. This architecture eliminates the need for charge-pump or bootstrap circuitry, reducing component count and PCB area. The internal bias regulator derives power directly from VIN, enabling simpler, more reliable designs - a key differentiator versus NMOS-based buck controllers requiring external boot components.
What protection features are integrated into the ISL80015FRZ-T?
The ISL80015FRZ-T integrates overcurrent protection (OCP), short-circuit protection (SCP), negative current protection, thermal shutdown (+150°C trip with +25°C hysteresis), input undervoltage lockout (UVLO), and output overvoltage/undervoltage monitoring via the PG pin. These protections operate autonomously without external circuitry, ensuring safe operation during fault conditions such as output shorts, inductor saturation, or ambient overheating - critical for unattended industrial and medical systems.
How is output voltage programmed on the ISL80015FRZ-T?
Output voltage on the ISL80015FRZ-T is programmed using an external resistor divider connected between VOUT, FB, and GND. With a precise 0.600V ±6mV internal reference, the formula R1 = R2 × (VOUT/0.6 − 1) determines the top resistor value. For example, a 1.8V output requires R1 = 200kΩ when R2 = 100kΩ. A 22pF capacitor across R1 improves loop stability, and minimum 10µA output preload is recommended for best regulation accuracy.
What is the thermal performance of the ISL80015FRZ-T in its 2mm×2mm TDFN package?
The ISL80015FRZ-T achieves θJC = 7°C/W and θJA = 71°C/W in its 8-pin 2mm×2mm TDFN package with exposed thermal pad. When mounted with ≥4 vias to a solid PGND plane, it sustains full 1.5A output at +85°C ambient without derating. At +125°C junction limit, maximum allowable power dissipation is ~1.0W - sufficient for typical 1.5A/1.8V operation (PLOSS ≈ 0.25W), confirming robust thermal headroom in enclosed industrial enclosures.
ISL80015FRZ-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-WFDFN 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:
- 1.5A
- Frequency - Switching:
- 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN-EP (2x2)
ISL80015FRZ-T FAQ
1.How can I place an order for ISL80015FRZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL80015FRZ-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 ISL80015FRZ-T reliable?
The price and inventory of ISL80015FRZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL80015FRZ-T is usually 5 days.
3.What payment methods are accepted for ISL80015FRZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL80015FRZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL80015FRZ-T?
ISL80015FRZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL80015FRZ-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 ISL80015FRZ-T?
For technical support, including ISL80015FRZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL80015FRZ-T requirements.
6.How does Aetrix verify that ISL80015FRZ-T is sourced from the original manufacturer or authorized distributors?
All ISL80015FRZ-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 ISL80015FRZ-T meets industry standards.
7.What is the process for return or replacement of ISL80015FRZ-T?
All ISL80015FRZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL80015FRZ-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 ISL80015FRZ-T part is unused and in its original packaging.
Return procedure for ISL80015FRZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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