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Renesas ISL8016IR15Z-T
- Part No.:
- ISL8016IR15Z-T
- Manufacturer:
- Renesas
- Package:
- 20-VFQFN Exposed Pad
- Datasheet:
-
ISL8016IR15Z-T.pdf
- Description:
- IC REG BUCK 1.5V 6A 20QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,304
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Product details
Overview
ISL8016IR15Z-T from Renesas Electronics (formerly Intersil) is a fixed 1.5V, 6A synchronous buck regulator with integrated high- and low-side MOSFETs, operating from 2.7V–5.5V input and delivering ±1% output voltage accuracy over temperature, line, and load. It features adjustable frequency (500kHz–4MHz), pre-bias start-up, reverse current protection, and 100% duty-cycle capability for <200mV dropout at full load - deployed in FPGA core power and portable instrumentation.
For engineers reviewing the ISL8016IR15Z-T datasheet, ISL8016IR15Z-T pinout, ISL8016IR15Z-T application, or ISL8016IR15Z-T equivalent, key selection criteria include its fixed 1.5V output, 6A continuous current rating, QFN-20 3×4 mm package with exposed thermal pad, 1ms internal soft-start, and support for PWM/PFM mode selection via SYNCIN.
Technical Context
The ISL8016IR15Z-T implements peak current-mode control with slope compensation for fast transient response and loop stability. Its integrated P-Channel (45 mΩ typ @ 5V) and N-Channel (35 mΩ typ @ 5V) MOSFETs enable up to 97% efficiency at 5VIN/1.5VOUT, while the 100% duty-cycle operation supports ultra-low dropout under heavy load.
It supports synchronization up to 4MHz with master-slave phase interleaving for >6A applications, and offers configurable current limiting (2A/4A/6A via ISET), ±10% output margining (via VSET), and hiccup-mode short-circuit protection triggered after 17 consecutive overcurrent events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.500 V ±1% over -40°C to +85°C - ensures stable core supply for low-voltage FPGAs and microprocessors. |
| Max Output Current | 6 A continuous - supports high-current digital loads without external current sharing. |
| Input Voltage Range | 2.7 V to 5.5 V - compatible with single-cell Li-ion (3.0–4.2 V), USB 5 V, and industrial 3.3 V rails. |
| Switching Frequency | Adjustable 500 kHz to 4 MHz (default 1 MHz) - enables EMI optimization and small external component selection. |
| Quiescent Current | 70 µA in PFM no-load mode - extends battery life in portable instruments and always-on subsystems. |
| Thermal Resistance | θJA = 42 °C/W, θJC = 5 °C/W - requires minimal PCB copper area for thermal management due to exposed pad connection to SGND. |
| Protection Features | Over-temperature shutdown (150°C), hiccup-mode OCP, reverse current blocking, UVLO (2.7 V rising), and soft-stop output discharge - ensures robust field reliability. |
Pinout & Package
ISL8016IR15Z-T is housed in a RoHS-compliant, lead-free 20-lead 3 mm × 4 mm QFN package (PKG DWG # L20.3x4) with an exposed thermal pad requiring direct connection to SGND for optimal electrical and thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19, 20 | PGND | Power ground return for high-current switching paths - must be connected to low-impedance ground plane. |
| 2, 3, 4 | PHASE | Switching node connecting to inductor - carries high di/dt; requires short, low-inductance layout. |
| 5, 6, 7 | VIN | Main input supply - requires dual 22 µF ceramic capacitors placed close to pins for high-frequency decoupling. |
| 8 | PG | Open-drain power-good indicator - signals regulation status after 1 ms delay; requires external 10–100 kΩ pull-up to VIN. |
| 10 | SYNCIN | Mode selection/synchronization input - logic high = PWM, logic low = PFM, external clock = sync master/slave. |
| 11 | EN | Enable control with internal 1 MΩ pull-down - active-high; drives low to fully discharge output during shutdown. |
| 12 | FS | Frequency set resistor input - connects to GND via RFS to program 500 kHz–4 MHz; tied to VIN for default 1 MHz. |
| 14 | ISET | Peak current limit configuration - floating = 6 A, VIN = 4 A, SGND = 2 A - sets OCP threshold and SKIP current limit. |
| 15 | SS | Soft-start timing control - grounded = 1 ms internal ramp; capacitor to SGND adjusts ramp time (≤33 nF). |
| 16, 17 | COMP / VFB | Compensation node / feedback input - VFB senses output divider; COMP used only with external compensation (FS ≠ VIN). |
| 18 | SGND | Signal ground reference - must connect to system ground and exposed pad for noise immunity and thermal conduction. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated High/Low-Side MOSFETs | P-Channel ON-resistance ≤45 mΩ and N-Channel ≤35 mΩ at 5VIN - eliminates external power switches and reduces BOM count. |
| 100% Duty-Cycle Operation | Enables <200 mV dropout at 6 A - supports ultra-low-VOUT applications where input voltage approaches output. |
| Pre-Biased Output Start-Up | Allows safe startup into existing output voltage - prevents reverse current flow when powering systems with powered-backup rails. |
| Phase-Interleaved Paralleling | SYNCOUT/SYNCIN interface enables precise master-slave timing - reduces input/output ripple and enables 12 A+ solutions with two ICs. |
| Adjustable Soft-Start | 1 ms internal ramp or capacitor-programmable - controls inrush current and avoids input rail collapse during power-up. |
Applications
| DC/DC POL Modules | µC/µP, FPGA and DSP Power |
|---|---|
Use Scenario: Point-of-load conversion in compact embedded modules where board space and thermal density are constrained. IC Role / Device Role / Timing Role: Primary 1.5V core regulator delivering 6A to FPGA I/O banks or processor subsystems. Use Value: Integrated MOSFETs and 3×4 mm QFN reduce footprint to <0.15 in²; 97% peak efficiency minimizes heat generation. | Use Scenario: Core voltage supply for Xilinx Artix-7 or Intel Cyclone V FPGAs requiring tightly regulated 1.5V at up to 6A. IC Role / Device Role / Timing Role: Synchronous buck converter with pre-bias start and ±1% output accuracy across temperature. Use Value: 1ms soft-start prevents brownout during FPGA configuration; hiccup-mode OCP protects against shorted VCCIO traces. |
| Portable Instruments | Li-ion Battery Powered Devices |
Use Scenario: Powering handheld test equipment (e.g., oscilloscope front-end ASICs) from single-cell Li-ion batteries. IC Role / Device Role / Timing Role: Main DC/DC regulator converting 3.0–4.2V battery range to stable 1.5V analog/digital supply. Use Value: 70 µA quiescent current in PFM mode extends runtime; reverse current protection prevents battery drain during standby. | Use Scenario: Power management in battery-powered medical sensors or IoT edge nodes with strict energy budgets. IC Role / Device Role / Timing Role: High-efficiency step-down regulator supporting dynamic voltage scaling and deep-sleep modes. Use Value: Discontinuous/forced-continuous mode selection allows trade-off between light-load efficiency (PFM) and low-noise operation (PWM). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS54620RGYT | Fixed 1.5V output, 6A, 2.95–17V input, 500kHz–2.2MHz freq, no PFM mode, higher min input voltage | Requires ≥2.95V input - unsuitable for single-cell Li-ion below 3.0V; lacks pre-bias start and reverse current protection | Select when input rail is ≥3.0V and PWM-only operation is acceptable; verify thermal design for higher θJA (52°C/W) |
| MP2315DJ-LF-Z | Fixed 1.5V output, 6A, 4.5–28V input, 350kHz–2.5MHz freq, no PFM, no sync-out, lower integration | Minimum 4.5V input excludes battery-powered use; no phase-interleaving support limits multi-phase scalability | Choose for industrial 5V/12V rails where wide input range and cost sensitivity outweigh low-IQ and sync features |
Compared with TPS54620RGYT and MP2315DJ-LF-Z, the ISL8016IR15Z-T uniquely supports 2.7V input, PFM mode for ultra-low IQ, pre-bias start, and master-slave synchronization - making it optimal for portable, battery-critical, and high-density POL designs.
Availability
ISL8016IR15Z-T is available at Aetrix Electronics and suitable for FPGA core power, portable instrumentation, and Li-ion battery-powered devices requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for ISL8016IR15Z-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 full support for the ISL8016 family as part of its broad analog and power management portfolio.
The ISL8016 product line was designed specifically for high-current, low-voltage point-of-load applications in space-constrained, thermally sensitive environments such as portable computing and test equipment.
FAQ
What is the output voltage tolerance of the ISL8016IR15Z-T over temperature and load?
The ISL8016IR15Z-T delivers a fixed 1.5V output with ±1% accuracy over the full operating temperature range (-40°C to +85°C), line (2.7V–5.5V input), and load (0–6A). This specification is guaranteed by the internal 0.6V bandgap reference and precision feedback network, ensuring reliable core voltage regulation for sensitive digital loads without external trimming.
Does the ISL8016IR15Z-T support synchronization with other converters?
Yes, the ISL8016IR15Z-T supports external synchronization from 500kHz to 4MHz via the SYNCIN pin, and provides a 250µA current-source SYNCOUT signal for master-slave phase interleaving. When configured as master, SYNCOUT triggers slave devices; adding a capacitor (e.g., 100pF) between SYNCOUT and SYNCIN introduces controlled phase shift to reduce system-level ripple.
How does the ISL8016IR15Z-T handle startup into a pre-biased output?
The ISL8016IR15Z-T supports pre-biased start-up: when enabled, it monitors the VFB pin and delays switching until the output voltage falls below the regulation threshold, preventing reverse current flow through the low-side MOSFET. This feature safely powers systems with backup supplies or hot-plug scenarios without damaging downstream circuitry.
What thermal considerations apply to the ISL8016IR15Z-T's exposed pad?
The exposed pad on the ISL8016IR15Z-T must be soldered directly to the SGND net and connected to the main PCB ground plane using ≥6 thermal vias (0.3mm diameter) under the pad. This achieves θJC = 5°C/W and prevents junction temperatures from exceeding 125°C at 6A continuous load in still air - critical for sustained operation in enclosed enclosures.
Can the ISL8016IR15Z-T operate with input voltages below 3.0V?
Yes, the ISL8016IR15Z-T operates down to 2.7V input, making it compatible with discharged single-cell Li-ion batteries (2.7–4.2V range). Its undervoltage lockout (UVLO) releases at 2.7V (rising) and re-engages at 2.4V (falling), ensuring clean startup and shutdown without brownout oscillation during battery depletion.
ISL8016IR15Z-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 20-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 6A
- Frequency - Switching:
- 525kHz ~ 3.9MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-QFN (3x4)
ISL8016IR15Z-T FAQ
1.How can I place an order for ISL8016IR15Z-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL8016IR15Z-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 ISL8016IR15Z-T reliable?
The price and inventory of ISL8016IR15Z-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL8016IR15Z-T is usually 5 days.
3.What payment methods are accepted for ISL8016IR15Z-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL8016IR15Z-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL8016IR15Z-T?
ISL8016IR15Z-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL8016IR15Z-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 ISL8016IR15Z-T?
For technical support, including ISL8016IR15Z-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL8016IR15Z-T requirements.
6.How does Aetrix verify that ISL8016IR15Z-T is sourced from the original manufacturer or authorized distributors?
All ISL8016IR15Z-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 ISL8016IR15Z-T meets industry standards.
7.What is the process for return or replacement of ISL8016IR15Z-T?
All ISL8016IR15Z-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL8016IR15Z-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 ISL8016IR15Z-T part is unused and in its original packaging.
Return procedure for ISL8016IR15Z-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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