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Renesas ISL8016IR25Z
- Part No.:
- ISL8016IR25Z
- Manufacturer:
- Renesas
- Package:
- 20-VFQFN Exposed Pad
- Datasheet:
-
ISL8016IR25Z.pdf
- Description:
- IC REG BUCK 2.5V 6A 20QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,607
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Product details
Overview
ISL8016IR25Z from Renesas (formerly Intersil) is a monolithic synchronous buck regulator delivering up to 6A continuous output current with fixed 2.5V output, 2.7V–5.5V input range, and ±1% output voltage accuracy over temperature/load/line. It integrates high- and low-side MOSFETs, supports adjustable frequency (500kHz–4MHz), and enables pre-biased start-up-used in FPGA core power and portable instrumentation.
For engineers reviewing the ISL8016IR25Z datasheet, ISL8016IR25Z pinout, ISL8016IR25Z application, or ISL8016IR25Z equivalent, key selection criteria include its 2.5V fixed output, 6A capability with internal current sensing, thermal shutdown at 150°C, and phase-interleaving support for >6A multi-chip configurations.
Technical Context
The ISL8016IR25Z employs peak current-mode control with slope compensation for fast transient response and loop stability. Its integrated P- and N-channel MOSFETs feature 45mΩ/35mΩ typical RDS(on) at 5VIN, enabling >97% efficiency at 5VIN/2.5VOUT/3A. The device uses a transconductance error amplifier (100µA/V internal compensation) and supports both PWM and PFM modes via SYNCIN logic level.
It implements hiccup-mode short-circuit protection triggered after 17 consecutive overcurrent events, reverse-current protection with -3A valley detection over 4 cycles, and soft-discharge during shutdown. The 1ms internal soft-start ramp is configurable via external capacitor on SS pin, and PG provides open-drain power-good signaling with 1ms delay and ±15% window monitoring.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.500V ±1% (VSET = FLOAT); supports ±10% margining via VSET pin |
| Max Output Current | 6A continuous; peak current limit configurable to 7.7–11.5A via ISET pin |
| Input Voltage Range | 2.7V to 5.5V DC; UVLO threshold 2.7V (rising), 2.4V (falling) |
| Switching Frequency | Default 1MHz; adjustable 500kHz–4MHz via FS resistor; sync-capable up to 4MHz |
| Efficiency | Up to 97% at 5VIN/2.5VOUT/3A (PWM mode); >90% at light load in PFM mode |
| Quiescent Current | 70µA in PFM no-load; 15mA in PWM no-load at 1MHz |
| Thermal Protection | Thermal shutdown at 150°C with 25°C hysteresis; θJA = 42°C/W (3x4 QFN) |
Pinout & Package
The ISL8016IR25Z is housed in a 20-lead 3mm × 4mm Pb-free QFN package with exposed thermal pad (PKG DWG # L20.3x4), requiring connection of EPAD to SGND for optimal thermal performance and electrical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19, 20 | PGND | Power ground return for high-current switching paths; must be low-inductance plane connection |
| 2, 3, 4 | PHASE | Switching node connecting to inductor; carries full AC ripple current and high dv/dt |
| 5, 6, 7 | VIN | Main input supply; requires two 22µF ceramic capacitors directly to PGND |
| 8 | PG | Open-drain power-good output; requires 10kΩ–100kΩ pull-up to VIN; 1ms delay after regulation |
| 9 | SYNCOUT | 250µA current-source sync pulse output; active only in PWM mode; used for master-slave phase interleaving |
| 10 | SYNCIN | Mode select/sync input; HI = PWM, LO = PFM, external clock = sync trigger (500kHz–4MHz) |
| 11 | EN | Active-high enable with 1MΩ internal pull-down; forces soft-discharge of output when low |
| 12 | FS | Frequency set pin; connect resistor to SGND for 500kHz–4MHz; tie to VIN for default 1MHz/internal compensation |
| 13 | VSET | Output voltage margining control; SGND = –10%, float = nominal, VIN = +10% |
| 14 | ISET | Peak current limit configuration; SGND = 2A, VIN = 4A, float = 6A (default for ISL8016IR25Z) |
| 15 | SS | Soft-start timing control; SGND = 1ms internal ramp; capacitor to SGND extends ramp time |
| 16, 17 | COMP / VFB | VFB is feedback input (0.6V reference); COMP is error amp output; tie COMP to SGND if FS = VIN |
| 18 | SGND | Signal ground reference for feedback, compensation, and logic pins; separate from PGND |
Key Features
| Feature | Design Value |
|---|---|
| Integrated High/Low-Side MOSFETs | Reduces external component count; eliminates gate driver design; enables compact 0.15in² layout |
| 100% Duty-Cycle Operation | Supports <200mV dropout at 6A; critical for low-VIN–VOUT applications like Li-ion battery systems |
| Pre-Biased Output Start-Up | Allows safe startup into existing output voltage without reverse current flow or overshoot |
| Phase Interleaving Support | Enables >6A output with reduced input/output ripple and EMI via SYNCOUT/SYNCIN synchronization |
| Adjustable Light-Load Mode | Selectable PWM (low-noise) or PFM (high-efficiency) operation via SYNCIN pin; no external circuitry required |
Applications
| FPGA Core Power Supply | Portable Test Instrumentation |
|---|---|
Use Scenario: Providing stable 2.5V rail to Xilinx Artix-7 FPGA banks with dynamic current demand up to 5A. IC Role / Device Role / Timing Role: Primary point-of-load (POL) regulator delivering regulated 2.5V with fast transient response and soft-start sequencing. Use Value: Integrated current limiting and pre-bias start prevent brownout during FPGA configuration; 97% efficiency extends battery runtime. | Use Scenario: Powering mixed-signal data acquisition circuits in handheld oscilloscopes with strict noise and size constraints. IC Role / Device Role / Timing Role: Compact, high-efficiency DC/DC converter supplying 2.5V analog front-end and digital logic sections. Use Value: PFM mode reduces quiescent current to 70µA during standby; 3x4 QFN footprint minimizes PCB area. |
| Industrial PLC I/O Module | Li-ion Powered Medical Sensor |
Use Scenario: Generating isolated 2.5V bias for precision ADC references in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Robust POL regulator with overtemperature and short-circuit protection for harsh industrial environments. Use Value: Thermal shutdown at 150°C and hiccup-mode fault recovery ensure system reliability without external supervision. | Use Scenario: Regulating 2.5V for ultra-low-power biosensor ASICs powered by single-cell 3.0–4.2V Li-ion batteries. IC Role / Device Role / Timing Role: High-efficiency buck converter operating across full battery discharge curve (4.2V → 3.0V). Use Value: 100% duty-cycle capability maintains regulation down to 2.7V input; 2.5V output matches sensor ASIC requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS54620RGYR | 6A, 2.5V fixed output; 3.5–17V input; 500kHz–2.5MHz sync; no pre-bias start | Higher input range suits 12V intermediate bus; lacks pre-biased start and PFM mode | Choose for wide-input industrial systems where 2.7–5.5V range is insufficient |
| MP2315DJ-LF-Z | 6A, adjustable output; 4.5–28V input; 500kHz–2.2MHz; no VSET/ISET margining or sync-out | Designed for higher-voltage rails; no built-in margining or master-slave sync capability | Choose when cost-sensitive designs require basic 6A buck without advanced features |
Compared with TPS54620RGYR and MP2315DJ-LF-Z, the ISL8016IR25Z offers unique integration of fixed 2.5V output, pre-biased start, ±10% margining, and SYNCOUT-driven phase interleaving-making it optimal for space-constrained, battery-powered, or multi-rail synchronized POL applications.
Availability
ISL8016IR25Z is available at Aetrix Electronics and suitable for FPGA power delivery, portable instrumentation, and Li-ion battery-powered medical sensors requiring stable component supply and long-term production continuity.
Supply support for ISL8016IR25Z 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 continues to support its high-performance analog and power management portfolio.
The ISL8016IR25Z belongs to Renesas' ISL8016 family of monolithic synchronous buck regulators, designed specifically for high-efficiency, low-noise point-of-load conversion in battery-powered and space-constrained embedded systems.
FAQ
What is the output voltage tolerance of the ISL8016IR25Z over temperature and load?
The ISL8016IR25Z delivers 2.500V ±1% output voltage accuracy across –40°C to +85°C ambient temperature, full 0–6A load range, and 2.7–5.5V input voltage. This specification is guaranteed by the 0.600V internal reference with 1% tolerance and precision feedback divider network optimized for the 2.5V fixed-output variant.
Does the ISL8016IR25Z support start-up into a pre-biased output voltage?
Yes, the ISL8016IR25Z supports pre-biased start-up, allowing safe activation when the output capacitor is already charged to 2.5V. This prevents reverse current flow through the internal low-side MOSFET and avoids output voltage overshoot-a critical feature for hot-swap and multi-rail sequencing applications using the ISL8016IR25Z.
How is the switching frequency configured on the ISL8016IR25Z?
The ISL8016IR25Z defaults to 1MHz when the FS pin is tied to VIN. To adjust frequency between 500kHz and 4MHz, connect a resistor from FS to SGND per RT = (220 × 10³)/fOSC(kHz) – 14. For example, a 42.4kΩ resistor sets fOSC ≈ 3.9MHz. External synchronization is also supported via the SYNCIN pin up to 4MHz.
What protection features does the ISL8016IR25Z include?
The ISL8016IR25Z includes overtemperature shutdown (150°C), hiccup-mode overcurrent protection (after 17 consecutive faults), reverse-current protection (–3A valley detection), undervoltage lockout (2.7V rising), and soft-discharge during disable. These protections operate autonomously without external components, ensuring robust operation of the ISL8016IR25Z in unattended systems.
Can multiple ISL8016IR25Z ICs be synchronized for higher current output?
Yes, the ISL8016IR25Z supports phase interleaving via SYNCOUT and SYNCIN pins. One device operates as master (SYNCOUT active), while others act as slaves (SYNCIN driven). Adding a capacitor (e.g., 100pF) between SYNCOUT and SYNCIN introduces controlled phase shift, reducing input/output ripple and EMI-enabling >6A solutions using multiple ISL8016IR25Z units.
ISL8016IR25Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 20-VFQFN Exposed Pad
- Packaging:
- Tube
- 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):
- 2.5V
- 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)
ISL8016IR25Z FAQ
1.How can I place an order for ISL8016IR25Z through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL8016IR25Z 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 ISL8016IR25Z reliable?
The price and inventory of ISL8016IR25Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL8016IR25Z is usually 5 days.
3.What payment methods are accepted for ISL8016IR25Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL8016IR25Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL8016IR25Z?
ISL8016IR25Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL8016IR25Z 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 ISL8016IR25Z?
For technical support, including ISL8016IR25Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL8016IR25Z requirements.
6.How does Aetrix verify that ISL8016IR25Z is sourced from the original manufacturer or authorized distributors?
All ISL8016IR25Z 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 ISL8016IR25Z meets industry standards.
7.What is the process for return or replacement of ISL8016IR25Z?
All ISL8016IR25Z units undergo pre-shipment inspection (PSI). If there is an issue with ISL8016IR25Z, 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 ISL8016IR25Z part is unused and in its original packaging.
Return procedure for ISL8016IR25Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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