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Renesas ISL6410AIRZ-TK
- Part No.:
- ISL6410AIRZ-TK
- Manufacturer:
- Renesas
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
ISL6410AIRZ-TK.pdf
- Description:
- IC REG BUCK PROG 600MA 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,273
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Product details
Overview
ISL6410AIRZ-TK from Intersil is a synchronous current-mode PWM buck regulator with integrated N- and P-channel MOSFETs, designed for 5.0V ±10% input supply. It delivers pin-programmable fixed outputs of 3.3V, 1.8V, or 1.2V at up to 600mA continuous current, operating at 750kHz typical switching frequency. It serves as a compact DC-DC solution for FPGA core voltage regulation in WLAN cards and DSL equipment.
For engineers reviewing the ISL6410AIRZ-TK datasheet, ISL6410AIRZ-TK pinout, ISL6410AIRZ-TK application, or ISL6410AIRZ-TK equivalent, key selection considerations include its 5V-input compatibility, MSOP-10 package footprint, integrated power FETs, 750kHz synchronization capability, and built-in PG, UVLO, overcurrent, and thermal shutdown protection.
Technical Context
The ISL6410AIRZ-TK implements peak current-mode control with internal slope compensation and a fixed 0.45V feedback reference. Its PWM architecture uses an internal 750kHz oscillator (620–860kHz range) and supports external clock synchronization from 500kHz to 1MHz via the SYNC pin, with automatic fallback to internal timing if sync is lost.
It integrates both high-side PMOS and low-side NMOS power switches (rDS(ON) = 230mΩ each at 200mA), enabling synchronous rectification. The device features a dedicated RESET supervisory block with 25ms timeout (set by CT capacitor), independent of the main PWM operation, and provides push-pull RESET output alongside open-drain PG.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 5.5V - matches standard 5V rail with ±10% tolerance; enables direct use with USB-powered or legacy 5V systems. |
| Output Voltage Options | 1.2V / 1.8V / 3.3V - selected via VSET pin state (L/OPEN/H); eliminates need for external resistor divider in fixed-output designs. |
| Continuous Output Current | 600mA - sufficient for low-power FPGA I/O banks, CPLD cores, or ASIC logic domains without external boost stages. |
| Switching Frequency | 750kHz typical (620–860kHz) - allows use of small 12µH inductors and ceramic capacitors, reducing board area and cost. |
| Efficiency | 93% at 200mA (5V→3.3V) - minimizes thermal load in space-constrained modules like WLAN cards and embedded DSL interfaces. |
| Protection Features | UVLO (4.1–4.45V), overcurrent limit (700–1300mA peak), thermal shutdown (150°C), and overvoltage lockout (30% above nominal) - ensures robust operation under fault conditions without external circuitry. |
| Package | 10-lead MSOP - 3.0mm × 3.0mm footprint with exposed pad option; compatible with standard reflow profiles and IPC/JEDEC MO-187BA standards. |
Pinout & Package
ISL6410AIRZ-TK is housed in a Pb-free 10-lead MSOP package (JEDEC MO-187BA, pkg drawing M10.118), featuring a thermally enhanced exposed pad for improved heat dissipation. Pin numbering follows standard MSOP top-view orientation with pin 1 marked by index area.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Main input supply (5V) | Power source for control circuitry; requires local 1µF decoupling; UVLO threshold set at 4.1–4.45V. |
| GND | Analog ground reference | Reference node for error amplifier, oscillator, and feedback; must be separated from PGND to avoid noise coupling. |
| PG | Open-drain power-good indicator | Asserts high when VOUT reaches ≥94.5% of nominal; requires external pull-up to VIN for logic-level interfacing. |
| FB | Feedback input | Connects directly to VOUT for closed-loop regulation; internally referenced to 0.45V precision bandgap. |
| PGND | Power ground return | Low-impedance return path for inductor current and MOSFET sources; must connect to PCB power plane near L pin. |
| L | Switch node | Drain junction of internal MOSFETs; connects to external inductor; carries high di/dt switching current. |
| EN | Enable control input | Active-high logic interface (70% VIN threshold); pulls down to GND to enter <10µA shutdown mode. |
| SYNC | External clock synchronization | Accepts CMOS-level signal (500–1000kHz); auto-detects rising edge; resumes internal clock after 4-cycle timeout. |
| VSET | Output voltage select | Logic-level input: H=3.3V, OPEN=1.8V, L=1.2V for ISL6410A; sets output without external resistors. |
| PVCC | Power MOSFET supply | Provides gate drive voltage for internal FETs; requires separate 1µF decoupling; not tied to VIN internally. |
Key Features
| Feature | Design Value |
|---|---|
| Fully integrated synchronous buck | Eliminates need for external high-side/low-side MOSFETs and driver ICs - reduces BOM count and layout complexity. |
| Pin-programmable output voltages | Three factory-set outputs (1.2V/1.8V/3.3V) selected solely by VSET logic state - no resistor network required. |
| Internal compensation | Removes requirement for external Type II/III compensation network - simplifies design and improves stability across loads. |
| Dedicated RESET supervisory block | Independent reset generator with 25ms timeout (CT-timed), push-pull output, and hysteresis - ensures reliable microprocessor reset sequencing. |
| 750kHz fixed-frequency PWM | Enables use of compact 12µH inductors and low-ESR ceramic capacitors - supports ultra-thin, high-density PCB layouts. |
| Thermal and fault protection | Integrated thermal shutdown (150°C), cycle-by-cycle overcurrent limiting, and overvoltage lockout - prevents damage during transient faults. |
Applications
| WLAN Baseband Processor Power | FPGA Core Voltage Regulation |
|---|---|
Use Scenario: Providing stable 1.2V or 1.8V core supply to IEEE 802.11a/b/g baseband processors in compact access points and client adapters. IC Role / Device Role / Timing Role: Primary DC-DC converter delivering regulated core voltage with fast transient response and low ripple. Use Value: Enables single-chip power solution with <1.5% output accuracy and 92–93% efficiency, reducing thermal footprint and eliminating external FETs. |
Use Scenario: Generating 3.3V I/O supply or 1.2V core voltage for Xilinx Spartan or Altera Cyclone FPGAs in DSL modems and edge routers. IC Role / Device Role / Timing Role: Synchronous buck regulator with integrated power stage and programmable output for configurable logic domain supplies. Use Value: Supports pin-selectable outputs and 750kHz switching to minimize inductor size while maintaining <±1.5% load regulation across 0–600mA. |
| DVD Player Digital Signal Processing | ASIC Logic Domain Supply |
Use Scenario: Powering MPEG-2/4 decode engines and video DACs in consumer DVD players where board space and EMI are critical constraints. IC Role / Device Role / Timing Role: Compact, high-efficiency buck converter supplying 1.8V or 3.3V to DSP subsystems with tight ripple requirements. Use Value: Achieves <20mVpp output ripple using 10µF ceramic output capacitor and integrated synchronous rectification - meets video signal integrity specs. |
Use Scenario: Delivering clean, well-regulated 1.2V supply to mixed-signal ASICs in industrial controllers and medical imaging front-ends. IC Role / Device Role / Timing Role: Primary point-of-load regulator with UVLO, overcurrent, and thermal protection for mission-critical logic blocks. Use Value: Built-in 150°C thermal shutdown and 1300mA peak current limit prevent latch-up during short-circuit events without external sensing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62231DRYR | 3-MHz fixed-frequency, 600mA output, 2.05–6.5V input; requires external feedback resistors; no integrated RESET block. | Better suited for ultra-low-noise, high-PWM-frequency applications; lacks dedicated reset supervisor and VSET programming. | Select when higher switching frequency and smaller inductors are prioritized over integrated reset and pin-programmable voltage. |
| RT8059NGSP | 2.5-MHz constant-on-time controller, 600mA, 2.5–5.5V input; external MOSFETs required; no VSET pin or RESET output. | Designed for fast transient response in portable devices; lacks integrated FETs and system-level monitoring features. | Choose when design flexibility with discrete power stages is needed and board space allows external FETs and RC networks. |
Compared with TPS62231DRYR and RT8059NGSP, the ISL6410AIRZ-TK offers unique integration of pin-selectable outputs, a dedicated push-pull RESET block, and synchronous FETs in a 10-pin MSOP - reducing component count and simplifying compliance with FPGA/ASIC power sequencing requirements.
Availability
ISL6410AIRZ-TK is available at Aetrix Electronics and suitable for WLAN card power management, DSL modem baseband supplies, and FPGA core voltage regulation requiring stable component supply across extended temperature ranges (-40°C to +85°C).
Supply support for ISL6410AIRZ-TK 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
Intersil Corporation (now part of Renesas Electronics) is a U.S.-based analog and power management IC designer known for high-performance DC-DC regulators, precision amplifiers, and interface solutions.
The ISL6410AIRZ-TK belongs to Intersil's single-channel synchronous buck regulator family targeting space-constrained, low-power digital systems including FPGAs, CPLDs, and communication ASICs requiring integrated power FETs and simplified voltage selection.
FAQ
What input voltage range does the ISL6410AIRZ-TK support?
The ISL6410AIRZ-TK supports an input voltage range of 4.5V to 5.5V, optimized for 5.0V ±10% supplies. Its UVLO circuit activates below 4.1V (falling) and releases above 4.22V (rising), ensuring reliable startup and brownout protection. This range makes it ideal for legacy 5V systems and USB-powered devices where precise 5V rail regulation is required.
How is the output voltage selected on the ISL6410AIRZ-TK?
The ISL6410AIRZ-TK uses the VSET pin to select one of three fixed output voltages: 1.2V (VSET = LOW), 1.8V (VSET = OPEN), or 3.3V (VSET = HIGH). No external resistors are needed - the selection is purely logic-level driven. This pin-programmable feature simplifies design for multi-voltage platforms and eliminates calibration overhead in production.
Does the ISL6410AIRZ-TK include built-in protection features?
Yes, the ISL6410AIRZ-TK includes comprehensive protection: undervoltage lockout (UVLO), cycle-by-cycle overcurrent limiting (700–1300mA peak), overvoltage lockout (30% above nominal), thermal shutdown at 150°C, and soft-start to limit inrush current. These features operate autonomously without external components, enhancing system reliability in unattended or harsh environments.
Can the ISL6410AIRZ-TK be synchronized to an external clock?
Yes, the ISL6410AIRZ-TK accepts an external CMOS clock signal on the SYNC pin across 500kHz to 1MHz. It automatically locks to the rising edge of the first valid pulse and resumes internal 750kHz operation within four cycles if the external clock stops. This capability enables EMI reduction through frequency dithering or system-level clock domain alignment.
What is the purpose of the RESET pin on the ISL6410AIRZ-TK?
The RESET pin on the ISL6410AIRZ-TK is a push-pull output from an independent supervisory block that monitors VIN. It asserts low when VIN drops below 4.47–4.61V (ISL6410A) and remains active for ≥25ms after VIN recovers, ensuring proper microprocessor reset sequencing. Unlike PG, RESET operates independently of the PWM output and supports direct connection to MCU reset inputs.
ISL6410AIRZ-TK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 16-VQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Programmable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.2V, 1.8V, 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 600mA
- Frequency - Switching:
- 750kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QFN (4x4)
ISL6410AIRZ-TK FAQ
1.How can I place an order for ISL6410AIRZ-TK through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL6410AIRZ-TK 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 ISL6410AIRZ-TK reliable?
The price and inventory of ISL6410AIRZ-TK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL6410AIRZ-TK is usually 5 days.
3.What payment methods are accepted for ISL6410AIRZ-TK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL6410AIRZ-TK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL6410AIRZ-TK?
ISL6410AIRZ-TK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL6410AIRZ-TK 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 ISL6410AIRZ-TK?
For technical support, including ISL6410AIRZ-TK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL6410AIRZ-TK requirements.
6.How does Aetrix verify that ISL6410AIRZ-TK is sourced from the original manufacturer or authorized distributors?
All ISL6410AIRZ-TK 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 ISL6410AIRZ-TK meets industry standards.
7.What is the process for return or replacement of ISL6410AIRZ-TK?
All ISL6410AIRZ-TK units undergo pre-shipment inspection (PSI). If there is an issue with ISL6410AIRZ-TK, 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 ISL6410AIRZ-TK part is unused and in its original packaging.
Return procedure for ISL6410AIRZ-TK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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