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Renesas ISL6410AIUZ-TK
- Part No.:
- ISL6410AIUZ-TK
- Manufacturer:
- Renesas
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ISL6410AIUZ-TK.pdf
- Description:
- IC REG BUCK PROG 600MA 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,419
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Product details
Overview
ISL6410AIUZ-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 to deliver pin-programmable outputs of 3.3V, 1.8V, or 1.2V at up to 600mA continuous current. It operates at 750kHz typical switching frequency, supports external clock synchronization (500kHz–1MHz), and includes power-good (PG), overcurrent, UVLO, and thermal shutdown protection. It serves as a compact DC-DC solution for FPGA core rails and WLAN baseband processors.
For engineers reviewing the ISL6410AIUZ-TK datasheet, ISL6410AIUZ-TK pinout, ISL6410AIUZ-TK application, or ISL6410AIUZ-TK equivalent, key selection criteria include its MSOP-10 Pb-free package, fixed-output voltage programmability via VSET, integrated FET architecture eliminating external high-side/low-side switches, and compatibility with ceramic output capacitors down to 10µF.
Technical Context
The ISL6410AIUZ-TK implements peak current-mode control with internal slope compensation and a fixed 0.45V feedback reference. Its PWM logic drives integrated P-channel (230mΩ rDS(ON)) and N-channel (230mΩ rDS(ON)) MOSFETs in synchronous rectification mode, enabling >93% efficiency at 200mA with 5V→3.3V conversion.
It features a dedicated RESET supervisory block with 4.58V rising threshold (±20mV hysteresis) and 25ms timeout set by CT capacitor, plus a PG open-drain output referenced to VIN that asserts high when VOUT reaches 94.5% of nominal value. The EN pin enables shutdown with <10µA quiescent current at 25°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 5.5V - matches standard 5V rail with ±10% tolerance; triggers UVLO below 4.22V falling threshold. |
| Output Voltage Options | 3.3V (VSET = H), 1.8V (VSET = OPEN), or 1.2V (VSET = L) - selected by hardwiring VSET to VIN, floating, or GND respectively. |
| Continuous Output Current | 600mA - sufficient for low-power FPGA I/O banks or WLAN MAC processors without external current boosting. |
| Switching Frequency | 620–860kHz - enables use of small 12µH inductors and 10µF ceramic output capacitors while maintaining EMI manageability. |
| Efficiency | 93% at 200mA (5V→3.3V) - reduces thermal load in space-constrained embedded modules and eliminates need for heatsinking. |
| Protection Features | UVLO, overcurrent (700–1300mA peak limit), overvoltage (30% threshold), thermal shutdown (150°C), and PG monitoring - ensures robust operation in unregulated 5V systems. |
| Package | 10-lead MSOP (M10.118), 3.0mm × 3.0mm footprint - compatible with standard reflow profiles and supports high-density PCB layouts. |
Pinout & Package
ISL6410AIUZ-TK is housed in a Pb-free 10-lead MSOP package (JEDEC MO-187BA compliant, M10.118 drawing), measuring 3.0mm × 3.0mm × 1.1mm with exposed thermal pad not present in MSOP variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - PVCC | Power MOSFET supply input | Provides gate drive voltage for internal P- and N-channel FETs; requires local 1µF decoupling to minimize switching noise. |
| 2 - VIN | Main input supply (5V) | Supplies controller logic and bias circuits; must be decoupled with ≥10µF low-ESR capacitor near pin. |
| 3 - GND | Analog ground reference | Reference node for error amplifier, oscillator, and feedback circuitry; must be separated from PGND and tied at single point. |
| 4 - PG | Open-drain power-good indicator | Asserts high when VOUT is within ±8% of target; requires external pull-up to VIN for 5V logic interfacing. |
| 5 - FB | Feedback input | Connected directly to VOUT to close regulation loop using internal 0.45V reference; no external resistor divider needed. |
| 6 - PGND | Power ground return | Return path for inductor current and internal FET sources; must connect to power plane under inductor and output capacitor. |
| 7 - L | Switch node | Drain connection of internal FETs; ties to external inductor; carries high di/dt switching current - layout critical for EMI control. |
| 8 - EN | Enable control input | Logic-high (>70% VIN) enables regulation; logic-low (<30% VIN) forces shutdown with <10µA supply current. |
| 9 - SYNC | External clock synchronization input | Accepts CMOS-level signal (500–1000kHz); device auto-synchronizes on first rising edge and reverts to internal oscillator if sync stops. |
| 10 - VSET | Output voltage select input | Configures output: tied to VIN → 3.3V; floating → 1.8V; tied to GND → 1.2V - no external components required. |
Key Features
| Feature | Design Value |
|---|---|
| Fully integrated synchronous buck topology | Eliminates need for external high-side/low-side MOSFETs and associated gate drivers, reducing BOM count and layout complexity. |
| Pin-programmable fixed output voltages | Three factory-set outputs (3.3V/1.8V/1.2V) selected solely by VSET connection - no resistors, no configuration registers. |
| Internal slope-compensated current-mode control | Ensures stable operation across input/output variations without external compensation network; supports ceramic output caps ≥10µF. |
| Dedicated RESET supervisory block | Generates clean reset pulse with 25ms timeout (set by CT capacitor) and precise 4.58V rising threshold for 5V system monitoring. |
| 750kHz typical switching frequency | Enables use of compact 12µH shielded inductors and low-profile 10µF X5R/X7R ceramics - ideal for thin-profile consumer and networking modules. |
| Thermal and fault protection suite | Combines UVLO, cycle-by-cycle overcurrent limiting, thermal shutdown (150°C), and overvoltage lockout - prevents damage during transient faults. |
Applications
| FPGA Core Power Supply | WLAN Baseband Processor Rail |
|---|---|
|
Use Scenario: Powers 1.2V or 1.8V core logic of Spartan-3 or Cyclone II FPGAs in portable access points. IC Role / Device Role / Timing Role: Primary synchronous buck converter delivering regulated core voltage with fast transient response to logic switching currents. Use Value: Integrated FETs and 750kHz operation enable <3mm² solution size; PG signal sequences FPGA configuration with host processor. |
Use Scenario: Supplies 3.3V I/O and analog sections of Broadcom BCM43xx WLAN SoCs in mini-PCIe cards. IC Role / Device Role / Timing Role: Fixed-output DC-DC regulator with RESET supervision ensuring clean boot after 5V rail stabilization. Use Value: VSET-configurable 3.3V output eliminates external feedback resistors; MSOP-10 footprint fits tight card-edge layouts. |
| DVD Player ASIC Bias Rail | DSL Modem MAC Processor Supply |
|
Use Scenario: Generates 1.2V supply for MPEG-2 decoder ASICs in consumer DVD players with thermally constrained enclosures. IC Role / Device Role / Timing Role: High-efficiency (91–93%) buck regulator minimizing heat generation in sealed plastic chassis. Use Value: Thermal shutdown (150°C) and overcurrent protection prevent latch-up during sustained video decode loads. |
Use Scenario: Provides 1.8V core voltage for TI TMS320C64x+ DSPs in ADSL2+ residential gateways. IC Role / Device Role / Timing Role: Pin-selectable 1.8V output synchronized to system clock via SYNC pin to reduce beat-frequency EMI. Use Value: Synchronization range (500–1000kHz) allows alignment with Ethernet PHY clock, easing EMC certification. |
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, 5V-input, 1.8V/3.3V selectable via I²C; smaller 6-pin WSON package. | Requires digital interface and external I²C pull-ups; lacks RESET block and PG open-drain output. | Choose for space-constrained designs needing dynamic voltage scaling; avoid where hardware-only reset sequencing is required. |
| RT8059GJ6 | 2-MHz, 600mA, 5V-input, 3.3V fixed output only; no VSET flexibility or RESET function; 6-pin SOT-23 package. | Single-output only; no programmability; lower integration (no internal FETs - external high-side MOSFET required). | Choose for cost-sensitive 3.3V-only applications with minimal feature requirements; avoid when multi-voltage support or supervision is needed. |
Compared with TPS62231DRYR and RT8059GJ6, the ISL6410AIUZ-TK uniquely combines pin-selectable outputs, integrated RESET supervision, open-drain PG signaling, and full FET integration in an MSOP-10 package - making it optimal for hardware-defined, safety-critical 5V-to-multi-rail conversions without microcontroller involvement.
Availability
ISL6410AIUZ-TK is available at Aetrix Electronics and suitable for FPGA power management, WLAN baseband supplies, DSL modem processor rails, and DVD player ASIC biasing requiring stable component supply and long-term industrial availability.
Supply support for ISL6410AIUZ-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-reliability DC-DC solutions targeting industrial, communications, and computing markets.
The ISL6410A product line delivers fully integrated synchronous buck regulators optimized for compact, low-noise, hardware-configurable power delivery to FPGAs, WLAN SoCs, and DSL processors - emphasizing simplicity, thermal robustness, and minimal external component count.
FAQ
What input voltage range does the ISL6410AIUZ-TK support?
The ISL6410AIUZ-TK supports a 4.5V to 5.5V input range, aligned with standard 5V ±10% supply rails. Its undervoltage lockout (UVLO) activates below 4.22V (falling threshold) and releases above 4.37V (rising threshold), ensuring reliable startup and brownout protection. This range is strictly defined for the ISL6410A variant - the ISL6410 (3.3V-input version) is not interchangeable.
How is the output voltage configured on the ISL6410AIUZ-TK?
The ISL6410AIUZ-TK output voltage is set exclusively by the VSET pin: connecting VSET to VIN selects 3.3V, leaving VSET floating selects 1.8V, and tying VSET to GND selects 1.2V. No external resistors or digital interface are required. This hardware-based configuration ensures deterministic behavior in systems without firmware control.
Does the ISL6410AIUZ-TK include power-good and reset functionality?
Yes, the ISL6410AIUZ-TK integrates both functions: PG is an open-drain output asserting high when VOUT reaches 94.5% of nominal value, and RESET is a push-pull output with 4.58V rising threshold and 25ms timeout (set by CT capacitor). These signals provide hardware-level sequencing and supervision for microprocessors and FPGAs without external supervisors.
What is the maximum continuous output current rating for the ISL6410AIUZ-TK?
The ISL6410AIUZ-TK delivers up to 600mA continuous output current at rated efficiency and thermal conditions. Its peak current limit is 700–1300mA, providing headroom for short transients. Performance is validated per datasheet Figure 6 (efficiency vs. load) and Table "Maximum Output Current" - exceeding 600mA risks thermal shutdown in ambient >60°C without board-level cooling.
Can the ISL6410AIUZ-TK be synchronized to an external clock?
Yes, the ISL6410AIUZ-TK accepts a CMOS-level clock signal on the SYNC pin across 500kHz to 1000kHz. It automatically synchronizes to the first rising edge and reverts to its internal 750kHz oscillator if the external clock stops for four consecutive cycles. Duty cycle must be 20–60%, and input thresholds are defined as percentages of VIN.
ISL6410AIUZ-TK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- 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:
- 10-MSOP
ISL6410AIUZ-TK FAQ
1.How can I place an order for ISL6410AIUZ-TK through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL6410AIUZ-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 ISL6410AIUZ-TK reliable?
The price and inventory of ISL6410AIUZ-TK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL6410AIUZ-TK is usually 5 days.
3.What payment methods are accepted for ISL6410AIUZ-TK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL6410AIUZ-TK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL6410AIUZ-TK?
ISL6410AIUZ-TK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL6410AIUZ-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 ISL6410AIUZ-TK?
For technical support, including ISL6410AIUZ-TK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL6410AIUZ-TK requirements.
6.How does Aetrix verify that ISL6410AIUZ-TK is sourced from the original manufacturer or authorized distributors?
All ISL6410AIUZ-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 ISL6410AIUZ-TK meets industry standards.
7.What is the process for return or replacement of ISL6410AIUZ-TK?
All ISL6410AIUZ-TK units undergo pre-shipment inspection (PSI). If there is an issue with ISL6410AIUZ-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 ISL6410AIUZ-TK part is unused and in its original packaging.
Return procedure for ISL6410AIUZ-TK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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