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Renesas ISL6410IUZ-TK
- Part No.:
- ISL6410IUZ-TK
- Manufacturer:
- Renesas
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ISL6410IUZ-TK.pdf
- Description:
- IC REG BUCK PROG 600MA 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,087
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Product details
Overview
ISL6410IUZ-TK from Intersil is a single synchronous buck regulator with integrated N- and P-channel MOSFETs, designed for 3.3V ±10% input supply to deliver pin-programmable 1.2V/1.5V/1.8V outputs 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 powers microcontrollers, FPGAs, and ASIC core rails in space-constrained embedded systems.
For engineers reviewing the ISL6410IUZ-TK datasheet, ISL6410IUZ-TK pinout, ISL6410IUZ-TK application, or ISL6410IUZ-TK equivalent, key selection criteria include its MSOP-10 package footprint, fixed-output voltage programmability via VSET, internal slope-compensated peak-current-mode control, and compatibility with ceramic output capacitors as small as 10µF.
Technical Context
The ISL6410IUZ-TK implements a peak-current-mode PWM controller with internal slope compensation and a 0.45V reference. Its integrated high-side P-MOSFET (230mΩ rDS(ON)) and low-side N-MOSFET (230mΩ rDS(ON)) enable synchronous rectification, eliminating the need for an external Schottky diode and improving efficiency to 92% at 200mA (VIN=3.3V, VOUT=1.8V).
It features a dedicated VSET pin for selecting output voltage (1.2V, 1.5V, or 1.8V), a SYNC input for external clock synchronization, and a push-pull RESET output with 25ms timeout (set by CT capacitor). The PG signal asserts high when output reaches 94.5% of nominal value and interfaces directly to 3.3V logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.0V to 3.6V - matches standard 3.3V ±10% system rail; enables direct use without pre-regulation |
| Output Voltage Options | 1.2V / 1.5V / 1.8V - selected via VSET pin (L/Open/H); no external resistors required |
| Continuous Output Current | 600mA - sufficient for low-power FPGA I/O banks or microcontroller cores |
| Switching Frequency | 750kHz typical - allows compact 8.2µH inductor and 10µF ceramic output capacitor |
| Efficiency | 92% at 200mA (VIN=3.3V, VOUT=1.8V) - reduces thermal load in sealed enclosures |
| Protection Features | UVLO (2.53–2.73V), overcurrent limit (700–1300mA peak), thermal shutdown (150°C), and overvoltage lockout (30% OV threshold) |
| Package | MSOP-10 (M10.118) - 3.0mm × 3.0mm footprint with exposed pad for thermal relief |
Pinout & Package
ISL6410IUZ-TK is housed in a 10-lead MSOP package (JEDEC MO-187BA compliant, M10.118 drawing), featuring a thermally enhanced exposed pad (EP) on the underside for improved PCB heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: PVCC | Power MOSFET supply | Bypassed with 1µF capacitor; supplies gate drive for internal P- and N-MOSFETs independently of VIN |
| 2: VIN | Main input supply | 3.3V ±10% input; feeds control circuitry and connects to UVLO detection |
| 3: GND | Analog ground reference | Small-signal ground for error amplifier, oscillator, and feedback circuitry; must be separated from PGND |
| 4: PG | Power-good open-drain output | Asserts high when VOUT ≥94.5% of nominal; requires external pull-up to VIN for 3.3V logic interface |
| 5: FB | Feedback input | Connected directly to VOUT for regulation; internal 0.45V reference sets output voltage |
| 6: PGND | Power ground return | High-current return path for MOSFETs and inductor; must connect to PCB power plane near L pin |
| 7: L | Switch node | Drain junction of internal MOSFETs; connects directly to inductor; carries high dv/dt switching waveform |
| 8: EN | Enable input | Active-high logic control; pulls up to VIN via 10kΩ resistor; <30% VIN = disable (<1.0V), >70% VIN = enable (>2.3V) |
| 9: SYNC | Frequency synchronization input | Accepts CMOS-level clock (500kHz–1MHz); device auto-detects rising edge and switches seamlessly between internal/external clock |
| 10: VSET | Output voltage select | Logic level determines output: L = 1.2V, Open = 1.5V, H = 1.8V; compatible with VIN or GND tie-off |
Key Features
| Feature | Design Value |
|---|---|
| Fully integrated synchronous buck | Eliminates external diode and reduces BOM count; achieves 92% efficiency at 200mA without heatsinking |
| Pin-programmable output voltage | Three fixed outputs (1.2V/1.5V/1.8V) selected solely by VSET logic state-no feedback resistors needed |
| Internal slope-compensated current-mode control | Stabilizes loop response across line/load variations; enables use of small ceramic output capacitors (≥10µF) |
| 25ms RESET timeout with adjustable CT | CT = 10nF sets 25ms assertion time; ensures reliable processor reset during brown-out recovery |
| Thermal shutdown with 20°C hysteresis | Shuts down at 150°C junction temperature and re-enables only after cooling to ≤130°C-prevents thermal cycling damage |
| 750kHz fixed-frequency operation | Enables use of 8.2µH inductors and 10µF ceramic caps-reduces solution size vs. lower-frequency alternatives |
Applications
| Microcontroller Core Supply | FPGA I/O Bank Regulation |
|---|---|
Use Scenario: Powering ARM Cortex-M series MCU cores requiring stable 1.2V or 1.8V at ≤600mA. IC Role / Device Role / Timing Role: Primary DC-DC converter delivering regulated core voltage with fast transient response. Use Value: Internal MOSFETs and 750kHz switching minimize output ripple and enable compact 10µF ceramic capacitor solution. |
Use Scenario: Supplying configurable I/O banks on Xilinx Spartan or Intel Cyclone FPGAs. IC Role / Device Role / Timing Role: Dedicated point-of-load regulator per I/O bank, programmed via VSET for 1.2V/1.5V/1.8V compliance. Use Value: Pin-selectable output eliminates resistor networks and simplifies layout for multi-voltage FPGA designs. |
| DVD/DSL Baseband Processor Rail | WLAN Card Baseband IC Supply |
Use Scenario: Generating 1.5V supply for MPEG decoder or DSL PHY processors in consumer broadband equipment. IC Role / Device Role / Timing Role: Secondary regulator stepping down 3.3V system rail to processor core voltage. Use Value: UVLO (2.53–2.73V) and thermal shutdown ensure robust operation during ambient temperature swings in plastic enclosures. |
Use Scenario: Providing clean 1.8V rail for IEEE 802.11a/b/g baseband ICs in mini-PCI WLAN cards. IC Role / Device Role / Timing Role: Low-noise, high-efficiency buck converter placed adjacent to RF section. Use Value: MSOP-10 package (3.0×3.0mm) and 92% efficiency reduce board area and thermal impact near sensitive RF traces. |
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 | 3MHz fixed-frequency, 600mA, 1.2V–3.3V adjustable via resistor divider; no VSET pin; smaller 2mm × 2mm WSON | Requires external feedback resistors; better suited for battery-powered portable devices needing ultra-low quiescent current (17µA) | Choose TPS62231DRYR if adjustable output and minimal IQ are critical; avoid if pin-programmable fixed outputs are required. |
| RT8059GJ6 | 1.5MHz, 600mA, 1.2V–3.3V adjustable; integrated soft-start; no RESET or SYNC; QFN-6 package | Lacks power-good and synchronization capability; simpler feature set for cost-sensitive non-critical rails | Choose RT8059GJ6 for basic 1.2V/1.5V/1.8V conversion where PG, SYNC, and RESET are unnecessary. |
Compared with TPS62231DRYR and RT8059GJ6, the ISL6410IUZ-TK uniquely delivers pin-selectable fixed outputs without resistors, integrated RESET with CT-adjustable timeout, and full 500kHz–1MHz synchronization-making it optimal for FPGA/microcontroller core rails demanding deterministic startup and timing coordination.
Availability
ISL6410IUZ-TK is available at Aetrix Electronics and suitable for FPGA power delivery, microcontroller core supply, and WLAN baseband IC regulation requiring stable component supply, Pb-free compliance, and long-term industrial temperature support (–40°C to +85°C).
Supply support for ISL6410IUZ-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 converters, precision amplifiers, and interface solutions.
The ISL6410IUZ-TK belongs to Intersil's single-channel synchronous buck regulator family, engineered specifically for low-noise, high-efficiency core and I/O rail generation in programmable logic and embedded processor systems.
FAQ
What input voltage range does the ISL6410IUZ-TK support?
The ISL6410IUZ-TK supports an input voltage range of 3.0V to 3.6V, optimized for 3.3V ±10% system rails. Its UVLO circuit disables operation below 2.53V (falling) and re-enables above 2.68V (rising), ensuring reliable startup and brown-out protection. This range is strictly defined for the ISL6410 variant; the ISL6410A variant supports 4.5V–5.5V and is not interchangeable with the ISL6410IUZ-TK.
How is the output voltage configured on the ISL6410IUZ-TK?
The ISL6410IUZ-TK uses the VSET pin to select one of three fixed output voltages: 1.2V (VSET tied low), 1.5V (VSET left open), or 1.8V (VSET tied high). No external feedback resistors are required. The internal 0.45V reference and fixed gain ensure ±1.5% output accuracy across –40°C to +85°C, making it ideal for applications where resistor tolerance and layout parasitics must be eliminated.
Does the ISL6410IUZ-TK require external compensation components?
No, the ISL6410IUZ-TK features internally compensated control loop architecture. It is designed to remain stable with standard 10µF ceramic output capacitors (ESR ≤50mΩ) and does not require external compensation network components like RC filters or type-II/III compensators. This simplifies design, reduces bill-of-materials, and improves layout robustness for high-frequency switching.
What is the purpose of the SYNC pin on the ISL6410IUZ-TK?
The SYNC pin on the ISL6410IUZ-TK allows synchronization of the internal 750kHz oscillator to an external CMOS clock signal ranging from 500kHz to 1MHz. This eliminates beat frequencies in multi-rail systems, reduces EMI peaks, and enables precise timing alignment with system clocks. If the external clock stops, the device automatically reverts to its internal oscillator within four cycles-ensuring uninterrupted operation.
Can the ISL6410IUZ-TK be used with ceramic output capacitors?
Yes, the ISL6410IUZ-TK is explicitly characterized and stabilized for use with low-ESR ceramic output capacitors as small as 10µF. Its internal compensation and current-mode control tolerate the near-zero ESR of ceramics, unlike many older buck controllers that require tantalum or electrolytic capacitors for stability. This enables smaller, more reliable, and longer-life power solutions.
ISL6410IUZ-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):
- 3V
- Voltage - Input (Max):
- 3.6V
- Voltage - Output (Min/Fixed):
- 1.2V, 1.5V, 1.8V
- 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
ISL6410IUZ-TK FAQ
1.How can I place an order for ISL6410IUZ-TK through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL6410IUZ-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 ISL6410IUZ-TK reliable?
The price and inventory of ISL6410IUZ-TK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL6410IUZ-TK is usually 5 days.
3.What payment methods are accepted for ISL6410IUZ-TK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL6410IUZ-TK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL6410IUZ-TK?
ISL6410IUZ-TK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL6410IUZ-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 ISL6410IUZ-TK?
For technical support, including ISL6410IUZ-TK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL6410IUZ-TK requirements.
6.How does Aetrix verify that ISL6410IUZ-TK is sourced from the original manufacturer or authorized distributors?
All ISL6410IUZ-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 ISL6410IUZ-TK meets industry standards.
7.What is the process for return or replacement of ISL6410IUZ-TK?
All ISL6410IUZ-TK units undergo pre-shipment inspection (PSI). If there is an issue with ISL6410IUZ-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 ISL6410IUZ-TK part is unused and in its original packaging.
Return procedure for ISL6410IUZ-TK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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