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Renesas ISL6410IUZ
- Part No.:
- ISL6410IUZ
- Manufacturer:
- Renesas
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ISL6410IUZ.pdf
- Description:
- IC REG BUCK PROG 600MA 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,004
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Product details
Overview
ISL6410IUZ from Intersil is a single synchronous buck regulator IC with integrated N- and P-channel power MOSFETs, designed for 3.3V ±10% input voltage and delivering pin-programmable output voltages of 1.2V, 1.5V, or 1.8V at up to 600mA continuous current. It operates at 750kHz typical switching frequency, features internal slope-compensated peak current-mode control, and includes power-good (PG), enable (EN), and synchronization (SYNC) functions for embedded microcontroller and FPGA core supply applications.
For engineers reviewing the ISL6410IUZ datasheet, ISL6410IUZ pinout, ISL6410IUZ application, or ISL6410IUZ equivalent, this device serves as a fully integrated DC-DC solution requiring minimal external components-ideal for space-constrained designs needing stable, efficient low-voltage regulation with UVLO, overcurrent protection, thermal shutdown, and soft-start functionality.
Technical Context
The ISL6410IUZ implements peak current-mode PWM control with internal slope compensation and a fixed 0.45V feedback reference. Its integrated high-side PMOS and low-side NMOS power switches (230mΩ rDS(ON) each at 200mA) 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 supports external clock synchronization from 500kHz to 1MHz via the SYNC pin, provides programmable output voltage selection via the VSET pin (HIGH/OPEN/LOW), and integrates a dedicated reset supervisory block with 25ms timeout (CT-pin configurable) and hysteresis-distinct from the PG signal, which monitors output regulation within ±8%.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.0V to 3.6V - matches standard 3.3V ±10% rail; enables direct use without pre-regulation. |
| Output Voltage Options | 1.2V (VSET = LOW), 1.5V (VSET = OPEN), 1.8V (VSET = HIGH) - selectable via single resistor or direct connection, no external divider needed. |
| Continuous Output Current | 600mA - sufficient for low-power microcontrollers, CPLDs, and FPGA I/O banks. |
| Switching Frequency | 750kHz typical - allows compact 8.2µH inductor and ceramic output capacitors ≥10µF. |
| Efficiency | 92% at 200mA (VIN=3.3V, VOUT=1.8V) - reduces thermal load and extends battery life in portable systems. |
| Protection Features | UVLO (2.59V falling), overcurrent limit (700–1300mA peak), thermal shutdown (150°C), and overvoltage lockout (30% above nominal) - ensures robust operation under fault conditions. |
| Package | 10-lead MSOP (M10.118), Pb-free - surface-mount, 3.0mm × 3.0mm footprint with exposed thermal pad (not present in MSOP); compatible with standard reflow profiles. |
Pinout & Package
ISL6410IUZ is housed in a 10-lead MSOP package (JEDEC MO-187BA compliant, drawing M10.118), measuring 3.0mm × 3.0mm × 1.0mm with gull-wing leads. Thermal performance is characterized by θJA = 128°C/W (typical, free-air); no exposed pad is present in this variant.
| 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 from VIN. |
| 2 - VIN | Main input supply | 3.3V ±10% input; powers control circuitry and feeds UVLO detection; requires local 1µF decoupling. |
| 3 - GND | Analog ground reference | Small-signal ground for error amplifier, oscillator, and logic; must be separated from PGND to avoid noise coupling. |
| 4 - PG | Power-good open-drain output | Asserts high when VOUT reaches 94.5% of target; requires external pull-up to VIN for system sequencing. |
| 5 - FB | Feedback input | Connected directly to VOUT for fixed-output operation; internal 0.45V reference eliminates external resistor network. |
| 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 FETs; connects to external inductor; carries high dv/dt switching waveform. |
| 8 - EN | Enable input | Active-high logic control (70% of VIN threshold); pulls up via 10kΩ to VIN for default-enable operation. |
| 9 - SYNC | Frequency synchronization input | Accepts CMOS-level external clock (500–1000kHz); auto-detects rising edge; resumes internal 750kHz if sync stops. |
| 10 - VSET | Output voltage select | Logic-level input: HIGH = 1.8V, OPEN = 1.5V, LOW = 1.2V; no external bias required due to internal pull-down. |
Key Features
| Feature | Design Value |
|---|---|
| Fully integrated synchronous buck | Eliminates external diode and reduces BOM count; 230mΩ PMOS/NMOS switches enable >92% efficiency at mid-load. |
| Pin-programmable output voltage | Three fixed outputs (1.2V/1.5V/1.8V) selected solely by VSET logic state-no resistors, no trimming, no calibration. |
| Internal slope-compensated current-mode control | Stabilizes loop response across line/load variations; avoids external compensation components for 8.2µH inductor. |
| Dedicated reset supervisor with CT-timed timeout | Generates clean 25ms (typ.) reset pulse on VIN brownout; independent of PG and PWM operation for reliable processor boot. |
| Soft-start with 5.5ms ramp time | Prevents inrush current and output overshoot during enable; internally generated-no external capacitor required. |
Applications
| Microcontroller Core Supply | FPGA I/O Bank Regulation |
|---|---|
Use Scenario: Providing clean, regulated 1.2V or 1.5V to ARM Cortex-M series MCU cores operating from a 3.3V system rail. IC Role / Device Role / Timing Role: Primary DC-DC converter generating CPU core voltage with tight transient response and sequencing support via PG and EN. Use Value: Enables single-chip power solution with <5.5ms soft-start and ±1.5% output accuracy-reducing layout area and eliminating external feedback resistors. |
Use Scenario: Powering 1.8V I/O banks of Xilinx Spartan-6 or Intel MAX 10 FPGAs where input is derived from a shared 3.3V domain. IC Role / Device Role / Timing Role: Dedicated point-of-load regulator with fast load-step response and PG assertion for FPGA configuration handshake. Use Value: Delivers 600mA with <100mV output droop under 300mA step load (per datasheet waveforms), supporting reliable I/O initialization. |
| DVD Player Baseband Processor | DSL Modem MAC Subsystem |
Use Scenario: Supplying 1.8V to MPEG-2 decoder ASICs in consumer DVD players where board space and thermal dissipation are constrained. IC Role / Device Role / Timing Role: High-efficiency synchronous buck converter replacing discrete solutions to meet CE-rated standby power targets. Use Value: Achieves 92% efficiency at 200mA, reducing heat in sealed plastic enclosures and extending component lifetime. |
Use Scenario: Regulating 1.2V for QAM demodulator and MAC-layer processors in ADSL2+ modems operating from 3.3V backplane. IC Role / Device Role / Timing Role: Low-noise, EMI-controlled DC-DC stage with SYNC pin enabling spread-spectrum alignment to system clock. Use Value: 750kHz fixed frequency + SYNC capability minimizes conducted emissions in narrowband DSL bands while maintaining small filter size. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL6410AIUZ | Rated for 5.0V ±10% input; supports 3.3V/1.8V/1.2V outputs; identical MSOP-10 package and pinout. | Used where main system rail is 5V instead of 3.3V; not interchangeable without input voltage redesign. | Select ISL6410AIUZ only when VIN = 5V; ISL6410IUZ must not be operated above 3.6V. |
| TPS62231DRYT | 3.0–5.5V input; 1.2V/1.5V/1.8V/3.3V outputs; 600mA; 2.25MHz switching; 6-pin WSON package. | Higher frequency enables smaller magnetics but increases EMI sensitivity; lacks RESET and SYNC functions. | Choose TPS62231DRYT for ultra-compact layouts where 2.25MHz operation is acceptable and reset supervision is handled externally. |
Compared with ISL6410AIUZ, the ISL6410IUZ offers matched pinout and feature set but is strictly limited to 3.3V input systems; compared with TPS62231DRYT, it trades higher-frequency operation for integrated reset supervision, SYNC capability, and lower EMI at 750kHz-making it preferable for noise-sensitive baseband and timing-critical applications.
Availability
ISL6410IUZ is available at Aetrix Electronics and suitable for microcontroller core supplies, FPGA I/O regulation, DVD baseband processing, and DSL modem subsystems requiring stable component supply, long-term lifecycle support, and Pb-free compliance.
Supply support for ISL6410IUZ 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 semiconductor company founded in 1967, specializing in high-performance DC-DC converters, precision amplifiers, and interface ICs.
The ISL6410IUZ belongs to Intersil's single-channel synchronous buck regulator product line, engineered specifically for low-voltage, medium-current point-of-load applications in computing, communications, and consumer electronics where integration, efficiency, and reliability are critical.
FAQ
What input voltage range is supported by the ISL6410IUZ?
The ISL6410IUZ supports an input voltage range of 3.0V to 3.6V, optimized for 3.3V ±10% system rails. Operation outside this range-especially above 3.6V-violates absolute maximum ratings and may cause permanent damage. The UVLO circuit disables the device below 2.59V (falling) to prevent unstable startup.
How is the output voltage selected on the ISL6410IUZ?
The ISL6410IUZ output voltage is selected using the VSET pin: connect to VIN for 1.8V, leave open for 1.5V, or tie to GND for 1.2V. No external resistors are needed-the internal reference and comparator circuitry interpret these states directly, ensuring precise, repeatable output selection across temperature and process variation.
Does the ISL6410IUZ require external compensation components?
No, the ISL6410IUZ features internal compensation optimized for use with an 8.2µH inductor and ceramic output capacitors ≥10µF. The current-mode architecture with built-in slope compensation eliminates the need for external RC networks, simplifying design and improving stability across operating conditions without tuning.
What is the function of the PG (Power Good) pin on the ISL6410IUZ?
The PG pin on the ISL6410IUZ is an open-drain output that asserts high when the regulated output reaches 94.5% of its nominal value and remains within ±8% regulation. It requires an external pull-up resistor to VIN and is used for system power sequencing-enabling downstream logic only after stable voltage is confirmed.
Can the ISL6410IUZ be synchronized to an external clock?
Yes, the ISL6410IUZ accepts an external CMOS clock signal on the SYNC pin, supporting synchronization from 500kHz to 1MHz. It automatically locks to the rising edge of the first valid pulse and seamlessly reverts to its internal 750kHz oscillator if the external clock stops-ensuring uninterrupted operation without glitch or dropout.
Is the ISL6410IUZ RoHS-compliant and Pb-free?
Yes, the ISL6410IUZ is a Pb-free, RoHS-compliant device per the "Z" suffix designation. It uses 100% matte tin plating and Pb-free molding compounds, qualified for both SnPb and Pb-free reflow profiles (MSL3), and meets IPC/JEDEC J-STD-020B requirements for peak reflow temperatures.
ISL6410IUZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- 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 FAQ
1.How can I place an order for ISL6410IUZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL6410IUZ 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 reliable?
The price and inventory of ISL6410IUZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL6410IUZ is usually 5 days.
3.What payment methods are accepted for ISL6410IUZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL6410IUZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL6410IUZ?
ISL6410IUZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL6410IUZ 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?
For technical support, including ISL6410IUZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL6410IUZ requirements.
6.How does Aetrix verify that ISL6410IUZ is sourced from the original manufacturer or authorized distributors?
All ISL6410IUZ 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 meets industry standards.
7.What is the process for return or replacement of ISL6410IUZ?
All ISL6410IUZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL6410IUZ, 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 part is unused and in its original packaging.
Return procedure for ISL6410IUZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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