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Renesas ISL6410IRZ-TK
- Part No.:
- ISL6410IRZ-TK
- Manufacturer:
- Renesas
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
ISL6410IRZ-TK.pdf
- Description:
- IC REG BUCK PROG 600MA 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,551
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Product details
Overview
ISL6410IRZ-TK from Intersil is a single synchronous buck regulator with integrated N- and P-channel 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 use in FPGA, microcontroller, and ASIC core power applications.
For engineers reviewing the ISL6410IRZ-TK datasheet, ISL6410IRZ-TK pinout, ISL6410IRZ-TK application, or ISL6410IRZ-TK equivalent, key selection criteria include its MSOP-10 package, fixed-output programmability via VSET, integrated FET architecture eliminating external high-side/low-side switches, and thermal/overcurrent protection with 150°C shutdown threshold.
Technical Context
The ISL6410IRZ-TK implements a peak current-mode PWM controller with internal slope compensation and a 0.45V reference voltage. Its integrated dual-MOSFET power stage uses PVCC and PGND terminals for optimized gate drive and power return paths, while GND serves as the small-signal reference for error amplifier and feedback circuitry.
It supports external clock synchronization from 500kHz to 1MHz on the SYNC pin, maintains regulation during no-load operation via controlled inductor current reversal, and initiates soft-start on EN assertion with a 5.5ms ramp time based on 750kHz oscillator cycles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.0V to 3.6V - matches standard 3.3V ±10% supply rails; UVLO rising threshold at 2.68V prevents startup under brownout. |
| Output Voltage Options | 1.2V (VSET = L), 1.5V (VSET = open), 1.8V (VSET = H) - selectable without external resistors, enabling rapid configuration for different logic cores. |
| Continuous Output Current | 600mA - sufficient for low-power FPGA I/O banks or microcontroller cores; peak limit at 1300mA provides short-circuit headroom. |
| Switching Frequency | 750kHz typical - enables use of compact 8.2µH inductors and ceramic output capacitors ≥10µF with ≤50mΩ ESR. |
| Efficiency | 92% at 200mA, VIN=3.3V, VOUT=1.8V - achieved via synchronous rectification with 230mΩ PMOS/NMOS rDS(ON), reducing conduction loss vs. diode-based solutions. |
| Thermal Shutdown | 150°C rising threshold with 20–25°C hysteresis - protects silicon during sustained overload or poor PCB thermal design. |
| Power-Good Threshold | ±8.0% of nominal output - asserts PG high only when regulation is stable, supporting safe processor reset sequencing. |
Pinout & Package
ISL6410IRZ-TK is housed in a Pb-free 10-lead MSOP package (JEDEC MO-187BA, M10.118), measuring 3.0mm × 3.0mm × 1.0mm with 0.5mm lead pitch. The exposed pad is not present in MSOP; thermal dissipation relies on PCB copper area under leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - PVCC | Power MOSFET supply | Provides dedicated gate drive voltage to internal P- and N-channel FETs; requires local 1µF decoupling for transient current delivery. |
| 2 - VIN | Main input supply | 3.3V ±10% input source; powers control circuitry and feeds PVCC via internal LDO; UVLO monitoring occurs here. |
| 3 - GND | Analog ground reference | Small-signal ground for error amplifier, oscillator, and feedback comparator; must be separated from PGND to avoid noise coupling. |
| 4 - PG | Open-drain power-good indicator | Active-high signal pulled up to VIN; asserts when VOUT reaches 94.5% of target; used for system power sequencing and fault detection. |
| 5 - FB | Feedback input | Connects directly to VOUT for closed-loop regulation; internal 0.45V reference sets output via resistor divider in non-pin-programmed variants (not used here). |
| 6 - PGND | Power ground return | High-current return path for inductor and internal FETs; must connect to low-impedance PCB plane and tie to VIN capacitor ground. |
| 7 - L | Switch node | Drain junction of internal FETs; connects to external inductor; carries high dv/dt switching waveform - requires tight layout to minimize EMI. |
| 8 - EN | Enable control | Logic-high (>70% VIN) enables regulation; logic-low (<30% VIN) forces shutdown with <10µA quiescent current at 25°C. |
| 9 - SYNC | Frequency synchronization input | Accepts CMOS-level external clock (500–1000kHz); device locks to first rising edge and reverts to internal 750kHz oscillator if sync signal stops. |
| 10 - VSET | Output voltage select | Configures output: grounded = 1.2V, open = 1.5V, tied to VIN = 1.8V; eliminates need for external feedback resistors in standard configurations. |
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 output voltage | Three fixed outputs (1.2V/1.5V/1.8V) selected solely by VSET connection - no external resistors required for standard FPGA/microcontroller core rails. |
| Internal slope-compensated current-mode control | Enables stable operation across wide input/output ranges without external compensation components; supports ceramic output capacitors down to 10µF. |
| Comprehensive protection suite | Includes UVLO, overcurrent limiting (trip at 1300mA peak), overvoltage shutdown (30% above nominal), and thermal shutdown (150°C) with hysteresis. |
| Power-good and reset supervision | PG output signals regulation status; RESET block monitors VIN and asserts active-low reset for 25ms minimum after UVLO recovery (CT = 10nF). |
Applications
| FPGA Core Power | Microcontroller I/O Supply |
|---|---|
Use Scenario: Providing regulated 1.8V rail to Spartan-3 or Cyclone II FPGA core logic with dynamic load steps up to 400mA. IC Role / Device Role / Timing Role: Primary DC-DC converter delivering tightly regulated core voltage; PG signal synchronizes FPGA configuration release. Use Value: Integrated FETs and 750kHz switching allow compact 1210-size inductor and 10µF ceramic capacitor, reducing board area by >35% vs. controller+external MOSFET solution. |
Use Scenario: Generating 1.5V supply for ARM7TDMI or PIC32MX I/O banks operating from 3.3V system rail. IC Role / Device Role / Timing Role: Secondary point-of-load regulator; VSET open configuration delivers 1.5V without external feedback network. Use Value: Pin-programmable output avoids precision resistor placement and trimming, accelerating prototype iteration and reducing test overhead. |
| DSP Memory Interface | ASIC Test Fixture Power |
Use Scenario: Powering DDR SDRAM termination voltage (VTT) or I/O buffers in TI C6000 DSP designs requiring fast transient response. IC Role / Device Role / Timing Role: Fast-response buck regulator with internal current sensing; soft-start prevents inrush into large memory bus capacitance. Use Value: 5.5ms soft-start and 92% efficiency at 200mA reduce thermal stress during power-up and extend battery life in portable test equipment. |
Use Scenario: Lab-based ASIC characterization board needing stable, switchable 1.2V/1.8V supplies with visible power status. IC Role / Device Role / Timing Role: Programmable bench supply element; PG output drives LED indicator and enables downstream logic only when regulation is confirmed. Use Value: Dual-purpose PG and RESET outputs simplify test fixture control logic and eliminate need for discrete supervisor ICs. |
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, 1.8V/1.5V/1.2V pin-selectable; smaller 6-pin WSON package; no SYNC or PG pins. | Lacks power-good signaling and external clock sync - unsuitable where system-level sequencing or EMI-controlled switching is required. | Choose TPS62231DRYR for space-constrained, high-frequency applications without sequencing needs; retain ISL6410IRZ-TK when PG, SYNC, or MSOP hand-solderability is critical. |
| RT8059NGQW | 2A rated, 1.5MHz, adjustable output via resistor divider; includes light-load pulse-skipping; no pin-programmable fixed outputs. | Requires external feedback resistors and lacks VSET simplicity - increases BOM and layout effort for fixed-voltage use cases. | Choose RT8059NGQW for higher current or adjustable output flexibility; select ISL6410IRZ-TK when 600mA fixed outputs, minimal external parts, and MSOP manufacturability are priorities. |
Compared with TPS62231DRYR and RT8059NGQW, the ISL6410IRZ-TK uniquely combines pin-programmable fixed outputs, power-good signaling, and external clock synchronization in an industry-standard MSOP-10 package - making it optimal for FPGA/microcontroller core power where reliability, sequencing, and layout simplicity outweigh raw current or frequency specs.
Availability
ISL6410IRZ-TK is available at Aetrix Electronics and suitable for FPGA core power, microcontroller I/O supply, DSP memory interface, ASIC test fixtures, and embedded industrial controllers requiring stable component supply and long-term obsolescence management.
Supply support for ISL6410IRZ-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, specializes in high-performance analog and power management ICs for computing, communications, and industrial markets.
The ISL6410IRZ-TK belongs to Intersil's single-channel synchronous buck regulator product line, engineered specifically for low-noise, space-efficient core voltage regulation in programmable logic and embedded processors.
FAQ
What input voltage range does the ISL6410IRZ-TK support?
The ISL6410IRZ-TK supports an input voltage range of 3.0V to 3.6V, aligned with 3.3V ±10% system rails. Its undervoltage lockout (UVLO) activates below 2.68V (rising threshold), preventing erratic startup during brownout conditions. This ensures reliable operation in embedded systems powered from regulated 3.3V sources such as USB-powered devices or FPGA carrier boards.
How is the output voltage configured on the ISL6410IRZ-TK?
The ISL6410IRZ-TK output voltage is set via the VSET pin: grounding VSET selects 1.2V, leaving it open selects 1.5V, and connecting it to VIN selects 1.8V. No external feedback resistors are needed, simplifying design for common logic supply rails. This pin-programmable feature is intrinsic to the ISL6410IRZ-TK and differs from adjustable regulators requiring precision resistor networks.
Does the ISL6410IRZ-TK include built-in protection features?
Yes, the ISL6410IRZ-TK integrates multiple protection mechanisms: undervoltage lockout (UVLO), overcurrent limiting (peak 1300mA), overvoltage shutdown (30% above nominal), thermal shutdown (150°C), and power-good monitoring. These functions operate autonomously without external components, enhancing system robustness in FPGA and microcontroller applications where supply integrity is critical.
Can the ISL6410IRZ-TK be synchronized to an external clock?
Yes, the ISL6410IRZ-TK accepts an external CMOS clock signal on the SYNC pin across 500kHz to 1MHz. It locks to the first rising edge and automatically reverts to its internal 750kHz oscillator if the external clock stops. This capability allows EMI reduction through frequency dithering or alignment with system clocks - a feature not found in many competing 600mA buck regulators.
What package type and footprint does the ISL6410IRZ-TK use?
The ISL6410IRZ-TK uses a Pb-free 10-lead MSOP package (JEDEC MO-187BA, M10.118), measuring 3.0mm × 3.0mm × 1.0mm with 0.5mm lead pitch. It is compatible with standard reflow profiles and offers better hand-solderability and thermal performance than QFN alternatives, making it suitable for both high-volume manufacturing and engineering prototypes.
ISL6410IRZ-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):
- 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:
- 16-QFN (4x4)
ISL6410IRZ-TK FAQ
1.How can I place an order for ISL6410IRZ-TK through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL6410IRZ-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 ISL6410IRZ-TK reliable?
The price and inventory of ISL6410IRZ-TK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL6410IRZ-TK is usually 5 days.
3.What payment methods are accepted for ISL6410IRZ-TK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL6410IRZ-TK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL6410IRZ-TK?
ISL6410IRZ-TK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL6410IRZ-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 ISL6410IRZ-TK?
For technical support, including ISL6410IRZ-TK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL6410IRZ-TK requirements.
6.How does Aetrix verify that ISL6410IRZ-TK is sourced from the original manufacturer or authorized distributors?
All ISL6410IRZ-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 ISL6410IRZ-TK meets industry standards.
7.What is the process for return or replacement of ISL6410IRZ-TK?
All ISL6410IRZ-TK units undergo pre-shipment inspection (PSI). If there is an issue with ISL6410IRZ-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 ISL6410IRZ-TK part is unused and in its original packaging.
Return procedure for ISL6410IRZ-TK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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