My Inquiry
My Account
Renesas ISL6410AIR
- Part No.:
- ISL6410AIR
- Manufacturer:
- Renesas
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
ISL6410AIR.pdf
- Description:
- IC REG BUCK PROG 600MA 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,648
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ISL6410AIR from Intersil is a single synchronous buck regulator with integrated N- and P-channel MOSFETs, designed for 5.0V ±10% input voltage and delivering pin-programmable outputs of 3.3V, 1.8V, or 1.2V 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. It serves as a compact DC-DC solution for FPGA core supplies in WLAN cards and DSL equipment.
For engineers reviewing the ISL6410AIR datasheet, ISL6410AIR pinout, ISL6410AIR application, or ISL6410AIR equivalent, this page provides verified technical context, confirmed QFN-16 package mapping, validated pin functions including RESET and CT timing capacitor interface, and two rigorously cross-checked alternative parts for 5V-input synchronous buck conversion.
Technical Context
The ISL6410AIR implements peak current-mode PWM control with internal slope compensation and a fixed 0.45V reference. Its integrated high-side PMOS (230mΩ rDS(ON)) and low-side NMOS (230mΩ rDS(ON)) enable synchronous rectification, eliminating external diodes and improving efficiency to 93% at 200mA with 5V→3.3V conversion.
It supports external clock synchronization from 500kHz to 1MHz via the SYNC pin, includes a dedicated RESET supervisory block with 25ms timeout (set by CT capacitor), and features UVLO thresholds of 4.27V (rising) and 4.1V (falling) for 5V operation - confirming its identity as the ISL6410A variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 5.5V - matches ISL6410A specification; not compatible with 3.3V input systems. |
| Output Voltage Options | 3.3V (VSET = H), 1.8V (VSET = OPEN), or 1.2V (VSET = L) - selected by hardwired VSET pin state; no external resistor divider needed. |
| Continuous Output Current | 600mA - sufficient for low-power FPGA I/O banks or DSP core rails without thermal derating at 85°C ambient. |
| Switching Frequency | 750kHz typical (620–860kHz range) - enables use of sub-12µH inductors and ceramic output capacitors ≥10µF. |
| Efficiency | 93% at 200mA, 5V→3.3V - achieved via synchronous MOSFETs and low quiescent current (2.3mA). |
| Protection Features | UVLO, overcurrent shutdown (700–1300mA peak limit), thermal shutdown (150°C), and overvoltage lockout (30% above nominal) - fully autonomous fault recovery. |
| Package | 16-lead 4×4mm QFN (JEDEC MO-220 VGGC) - exposes thermal pad (EP) for PCB heat sinking; Pb-free compliant. |
Pinout & Package
ISL6410AIR is housed in a 16-lead 4×4mm QFN package (JEDEC MO-220 VGGC, pkg drawing L16.4x4) with an exposed thermal pad (EP) on the underside. The package supports high thermal performance (θJA = 45°C/W, θJC = 7.5°C/W) and requires standard Pb-free reflow profile per IPC/JEDEC J-STD-020B.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Main input supply rail | 5.0V ±10% input; connects to 10µF decoupling capacitor; powers control circuitry and high-side gate driver. |
| PVCC | Power MOSFET supply | Separate input for internal FET drivers; must be tied to VIN with local 1µF ceramic capacitor. |
| PGND | Power ground return | Low-impedance return path for inductor current and MOSFET switching; must connect directly to EP and input/output capacitor grounds. |
| GND | Analog ground reference | Reference for FB, EN, SYNC, VSET, and internal error amplifier; must be isolated from PGND except at single-point star ground. |
| L | Switch node | Drain junction of internal MOSFETs; connects directly to inductor; high dv/dt node requiring short, wide trace routing. |
| FB | Output voltage feedback | Connects to VOUT for regulation; internal 0.45V reference sets output via VSET programming - no external resistors required. |
| VSET | Output voltage selection | Logic-level input: HIGH = 3.3V, OPEN = 1.8V, LOW = 1.2V - eliminates external feedback network and improves accuracy. |
| EN | Enable control | Active-high logic input (70% VIN threshold); pulls up to VIN via 10kΩ; places device in <10µA shutdown mode when low. |
| SYNC | External clock input | Accepts CMOS-level signal (500–1000kHz); auto-synchronizes on first rising edge; reverts to internal oscillator if clock stops. |
| PG | Power-good indicator | Open-drain output referenced to VIN; asserts high when VOUT reaches 94.5% of target; requires external pull-up to VIN. |
| RESET | Supervisory reset output | Push-pull active-low reset signal; asserts when VIN drops below 4.47–4.61V; timeout set by CT capacitor (25ms with 0.01µF). |
| CT | Reset timeout timing | Connects to 0.01µF capacitor to set minimum 25ms reset pulse width; linear scaling: 2.5ms/nF. |
| NC | No-connect | Pins 11 and 12 are unconnected die pads; must remain floating or grounded per layout guidelines - no electrical function. |
| EP | Exposed thermal pad | Internally connected to PGND; must be soldered to large PCB copper area for thermal conduction and EMI reduction. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated dual-MOSFET power stage | Eliminates external high-side/low-side switches and Schottky diode; reduces BOM count by ≥4 components and board area by >30%. |
| Pin-programmable output voltage | Three factory-set outputs (3.3V/1.8V/1.2V) selected solely by VSET logic level - removes feedback resistor tolerance errors and layout sensitivity. |
| Internal slope-compensated current-mode control | Enables stable operation with ceramic output capacitors down to 10µF/≤50mΩ ESR; no external compensation network required. |
| Dedicated RESET supervisory block | Provides system-level power-on reset with 25ms minimum assertion time and 30mV hysteresis - replaces discrete supervisor IC in space-constrained designs. |
| QFN-16 thermal-enhanced package | 4×4mm footprint with exposed pad achieves θJC = 7.5°C/W - supports full 600mA load at 85°C ambient without heatsink. |
Applications
| WLAN Baseband Processor Supply | DVD Player ASIC Core Rail |
|---|---|
Use Scenario: Powering the 1.8V core rail of a WLAN baseband processor (e.g., Broadcom BCM43xx) from a 5V system rail in mini-PCIe card form factor. IC Role / Device Role / Timing Role: Synchronous buck regulator providing regulated 1.8V at up to 600mA with fast transient response to burst-mode RF processing loads. Use Value: Achieves 92% efficiency at 200mA, reducing thermal load in sealed enclosure; RESET output ensures clean processor boot after 5V rail stabilization. |
Use Scenario: Generating 3.3V for MPEG-2 decoder ASIC in consumer DVD player, where board space is constrained and EMI must meet CISPR-22 Class B limits. IC Role / Device Role / Timing Role: Compact DC-DC converter with 750kHz fixed-frequency operation and SYNC pin enabling spread-spectrum clocking to suppress narrowband emissions. Use Value: QFN-16 package minimizes footprint vs. MSOP; integrated MOSFETs eliminate body-diode reverse-recovery noise; PG signal validates stable 3.3V before ASIC initialization. |
| DSL Modem PHY Interface | FPGA I/O Bank Supply |
Use Scenario: Delivering 1.2V to the analog front-end (AFE) PHY of a VDSL2 modem operating in temperature-varying telco cabinets (-40°C to 85°C). IC Role / Device Role / Timing Role: Robust buck regulator with UVLO (4.1V falling threshold), thermal shutdown (150°C), and 1.2V output set via VSET = LOW - no trimming required. Use Value: Internal current limiting (700–1300mA peak) protects against AFE short-circuits; soft-start (5.5ms) prevents inrush into large PHY decoupling caps. |
Use Scenario: Supplying configurable 3.3V/1.8V/1.2V to Xilinx Spartan-6 FPGA I/O banks in industrial control gateway with multi-rail sequencing requirements. IC Role / Device Role / Timing Role: Pin-selectable voltage source enabling single-BOM flexibility across multiple FPGA configurations; EN and PG support power-rail sequencing. Use Value: VSET programming avoids external resistor networks prone to drift; PG and RESET outputs interface directly to FPGA configuration logic without level-shifting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62231DRVR | 3MHz fixed-frequency, 600mA, 2.05–6.0V input, 1.0–3.6V adjustable output via resistor divider; no integrated RESET or SYNC. | Requires external feedback resistors and lacks power-good/reset supervision; better suited for ultra-small footprint where 3MHz allows 2.2µH inductor. | Select TPS62231DRVR only if higher switching frequency and adjustable output outweigh loss of pin-programmability and integrated supervision. |
| RT8059GJ6 | 1.5MHz fixed-frequency, 600mA, 2.5–5.5V input, 0.6–3.3V adjustable output; includes PG but no RESET or SYNC; 6-pin SOT-23 package. | Lower input voltage ceiling (5.5V max) and no VSET logic interface - requires external resistors and cannot replicate ISL6410AIR's 3.3V/1.8V/1.2V pin-select feature. | Choose RT8059GJ6 only for cost-sensitive, space-limited designs needing basic 5V→3.3V conversion without supervision or programmability. |
Compared with TPS62231DRVR and RT8059GJ6, the ISL6410AIR uniquely integrates pin-selectable output voltages, a dedicated RESET supervisor with CT-programmable timeout, and SYNC capability - making it optimal for FPGA, WLAN, and DSL applications requiring robust, compact, and self-contained 5V-input DC-DC conversion.
Availability
ISL6410AIR is available at Aetrix Electronics and suitable for WLAN cards, DSL modems, DVD player ASICs, and FPGA-based industrial gateways requiring stable component supply, long-term lifecycle assurance, and Pb-free compliance.
Supply support for ISL6410AIR 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-efficiency DC-DC regulators and precision analog solutions.
The ISL6410AIR belongs to Intersil's ISL6410A family of synchronous buck regulators targeting space-constrained, thermally demanding applications in communications and consumer electronics - emphasizing integration, reliability, and ease of use.
FAQ
What input voltage range is supported by the ISL6410AIR?
The ISL6410AIR supports an input voltage range of 4.5V to 5.5V, as specified for the ISL6410A variant. This is distinct from the ISL6410 (3.0–3.6V range). Operation outside this window triggers undervoltage lockout (UVLO) with rising threshold at 4.27V and falling threshold at 4.1V. Using 3.3V input will prevent startup and may damage internal circuitry.
How is the output voltage configured on the ISL6410AIR?
The ISL6410AIR output voltage is configured solely by the logic state of the VSET pin: HIGH (≥VIN–0.4V) selects 3.3V, OPEN (floating) selects 1.8V, and LOW (≤0.4V) selects 1.2V. No external resistors are required - the internal 0.45V reference and fixed gain eliminate feedback network errors and simplify layout.
Does the ISL6410AIR include built-in protection features?
Yes, the ISL6410AIR includes overcurrent protection (700–1300mA peak limit), thermal shutdown (150°C trip, 20–25°C hysteresis), input UVLO (4.27V rising, 4.1V falling), and overvoltage lockout (30% above nominal). All protections trigger automatic recovery after fault clearance - no latch-up or manual reset required.
What is the purpose of the CT pin on the ISL6410AIR?
The CT pin on the ISL6410AIR sets the minimum pulse width of the RESET signal using an external capacitor. With a 0.01µF capacitor, RESET remains asserted for 25ms after VIN rises above the threshold; the timeout scales linearly at 2.5ms/nF. This ensures reliable microprocessor reset timing without external RC networks.
Can the ISL6410AIR be synchronized to an external clock?
Yes, the ISL6410AIR accepts an external CMOS clock signal on the SYNC pin within 500kHz to 1MHz. It auto-detects the first rising edge and synchronizes seamlessly; if the external clock stops, it reverts to its internal 750kHz oscillator within four cycles - ensuring uninterrupted operation during clock source transitions.
ISL6410AIR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 16-VQFN Exposed Pad
- Packaging:
- Tube
- 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)
ISL6410AIR FAQ
1.How can I place an order for ISL6410AIR through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL6410AIR 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 ISL6410AIR reliable?
The price and inventory of ISL6410AIR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL6410AIR is usually 5 days.
3.What payment methods are accepted for ISL6410AIR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL6410AIR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL6410AIR?
ISL6410AIR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL6410AIR 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 ISL6410AIR?
For technical support, including ISL6410AIR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL6410AIR requirements.
6.How does Aetrix verify that ISL6410AIR is sourced from the original manufacturer or authorized distributors?
All ISL6410AIR 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 ISL6410AIR meets industry standards.
7.What is the process for return or replacement of ISL6410AIR?
All ISL6410AIR units undergo pre-shipment inspection (PSI). If there is an issue with ISL6410AIR, 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 ISL6410AIR part is unused and in its original packaging.
Return procedure for ISL6410AIR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL6410AIR Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
