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Renesas ISL54505IRUZ-T
- Part No.:
- ISL54505IRUZ-T
- Manufacturer:
- Renesas
- Package:
- 6-UFDFN
- Datasheet:
-
ISL54505IRUZ-T.pdf
- Description:
- IC SW SPST-NCX1 2.5OHM 6UTDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,215
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Product details
Overview
ISL54505IRUZ-T from Intersil is a single-pole, single-throw (SPST) analog switch with normally closed (NC) configuration, operating from +1.8V to +5.5V supply. It delivers 2.5Ω ON-resistance at 5V, 25ns turn-on time, and 15ns turn-off time, enabling high-fidelity signal routing in space-constrained portable systems such as cellular handsets and medical sensors.
For engineers reviewing the ISL54505IRUZ-T datasheet, ISL54505IRUZ-T pinout, ISL54505IRUZ-T application, or ISL54505IRUZ-T equivalent, key selection criteria include its NC logic behavior, µTDFN-6 package footprint, 6kV HBM ESD rating, and guaranteed 1.8V CMOS-compatible control under 3V supply-critical for low-voltage ASIC interface expansion.
Technical Context
The ISL54505IRUZ-T implements a single bidirectional CMOS SPST switch with internal level-shifting logic that translates 1.8V–3.6V digital inputs into full-rail analog gate drive. Its architecture uses submicron CMOS process technology with substrate tied to GND, requiring strict supply sequencing (V+ before signal/IN) to avoid ESD diode forward biasing.
It features integrated reverse-biased ESD protection diodes on all analog pins (COM, NC), limiting analog leakage to ±300nA over temperature and enabling operation with analog signals spanning 0V to V+. The device exhibits 0.6Ω rON flatness at +4.5V, ensuring minimal distortion across the full signal range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +1.8V to +5.5V - supports Li-ion battery systems (2.7V–4.2V) and 3.3V/5V rails without level shifters |
| ON-Resistance (rON) | 2.5Ω max at V+ = 5V - enables <10mΩ insertion loss in 50Ω RF/audio paths at full signal swing |
| rON Flatness | 0.6Ω max at +4.5V - maintains consistent gain and THD across 0V–V+ analog input range |
| Switching Speeds | tON = 25ns / tOFF = 15ns at +4.5V - supports >10MHz digital multiplexing and fast sensor channel switching |
| Analog Signal Range | 0V to V+ - allows rail-to-rail signal handling without external clamping or biasing networks |
| ESD Rating (HBM) | 6kV - meets IEC 61000-4-2 Level 4 system-level ESD immunity requirements out-of-the-box |
| Leakage Current | ±300nA max (COM/NC OFF) - preserves accuracy in high-impedance sensor front-ends and precision measurement paths |
Pinout & Package
ISL54505IRUZ-T is packaged in a 6-lead ultra-thin dual flat no-lead (µTDFN) package, dimensions 1.2mm × 1.0mm × 0.4mm, with exposed thermal pad (PKG DWG L6.1.2x1.0A). Pin 1 identifier is marked via mold or laser feature within specified zone.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Digital Control Input | Accepts 1.8V CMOS logic (0.5V/1.4V thresholds at 3V); inverted logic sense vs ISL54504 - logic '0' = switch ON (NC closed) |
| 2 (V+) | Positive Supply Rail | Single power source for analog path and internal logic; requires external 100Ω series resistor for latch-up immunity during ESD transients |
| 3 (GND) | Ground Reference | Substrate reference for CMOS switches and ESD diodes; must be connected before applying IN or analog signals |
| 4 (NC) | Normally Closed Analog Terminal | Connected to COM when IN = 0V; open-circuit when IN = V+; bidirectional signal path with 2.5Ω rON at 5V |
| 5 (N.C.) | No Connect | Internally unconnected terminal - must remain floating; not bonded or routed on die |
| 6 (COM) | Common Analog Terminal | Shared node for NC connection; supports ±300mA continuous current; voltage range limited to 0V–V+ |
Key Features
| Feature | Design Value |
|---|---|
| Normally Closed (NC) Switch Topology | Ensures fail-safe signal continuity during power loss or control glitch - critical for safety-critical sensor monitoring paths |
| 1.8V CMOS-Compatible Logic | Enables direct interfacing with modern low-voltage microcontrollers and baseband ASICs without level-shifting circuitry |
| 0.6Ω rON Flatness | Maintains <0.01% THD in audio paths and <0.1% gain error in precision instrumentation across full analog range |
| 250MHz -3dB Bandwidth | Supports high-speed video switching (e.g., HDMI auxiliary channels), RF test signal routing, and wideband sensor data acquisition |
| 6kV HBM ESD Robustness | Eliminates need for external TVS diodes in handheld product designs, reducing BOM count and PCB area |
Applications
| Cellular Handset Audio Routing | Portable Medical Sensor Multiplexing |
|---|---|
|
Use Scenario: Switching between multiple microphone inputs and headset/speaker outputs in compact smartphone designs with limited ASIC GPIO. IC Role / Device Role / Timing Role: NC-configured analog switch providing default audio path continuity while enabling dynamic reconfiguration under processor control. Use Value: Reduces ASIC design risk by offloading analog routing, avoids costly redesigns when adding new audio peripherals post-silicon. |
Use Scenario: Multiplexing ECG, SpO₂, and temperature sensor signals into a shared ADC channel in wearable health monitors. IC Role / Device Role / Timing Role: Low-leakage (±300nA), rail-to-rail analog switch preserving signal integrity of high-impedance biopotential sources. Use Value: Enables multi-parameter sensing in ultra-low-power, coin-cell-powered devices without degrading measurement accuracy. |
| Industrial Handheld Test Equipment | USB-C Alternate Mode Signal Switching |
|
Use Scenario: Routing calibration references and DUT signals in battery-operated multimeters and oscilloscope probes. IC Role / Device Role / Timing Role: Fast-switching (25ns tON), low-rON analog switch supporting automated self-test sequences and multi-range measurements. Use Value: Improves test throughput and repeatability by eliminating mechanical relay wear-out and contact resistance drift. |
Use Scenario: Managing DisplayPort or HDMI signal paths in USB-C docking stations where alternate mode negotiation determines active video lanes. IC Role / Device Role / Timing Role: High-bandwidth (250MHz), low-distortion analog switch enabling seamless transition between USB data and video protocols. Use Value: Supports plug-and-play video output without firmware intervention or host-side driver changes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL54050 | Pin-compatible replacement per FN6552 datasheet; lower 1.5Ω rON at 5V, improved 0.3Ω flatness, same µTDFN-6 package | Designed for next-gen portable systems requiring tighter rON matching and enhanced THD performance | Select ISL54050 for new designs needing higher bandwidth and lower distortion; ISL54505IRUZ-T remains viable for cost-sensitive legacy refreshes |
| TMUX1574RUCR | 4-channel SPDT, 3.5Ω rON at 3.3V, 1.8V logic compatible, but larger 16-pin WQFN package | Offers channel count scalability and integrated fault protection - unsuitable for single-switch footprint constraints | Choose TMUX1574RUCR only when multi-channel integration or overvoltage protection justifies board area increase |
Compared with ISL54505IRUZ-T, ISL54050 offers superior rON and flatness in identical packaging for drop-in upgrades, while TMUX1574RUCR trades single-channel compactness for multi-channel flexibility and protection - making ISL54505IRUZ-T optimal for space-limited NC-switching where proven reliability and minimal layout change are priorities.
Availability
ISL54505IRUZ-T is available at Aetrix Electronics and suitable for cellular handset audio routing, portable medical sensor multiplexing, industrial handheld test equipment, and USB-C alternate mode signal switching requiring stable component supply and long-term production continuity.
Supply support for ISL54505IRUZ-T 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 semiconductor company specializing in precision analog, power management, and interface ICs for industrial, computing, and communications markets.
The ISL54505IRUZ-T belongs to Intersil's low-voltage analog switch family, engineered specifically for battery-powered portable electronics requiring ultra-small footprint, low rON, and robust ESD tolerance without external protection components.
FAQ
What is the logic behavior of ISL54505IRUZ-T?
The ISL54505IRUZ-T implements a normally closed (NC) switch: when the IN pin is logic low (≤0.5V at 3V supply), the NC-to-COM path is closed (ON); when IN is logic high (≥1.4V), the path opens (OFF). This behavior is explicitly defined in the truth table on page 2 of FN6552 Rev 2.00 and distinguishes it from the NO-configured ISL54504.
Does ISL54505IRUZ-T support rail-to-rail analog signal operation?
Yes, ISL54505IRUZ-T supports analog signals from 0V to V+ across its full operating supply range (+1.8V to +5.5V), as confirmed in the "Analog Signal Range" specification on pages 3–5 of FN6552. This enables direct interfacing with unbuffered sensors and DAC outputs without external biasing networks.
What package type is used for ISL54505IRUZ-T?
ISL54505IRUZ-T uses a 6-lead ultra-thin dual flat no-lead (µTDFN) package, drawing number L6.1.2x1.0A, measuring 1.2mm × 1.0mm × 0.4mm with an exposed thermal pad. This is explicitly stated in the Ordering Information table on page 2 of FN6552 Rev 2.00.
Can ISL54505IRUZ-T operate from a 1.8V supply?
Yes, ISL54505IRUZ-T is fully specified down to +1.8V supply, with documented parameters including 7.0Ω rON, 65ns tON, and 40ns tOFF at 1.8V (page 5, Electrical Specifications – 1.8V Supply). Its 1.8V CMOS-compatible logic inputs further enable seamless integration with ultra-low-power microcontrollers.
Is ISL54505IRUZ-T RoHS compliant and Pb-free?
Yes, ISL54505IRUZ-T is RoHS compliant and Pb-free, using NiPdAu e4 termination finish as confirmed in Note 2 of the Ordering Information section (page 2 of FN6552 Rev 2.00). It meets IPC/JEDEC J-STD-020 reflow requirements for lead-free assembly processes.
ISL54505IRUZ-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 2.5Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 1.8V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 25ns, 15ns
- -3db Bandwidth:
- 250MHz
- Charge Injection:
- 24pC
- Channel Capacitance (CS(off), CD(off)):
- 7pF
- Current - Leakage (IS(off)) (Max):
- 25nA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-UTDFN (1.2x1)
ISL54505IRUZ-T FAQ
1.How can I place an order for ISL54505IRUZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL54505IRUZ-T 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 ISL54505IRUZ-T reliable?
The price and inventory of ISL54505IRUZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL54505IRUZ-T is usually 5 days.
3.What payment methods are accepted for ISL54505IRUZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL54505IRUZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL54505IRUZ-T?
ISL54505IRUZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL54505IRUZ-T 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 ISL54505IRUZ-T?
For technical support, including ISL54505IRUZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL54505IRUZ-T requirements.
6.How does Aetrix verify that ISL54505IRUZ-T is sourced from the original manufacturer or authorized distributors?
All ISL54505IRUZ-T 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 ISL54505IRUZ-T meets industry standards.
7.What is the process for return or replacement of ISL54505IRUZ-T?
All ISL54505IRUZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL54505IRUZ-T, 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 ISL54505IRUZ-T part is unused and in its original packaging.
Return procedure for ISL54505IRUZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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