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Renesas ISL54052IRUZ-T
- Part No.:
- ISL54052IRUZ-T
- Manufacturer:
- Renesas
- Package:
- 6-UFDFN
- Datasheet:
-
ISL54052IRUZ-T.pdf
- Description:
- IC SW SPST-NCX1 860MOHM 6UTDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,832
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Product details
Overview
ISL54052IRUZ-T from Renesas (formerly Intersil) is a single-pole, single-throw (SPST) analog switch with normally closed (NC) configuration, designed for bidirectional signal routing in low-voltage portable systems. It operates from a single +1.8V to +5.5V supply, delivers 0.8Ω typical ON-resistance at 5V, achieves 24ns turn-on/10ns turn-off times, and supports 1.8V logic compatibility-enabling use in cellular phone audio paths and ASIC I/O expansion.
For engineers reviewing the ISL54052IRUZ-T datasheet, ISL54052IRUZ-T pinout, ISL54052IRUZ-T application, or ISL54052IRUZ-T equivalent, key selection criteria include NC switching behavior, µTDFN-6 package footprint, sub-1Ω rON across 1.8–5.5V supply range, <30ns switching speed at 4.5V, and ESD robustness (>6kV HBM), all critical for space-constrained battery-powered designs.
Technical Context
The ISL54052IRUZ-T implements a CMOS transmission gate architecture optimized for low-voltage operation, with internal level-shifting circuitry enabling 1.8V logic compatibility on a 3V supply. Its analog signal path supports rail-to-rail operation (0V to V+), and ESD protection diodes are integrated between each analog pin and both V+ and GND.
Unlike bipolar-supply switches, it requires strict supply sequencing: V+ must be applied before any input signals to avoid forward-biasing internal protection diodes. The device exhibits monotonic rON flatness (0.25Ω typ at 4.5V) and maintains consistent -3dB bandwidth (190MHz at 5V) across its full supply range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | Single SPST, normally closed (NC) - conducts when control input is logic low (≤0.5V) |
| ON-Resistance (rON) | 0.8Ω typ at 5V supply - enables minimal signal attenuation in high-fidelity audio or precision sensor paths |
| Switching Speed | tON = 24ns / tOFF = 10ns at 4.5V - supports fast multiplexing in real-time data acquisition |
| Supply Range | +1.8V to +5.5V single supply - compatible with Li-ion battery discharge profile and 3.3V/5V system rails |
| Logic Compatibility | 1.8V CMOS input thresholds (VINH ≥1.4V, VINL ≤0.5V at 3V supply) - interfaces directly with modern low-voltage microcontrollers |
| ESD Rating | >6kV HBM - provides robust handling margin during PCB assembly and end-equipment integration |
| Analog Bandwidth | 190MHz -3dB bandwidth at 5V - suitable for video switching and high-speed digital signal routing |
Pinout & Package
ISL54052IRUZ-T is packaged in a 6-lead ultra-thin dual flat no-lead (µTDFN) measuring 1.2mm × 1.0mm × 0.5mm (pitch: 0.40mm), RoHS-compliant, with wettable flank side walls for automated optical inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Digital control input | Active-low logic input: NC path closed when IN ≤0.5V; open when IN ≥1.4V (at 3V supply) |
| 2 (V+) | Positive power supply | Single supply rail (+1.8V to +5.5V); powers internal logic and analog switch core |
| 3 (GND) | Ground reference | Return path for supply and logic; must be connected before applying analog signals |
| 4 (NC) | Normally closed analog terminal | Conducts to COM when IN is low; electrically isolated when IN is high |
| 5 (NC) | No connect | Internally unconnected; must be left floating or tied to GND per layout best practice |
| 6 (COM) | Common analog terminal | Shared node for bidirectional signal flow between NC and external circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low ON-resistance | 0.8Ω typ at 5V ensures <0.1% gain error in 50Ω systems and preserves SNR in audio paths |
| rON flatness | 0.25Ω max over full analog signal range (0V to V+) minimizes harmonic distortion in wide-dynamic-range signals |
| Low charge injection | 26pC typ reduces voltage glitch on sampled nodes - critical for precision ADC front-ends |
| High off isolation | 80dB at 100kHz suppresses crosstalk between adjacent channels in multi-signal routing |
| Small footprint packaging | 1.2mm × 1.0mm µTDFN saves >60% board area vs. SOT-23-6 - essential for smartphone camera modules |
Applications
| Cellular Phone Audio Routing | Portable Medical Sensor Multiplexing |
|---|---|
|
Use Scenario: Switching microphone inputs between primary and secondary voice capture paths in dual-SIM smartphones. IC Role / Device Role / Timing Role: NC-configured analog switch providing fail-safe default connection to main mic when processor is in deep sleep. Use Value: Eliminates need for external pull-up resistors or auxiliary biasing; 0.8Ω rON preserves signal integrity across 20Hz–20kHz audio band. |
Use Scenario: Selecting between ECG, SpO₂, and temperature sensor outputs feeding a shared ADC in handheld patient monitors. IC Role / Device Role / Timing Role: Low-leakage (<300nA) NC switch ensuring stable DC baseline during sensor channel transitions. Use Value: Sub-1Ω rON prevents gain drift in instrumentation amplifier stages; 190MHz bandwidth accommodates fast pulse detection. |
| Laptop Docking Station Signal Expansion | Wearable Biometric Data Acquisition |
|
Use Scenario: Adding HDMI or USB-C alternate mode analog audio lanes to legacy laptop docking stations using limited ASIC GPIOs. IC Role / Device Role / Timing Role: Logic-level compatible SPST switch extending analog I/O capability without redesigning baseband IC. Use Value: 1.8V logic support allows direct interface with low-power MCU GPIOs; µTDFN package fits within tight connector zone layouts. |
Use Scenario: Routing photodiode current from multiple LED wavelengths to a single transimpedance amplifier in smartwatches. IC Role / Device Role / Timing Role: Fast-switching (24ns tON) NC device enabling time-division multiplexing of optical sensing cycles. Use Value: 26pC charge injection prevents baseline shift in low-current (nA-range) measurements; 6kV HBM withstands ESD events during wear testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMUX1574RTER | SPDT, dual-channel, 0.5Ω rON at 3.3V; requires external enable logic for NC emulation | Higher channel count but larger 16-pin QFN; lacks native NC function - needs added logic | Select when multi-channel routing is required and board space permits larger package |
| ADG849YRMZ-REEL7 | SPST NO configuration only; 0.35Ω rON at 5V; 1.6mm × 1.6mm MSOP-8 package | Requires external pull-down to simulate NC behavior; higher rON flatness (0.45Ω) | Prefer for ultra-low rON priority where NC functionality can be implemented externally |
Compared with TMUX1574RTER and ADG849YRMZ-REEL7, ISL54052IRUZ-T uniquely delivers true hardware-native NC operation in a 1.2mm × 1.0mm footprint with verified 0.8Ω rON at 5V - making it optimal for space-constrained, single-channel fail-safe signal routing where minimal BOM count and guaranteed default state are mandatory.
Availability
ISL54052IRUZ-T is available at Aetrix Electronics and suitable for cellular phone audio routing, portable medical sensor multiplexing, laptop docking station signal expansion, and wearable biometric data acquisition requiring stable component supply across extended production lifecycles.
Supply support for ISL54052IRUZ-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
Renesas Electronics Corporation acquired Intersil in 2017 and continues to support its precision analog portfolio, emphasizing high-performance, low-power interface solutions for industrial, automotive, and consumer markets.
The ISL54052IRUZ-T belongs to Intersil's ultra-low rON analog switch family, engineered specifically for battery-powered portable equipment where minimal power loss, tiny form factor, and rail-to-rail signal handling are critical design requirements.
FAQ
What is the default (power-off) state of the ISL54052IRUZ-T switch?
The ISL54052IRUZ-T is a normally closed (NC) analog switch: when the IN pin is at logic low (≤0.5V) or unpowered, the NC-to-COM path remains conductive. This fail-safe behavior ensures continuity in critical signal paths during MCU reset or power-loss events. At V+ = 5V, the typical rON in this state is 0.8Ω, confirmed in the FN6459 datasheet Section "Truth Table" and Electrical Specifications tables.
Does the ISL54052IRUZ-T support rail-to-rail analog signal operation?
Yes, the ISL54052IRUZ-T supports analog signal voltages from 0V to V+ across its full operating supply range (1.8V to 5.5V). This rail-to-rail capability is explicitly specified in the "Operating Conditions" table (Page 3) and "Analog Signal Range" parameter (Page 3, Electrical Specifications), enabling use with sensors, audio codecs, and other circuits that output signals near supply rails without clipping.
Can the ISL54052IRUZ-T be used with a 1.8V supply while maintaining reliable switching?
Yes - the ISL54052IRUZ-T is fully specified down to 1.8V supply, with verified performance including 2.3Ω typical rON, 68ns tON, and 45ns tOFF at 1.8V (Page 5, Electrical Specifications – 1.8V Supply). Input logic thresholds scale accordingly (VINH ≥1.0V, VINL ≤0.4V), ensuring interoperability with 1.8V microcontrollers and FPGAs without level-shifting circuitry.
What is the thermal resistance (θJA) of the ISL54052IRUZ-T in its µTDFN package?
The ISL54052IRUZ-T in the 6-lead µTDFN package (L6.1.2x1.0A) has a typical junction-to-ambient thermal resistance (θJA) of 175°C/W, as documented in the "Thermal Information" table on Page 3 of FN6459. This value assumes mounting on a high thermal conductivity test board in free air; actual board-level θJA will vary based on copper pour, vias, and airflow.
Is the ISL54052IRUZ-T pin-compatible with the ISL54051IRUZ-T?
Yes - the ISL54052IRUZ-T and ISL54051IRUZ-T share identical 6-lead µTDFN pinouts and package dimensions (L6.1.2x1.0A), differing only in internal switch configuration (NC vs. NO). Pin functions (IN, V+, GND, NC/NO, N.C., COM) match exactly, allowing direct PCB replacement where NC behavior is required instead of NO, provided firmware logic polarity is adjusted.
ISL54052IRUZ-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):
- 860mOhm (Typ)
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 1.8V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 24ns, 10ns
- -3db Bandwidth:
- 190MHz
- Charge Injection:
- 26pC
- Channel Capacitance (CS(off), CD(off)):
- 16pF
- Current - Leakage (IS(off)) (Max):
- 10nA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-UTDFN (1.2x1)
ISL54052IRUZ-T FAQ
1.How can I place an order for ISL54052IRUZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL54052IRUZ-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 ISL54052IRUZ-T reliable?
The price and inventory of ISL54052IRUZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL54052IRUZ-T is usually 5 days.
3.What payment methods are accepted for ISL54052IRUZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL54052IRUZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL54052IRUZ-T?
ISL54052IRUZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL54052IRUZ-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 ISL54052IRUZ-T?
For technical support, including ISL54052IRUZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL54052IRUZ-T requirements.
6.How does Aetrix verify that ISL54052IRUZ-T is sourced from the original manufacturer or authorized distributors?
All ISL54052IRUZ-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 ISL54052IRUZ-T meets industry standards.
7.What is the process for return or replacement of ISL54052IRUZ-T?
All ISL54052IRUZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL54052IRUZ-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 ISL54052IRUZ-T part is unused and in its original packaging.
Return procedure for ISL54052IRUZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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