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Nexperia USA Inc. LSF0101GXZ
- Part No.:
- LSF0101GXZ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
LSF0101GXZ.pdf
- Description:
- IC TRANSLTR BIDIRECTIONAL 6X2SON
- Quantity:
- Payment:
- Shipping:
Inventory:6,381
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Product details
Overview
LSF0101GXZ from Nexperia is a 1-bit bidirectional multi-voltage level translator supporting open-drain and push-pull interfaces, with no direction pin required, ≤100 MHz up-translation and ≥100 MHz down-translation at ≤30 pF load, 5 V tolerant I/O pins, and operation from −40 °C to +125 °C. It enables voltage translation between 0.95 V/1.2 V/1.8 V/2.5 V/3.3 V and 5.0 V in space-constrained I²C, SMBus, and GPIO interconnects.
For engineers reviewing the LSF0101GXZ datasheet, LSF0101GXZ pinout, LSF0101GXZ application, or LSF0101GXZ equivalent, this page delivers verified pin functions, real-world timing performance at multiple Vref and CL conditions, thermal-enhanced X2SON6 package details, and validated alternatives for mixed-voltage system design.
Technical Context
The LSF0101GXZ uses passive MOSFET-based translation without internal level-shifting circuitry, enabling automatic bidirectional signal flow based on relative reference voltages (refA and refB). Its EN pin controls channel enablement with active-HIGH logic, and high-impedance I/O states occur when EN = LOW.
It supports dynamic translation across five voltage pairings (e.g., 1.8 V ↔ 3.3 V, 2.5 V ↔ 5.0 V), with ON-resistance as low as 3 Ω at VrefA = 2.5 V and 32 mA, and propagation delays as low as 0.3 ns (tPLH, down-translation, VrefA = 2.3 V, CL = 15 pF).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channel count | 1-bit bidirectional channel with automatic direction sensing |
| Up-translation speed | ≤100 MHz at ≤30 pF load; enables fast interface bridging from low- to high-voltage domains |
| Down-translation speed | ≥100 MHz at ≤30 pF load; preserves signal integrity when driving higher-voltage buses from low-VCC controllers |
| Voltage pairing range | 0.95 V ↔ 1.8/2.5/3.3/5.0 V; 1.2 V ↔ same; 1.8 V ↔ 2.5/3.3/5.0 V; 2.5 V ↔ 3.3/5.0 V; 3.3 V ↔ 5.0 V |
| ON-resistance (RON) | 3 Ω typical at VrefA = 2.5 V, 32 mA - minimizes voltage drop and distortion in push-pull mode |
| Input leakage current | 1 μA typical at −40 °C to +125 °C - ensures low power consumption in always-on I/O bridges |
| ESD protection | HBM >2000 V, CDM >1000 V - sustains handling and board-level ESD events without latch-up |
Pinout & Package
X2SON6 package (SOT1255-2): ultra-thin 1.0 × 0.8 × 0.32 mm thermal-enhanced no-lead outline with wettable flanks; optimized for automated optical inspection and high-density routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Ground reference | Common 0 V return path for all internal switching and biasing; must be low-impedance |
| refA | Reference voltage A | Defines lower-side voltage domain (e.g., 1.8 V) for bidirectional translation; connects to local VCC_A |
| A1 | Data I/O port A | Bidirectional signal terminal tied to low-voltage side (e.g., MCU GPIO); shares RON path with B1 |
| B1 | Data I/O port B | Bidirectional signal terminal tied to high-voltage side (e.g., 3.3 V I²C bus); electrically symmetric to A1 |
| refB | Reference voltage B | Defines upper-side voltage domain (e.g., 3.3 V); connects to local VCC_B; enables asymmetric translation |
| EN | Enable input | Active-HIGH control: drives A1/B1 into high-impedance state when LOW; synchronizes power sequencing |
Key Features
| Feature | Design Value |
|---|---|
| No direction pin required | Eliminates GPIO overhead and firmware coordination; enables true plug-and-play voltage bridging |
| Flow-through pinout | Linear A1–GND–refA–refB–B1–EN arrangement simplifies PCB trace routing and reduces crosstalk |
| 5 V tolerant I/O pins | Supports direct connection to TTL-level peripherals without external clamping or resistors |
| Hot-insertion support | EN-controlled high-Z state prevents bus contention during live module insertion or removal |
| −40 °C to +125 °C operation | Validated performance across industrial and telecom ambient ranges without derating |
Applications
| I²C Bus Bridging | SMBus / PMBus Interfacing |
|---|---|
|
Use Scenario: Connecting a 1.8 V microcontroller I²C master to a 3.3 V sensor slave in an industrial data acquisition node. IC Role / Device Role / Timing Role: Bidirectional level translator on SDA/SCL lines, preserving I²C timing compliance and open-drain behavior without pull-up conflicts. Use Value: Enables interoperability without external MOSFETs or discrete resistor networks; maintains <1.2 ns tPHL at 30 pF load for 400 kHz+ operation. |
Use Scenario: Integrating a 2.5 V baseband processor with a 5.0 V power-management IC using SMBus in telecom infrastructure equipment. IC Role / Device Role / Timing Role: Voltage translator on SMBus data/clock lines, supporting hot-plug detection and bidirectional command/response traffic. Use Value: Delivers ≥100 MHz down-translation bandwidth and 5 V tolerance, eliminating need for separate level-shifting buffers on critical control busses. |
| GPIO Expansion Interface | MDIO Link Management |
|
Use Scenario: Extending GPIOs from a 1.2 V FPGA bank to drive 3.3 V status LEDs and receive 5 V switch inputs in embedded computing. IC Role / Device Role / Timing Role: General-purpose bidirectional I/O translator with configurable refA/refB, supporting both push-pull and open-drain signaling modes. Use Value: Single-device solution replaces dual-MOSFET designs; low 1 μA leakage ensures minimal standby current impact on battery-backed systems. |
Use Scenario: Level-shifting MDIO clock/data between a 1.8 V Ethernet PHY controller and a 2.5 V MAC in industrial switches. IC Role / Device Role / Timing Role: Deterministic low-latency translator ensuring MDIO timing margins are met across voltage domains. Use Value: Achieves 0.3 ns tPLH (down-translation) at 15 pF, guaranteeing setup/hold compliance for 2.5 MHz MDIO operation per IEEE 802.3. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional voltage translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TXS0101DCUR | TI device requires external pull-up resistors on both sides; no internal RON optimization; max 60 MHz up/down at 30 pF | Less suitable for high-speed I²C or MDIO where sub-1 ns propagation delay is required | Select when cost sensitivity outweighs timing performance and external resistor layout is acceptable |
| PCA9306DCUR | Requires dual-directional enable control; higher typical RON (7 Ω); limited to 1.2 V–3.3 V translation only | Not rated for 5 V tolerant I/O; unsuitable for TTL-compatible interfaces or 3.3 V ↔ 5 V bridging | Prefer for legacy 1.8 V ↔ 3.3 V GPIO expansion where 5 V tolerance is unnecessary |
Compared with TXS0101DCUR and PCA9306DCUR, the LSF0101GXZ delivers superior high-speed translation (≥100 MHz), native 5 V I/O tolerance, and lower RON, making it optimal for next-generation telecom and industrial interfaces requiring minimal latency and broad voltage flexibility.
Availability
LSF0101GXZ is available at Aetrix Electronics and suitable for I²C bus bridging, SMBus interfacing, GPIO expansion, and MDIO link management requiring stable component supply, extended temperature operation, and high-volume manufacturability.
Supply support for LSF0101GXZ 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
Nexperia is a global semiconductor expert delivering high-performance logic, analog, and MOSFET solutions with focus on efficiency, reliability, and miniaturization for industrial, automotive, and computing markets.
The LSF0101GXZ belongs to Nexperia's level translation portfolio, engineered specifically for low-latency, no-direction-pin bridging of mixed-voltage digital interfaces in space- and power-constrained systems.
FAQ
What is the maximum capacitive load the LSF0101GXZ supports while maintaining 100 MHz down-translation?
The LSF0101GXZ guarantees ≥100 MHz down-translation performance at ≤30 pF total capacitive load, including PCB trace, connector, and destination input capacitance. At 50 pF, down-translation remains ≥50 MHz. Exceeding 30 pF degrades timing margin and may violate setup/hold requirements in high-speed protocols like I²C Fast-mode Plus.
Can the LSF0101GXZ translate between 1.0 V and 5.0 V directly?
Yes - the LSF0101GXZ supports 1.0 V ↔ 5.0 V translation when refA = 1.0 V and refB = 5.0 V. Static characteristics confirm RON = 7 Ω typical at 1.0 V and 10 mA, and the device maintains 5 V tolerance on all I/O pins, enabling safe interface with 5 V TTL logic without external protection.
Does the EN pin affect signal integrity during active translation?
No - when EN = HIGH, the LSF0101GXZ operates transparently with no added propagation delay or signal distortion. The EN pin only places A1 and B1 into high-impedance state when LOW; it does not gate or buffer signals during normal operation, preserving nanosecond-scale timing fidelity.
How does the X2SON6 (SOT1255-2) package improve thermal performance over TSSOP6?
The X2SON6 package features a thermal-enhanced die pad and thinner profile (0.32 mm), achieving 3.3 mW/K derating above 75 °C versus 3.7 mW/K for TSSOP6 above 83 °C. This yields ~15 % lower junction-to-ambient thermal resistance, critical for sustained 100 MHz operation in sealed industrial enclosures.
LSF0101GXZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Translator Type:
- Voltage Level
- Channel Type:
- Bidirectional
- Number of Circuits:
- 1
- Channels per Circuit:
- 1
- Voltage - VCCA:
- 0.95 V ~ 4.5 V
- Voltage - VCCB:
- 1.8 V ~ 5.5 V
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- Open Drain, Push-Pull
- Data Rate:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-XFDFN
LSF0101GXZ FAQ
1.How can I place an order for LSF0101GXZ through Aetrix?
Please submit a Request for Quotation (RFQ) for LSF0101GXZ 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 LSF0101GXZ reliable?
The price and inventory of LSF0101GXZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LSF0101GXZ is usually 5 days.
3.What payment methods are accepted for LSF0101GXZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LSF0101GXZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LSF0101GXZ?
LSF0101GXZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LSF0101GXZ 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 LSF0101GXZ?
For technical support, including LSF0101GXZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LSF0101GXZ requirements.
6.How does Aetrix verify that LSF0101GXZ is sourced from the original manufacturer or authorized distributors?
All LSF0101GXZ 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 LSF0101GXZ meets industry standards.
7.What is the process for return or replacement of LSF0101GXZ?
All LSF0101GXZ units undergo pre-shipment inspection (PSI). If there is an issue with LSF0101GXZ, 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 LSF0101GXZ part is unused and in its original packaging.
Return procedure for LSF0101GXZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LSF0101GXZ Tags
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