Nexperia USA Inc. LSF0101GWH

Overview

LSF0101GWH 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 domains in I²C, SMBus, and GPIO interconnects.

For engineers reviewing the LSF0101GWH datasheet, LSF0101GWH pinout, LSF0101GWH application, or LSF0101GWH equivalent, this page delivers verified electrical parameters, TSSOP6 package mapping, flow-through pinout details, and real-world interface compatibility for mixed-voltage system design and signal integrity validation.

Technical Context

The LSF0101GWH implements passive FET-based bidirectional translation without internal level-shifting circuitry or direction control logic, relying on external pull-up resistors and reference voltages (refA/refB) to define domain-specific logic thresholds. Its enable (EN) input controls high-impedance isolation of both A1 and B1 channels.

It supports simultaneous up-translation (e.g., 1.8 V → 3.3 V) and down-translation (e.g., 3.3 V → 1.8 V) on the same channel, with propagation delays as low as 0.3 ns (tPLH/tPHL) at 15 pF load and VrefA = 2.3 V, and ON-resistance as low as 3 Ω at VrefA = 2.5 V and IO = 32 mA.

Key Specifications

Pinout & Package

TSSOP6 (SOT363-2) package: plastic thin shrink small outline, 6 leads, 1.25 mm body width, flow-through pinout optimized for PCB trace routing.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar bidirectional level translation applications.

Compared with TXS0101DSER and PCA9306DCUR, the LSF0101GWH offers broader voltage pairing (0.95 V to 5.0 V), integrated enable control, lower RON, and superior high-temperature performance - making it optimal for industrial and telecom systems requiring field-upgradeable or mixed-rail interoperability.

Availability

LSF0101GWH is available at Aetrix Electronics and suitable for telecom infrastructure, industrial automation, and personal computing applications requiring stable component supply, long-term lifecycle support, and guaranteed traceability.

Supply support for LSF0101GWH 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 focused on essential efficiency technologies, delivering high-performance logic, discrete, and MOSFET solutions for automotive, industrial, and consumer markets.

The LSF series targets high-speed, low-power bidirectional level translation in mixed-voltage digital systems, emphasizing flexibility across voltage domains, minimal board space, and robust ESD/latch-up performance.

FAQ

What is the maximum capacitive load supported at 100 MHz translation?

The LSF0101GWH supports ≤100 MHz up-translation and ≥100 MHz down-translation specifically at ≤30 pF total capacitive load, including PCB trace, connector, and device pin capacitance. At 50 pF, maximum supported frequency reduces to ≤50 MHz for up-translation and ≥50 MHz for down-translation, as confirmed in the datasheet's Features section.

Can refA and refB be set to the same voltage?

Yes - refA and refB may be tied to identical voltages (e.g., both at 3.3 V), enabling pass-through operation with translation disabled. In this configuration, the device behaves as a low-RON bidirectional switch (typical RON = 3–4 Ω), retaining EN control and 5 V tolerance on I/O pins.

Is the LSF0101GWH compatible with I²C open-drain topology?

Yes - the LSF0101GWH natively supports open-drain buses via external pull-up resistors on A1 and B1. Its passive FET architecture automatically handles bidirectional current flow without direction control, matching I²C's wired-AND signaling and meeting standard-mode (100 kHz) and fast-mode (400 kHz) timing requirements.

Does the EN pin affect reference voltage pins?

No - the EN pin only controls the high-impedance state of A1 and B1 terminals; refA and refB remain active and functional regardless of EN state. When EN = LOW, A1 and B1 enter high-Z mode but refA/refB continue to supply their respective domain reference levels to external pull-ups or connected devices.