NXP Semiconductors NX3L4357GM,115

Overview

NX3L4357GM,115 from NXP Semiconductors is a low-ohmic single-pole triple-throw (SP3T) analog switch configured as a 3:1 multiplexer/demultiplexer with broadcast mode. It features 0.5 Ω typical ON resistance at 4.3 V supply, break-before-make switching, and operates across 1.4 V to 4.3 V supply range. It enables 1.8 V logic control of up to 4.3 V analog signals in portable audio routing applications.

For engineers reviewing the NX3L4357GM,115 datasheet, NX3L4357GM,115 pinout, NX3L4357GM,115 application, or NX3L4357GM,115 equivalent, key selection criteria include its 0.13 Ω ON-resistance flatness, −40 °C to +125 °C temperature rating, 350 mA continuous current capability, and Schmitt-trigger digital inputs tolerant of slow signal edges.

Technical Context

The NX3L4357GM,115 implements a CMOS transmission-gate architecture with dual select lines (S0/S1) and active-low enable (E), supporting four channel states including broadcast mode (Y0/Y1/Y2 all connected to Z). Its input stage uses Schmitt-trigger buffers for noise immunity and accepts overvoltage logic inputs up to 4.6 V independent of VCC.

Switching behavior is defined by a deterministic function table with guaranteed break-before-make timing (as low as 2 ns at 4.3 V), and bidirectional signal handling supports Z↔Yn paths with voltage swing up to VCC. ESD protection exceeds 6 kV (IEC61000-4-2 contact) on switch ports, enabling robust operation in handheld environments.

Key Specifications

Pinout & Package

Package: XQFN10 (SOT1049-3), plastic extremely thin quad flat package; 10-terminal, 2.0 × 1.55 × 0.5 mm body with exposed thermal pad (not electrically connected).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar analog switch applications.

Compared with TS3A4751PWR and ADG732BRUZ, the NX3L4357GM,115 uniquely combines broadcast-mode routing, sub-0.5 Ω RON at 4.3 V, and 1.4–4.3 V universal supply support-enabling smaller, more flexible analog signal management in portable and automotive edge devices.

Availability

NX3L4357GM,115 is available at Aetrix Electronics and suitable for smartphone audio routing, portable media player signal switching, and industrial sensor multiplexing requiring stable component supply across extended temperature ranges.

Supply support for NX3L4357GM,115 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

NXP Semiconductors is a global semiconductor company specializing in secure connectivity solutions for automotive, industrial, and consumer applications.

The NX3L4357GM,115 belongs to NXP's NX3L ultra-low-ohmic analog switch family, designed specifically for high-fidelity, low-power signal routing in space- and power-constrained portable electronics.

FAQ

What is the maximum analog signal voltage the NX3L4357GM,115 can switch?

The NX3L4357GM,115 supports analog signal amplitudes up to VCC on all ports (Z, Y0, Y1, Y2). With a maximum rated supply of 4.3 V, it can reliably switch signals from 0 V to 4.3 V in either direction. Absolute maximum switch voltage is VCC + 0.5 V (up to 4.6 V), but operation beyond VCC is not recommended for long-term reliability per the datasheet's recommended conditions.

Does the NX3L4357GM,115 support broadcast mode, and how is it activated?

Yes, the NX3L4357GM,115 supports broadcast mode. It is activated when both digital select inputs S0 and S1 are driven HIGH while the enable input E is LOW. In this state, the common terminal Z is simultaneously connected to Y0, Y1, and Y2 - enabling one-to-three signal distribution without additional components.

Can the NX3L4357GM,115 be controlled directly by a 1.8 V microcontroller in a 3.3 V system?

Yes. The NX3L4357GM,115 features low-threshold digital inputs compatible with 1.8 V logic levels even when VCC = 3.3 V or 3.6 V. Its VIH specification is 1.3 V (min) at VCC = 2.7–3.6 V, and input leakage remains below 1 µA - allowing direct GPIO control without level translation circuitry.

What is the thermal performance of the NX3L4357GM,115 in its XQFN10 package?

The NX3L4357GM,115 in XQFN10 (SOT1049-3) has a total power dissipation limit of 250 mW at ambient temperatures from −40 °C to +125 °C. Above 132 °C, Ptot derates linearly at 14.1 mW/K. The package's 2.0 × 1.55 mm footprint and 0.5 mm height support high-density layouts while maintaining thermal stability in thermally constrained portable designs.

How does the NX3L4357GM,115 achieve low THD in audio applications?

The NX3L4357GM,115 achieves 0.02 % THD at 20 kHz through ultra-low and flat ON resistance (0.50 Ω typical, 0.13 Ω flatness), symmetric CMOS switch design minimizing harmonic generation, and optimized charge injection (<50 pC). These characteristics preserve signal integrity across the audio band without requiring external compensation networks.