NXP Semiconductors NX3L1G384GW,125
- Part No.:
- NX3L1G384GW,125
- Manufacturer:
- NXP Semiconductors
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
NX3L1G384GW,125.pdf
- Description:
- IC SW SPST-NCX1 750MOHM 5TSSOP
- Quantity:
- Payment:

- Shipping:

Inventory:2,401
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Product details
Overview
NX3L1G384GW,125 from NXP Semiconductors is a low-ohmic single-pole single-throw (SPST) analog switch with active-low enable control, 0.5 Ω typical ON resistance at 2.7 V and 4.3 V supply, Schmitt-triggered enable input for noise immunity, and bidirectional signal routing between Y and Z terminals up to VCC amplitude - used in portable audio signal path switching.
For engineers reviewing the NX3L1G384GW,125 datasheet, NX3L1G384GW,125 pinout, NX3L1G384GW,125 application, or NX3L1G384GW,125 equivalent, key selection criteria include ON-resistance flatness (0.13 Ω), −40 °C to +125 °C operation, ESD robustness (4 kV IEC61000-4-2), and 350 mA continuous switch current handling capability.
Technical Context
The NX3L1G384GW,125 implements a CMOS transmission gate architecture with rail-to-rail analog signal support and an enable input featuring Schmitt-trigger hysteresis (typical 0.35 V at VCC = 2.3 V). Its bidirectional Y–Z path operates symmetrically with no intrinsic directionality.
Control logic is strictly level-sensitive: E = LOW enables conduction; E = HIGH forces high-impedance OFF-state with < ±500 nA leakage. Input voltage tolerance exceeds VCC (up to 4.6 V), enabling direct interface with higher-voltage logic without level shifters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ON Resistance (typ) | 0.50 Ω at VCC = 2.7 V and 4.3 V - ensures minimal insertion loss and signal distortion in audio and data paths |
| ON Resistance Flatness (typ) | 0.13 Ω at VCC = 2.7 V - maintains consistent gain/attenuation across full analog input range (0 to VCC) |
| Supply Voltage Range | 1.4 V to 4.3 V - supports single-supply operation from Li-ion battery (3.0–3.7 V) or dual-supply logic rails |
| Switch Current (cont) | ±350 mA at 3.3 V - enables driving moderate loads such as headphone amplifiers or sensor interfaces |
| ESD Robustness | 4 kV IEC61000-4-2 contact discharge on switch ports - reduces need for external protection in handheld designs |
| Operating Temperature | −40 °C to +125 °C - qualified for extended industrial and automotive cabin-adjacent environments |
| Enable Propagation Delay | 14 ns typical enable time (VCC = 3.6–4.3 V) - supports fast signal gating in real-time audio routing |
Pinout & Package
XSON6 (SOT886) package: plastic extremely thin small outline, no leads, 6-terminal, body size 1.0 × 1.45 × 0.5 mm, pin 1 indicator in lower-left corner below marking code.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Y) | Independent analog I/O | Bidirectional signal terminal - connects to source or load without polarity constraint |
| 2 (Z) | Independent analog I/O | Paired terminal with Y; forms SPST switch path when E is LOW |
| 3 (GND) | Ground reference | 0 V return for supply and signal integrity; must be low-impedance for THD < 0.02 % |
| 4 (E) | Active-low enable | Schmitt-triggered digital control input - tolerates slow edges and rejects noise spikes |
| 5 (n.c.) | No connect | Internally unconnected; must remain floating or grounded per layout guidelines |
| 6 (VCC) | Positive supply | Power rail for analog switch core and enable logic; decoupling capacitor required |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog switching | Supports signals from GND to VCC - eliminates clipping in line-level audio and sensor output routing |
| Ultra-low ON-resistance flatness | 0.13 Ω typical at 2.7 V - preserves harmonic integrity in 20 Hz–20 kHz audio paths |
| High-current capability | 350 mA continuous conduction - drives 32 Ω headphones directly without buffer stage |
| Robust ESD protection | 4 kV IEC61000-4-2 on Y/Z ports - meets IEC 61000-4-2 Level 4 for consumer handhelds |
| Wide temperature operation | Specified from −40 °C to +125 °C - supports deployment in automotive infotainment front-panel modules |
Applications
| Smartphone Audio Routing | Portable Media Player Signal Switching |
|---|---|
Use Scenario: Selecting between internal speaker, 3.5 mm jack, and Bluetooth codec outputs in space-constrained smartphone PCBs. IC Role / Device Role / Timing Role: Bidirectional SPST analog switch controlling audio path continuity under baseband processor GPIO control. Use Value: 0.5 Ω ON resistance minimizes volume loss; 0.13 Ω flatness prevents tonal coloration across full frequency band. | Use Scenario: Multiplexing stereo DAC output between headphone amplifier and line-out buffer in portable media players. IC Role / Device Role / Timing Role: Low-distortion signal gate enabling dynamic output reconfiguration during playback mode changes. Use Value: THD < 0.02 % at 2.7 V ensures fidelity retention; 350 mA rating supports direct drive of low-Z transducers. |
| PDA Touchscreen Interface Protection | Wearable Biometric Sensor Multiplexing |
Use Scenario: Isolating touchscreen controller analog inputs from ESD events during button press or stylus contact. IC Role / Device Role / Timing Role: High-isolation (−90 dB @ 100 kHz) analog switch placed between touch IC and front-panel sensors. Use Value: 4 kV IEC61000-4-2 contact ESD rating protects sensitive ADC inputs without added TVS diodes. | Use Scenario: Time-division multiplexing of photodiode, thermistor, and ECG electrode signals into shared ADC channel. IC Role / Device Role / Timing Role: Low-charge-injection (3 pC typical) analog switch minimizing transient errors during channel switching. Use Value: 3 pC charge injection at 1.5–3.3 V avoids baseline shifts in microvolt-level biopotential measurements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TS5A23157DCUR | 0.9 Ω typical RON at 3.3 V; no Schmitt trigger on enable; 1.65–5.5 V supply range | Lacks input hysteresis - requires cleaner enable signals; wider VCC supports USB-powered systems | Select when higher supply flexibility outweighs need for noise-immune enable in noisy environments |
| ADG849YKSZ-REEL7 | 0.55 Ω typical RON at 3 V; −40 °C to +125 °C; no integrated ESD beyond HBM 2 kV | Lower ESD rating (2 kV HBM only) - mandates external protection for handheld use | Choose when ultra-low RON flatness is critical and system-level ESD design accommodates external clamps |
Compared with TS5A23157DCUR and ADG849YKSZ-REEL7, the NX3L1G384GW,125 delivers superior noise immunity via Schmitt-triggered enable and higher system-level ESD robustness - reducing BOM count and layout complexity in portable consumer designs.
Availability
NX3L1G384GW,125 is available at Aetrix Electronics and suitable for smartphone audio routing, portable media player signal switching, PDA touchscreen interface protection, and wearable biometric sensor multiplexing requiring stable component supply across industrial and consumer production cycles.
Supply support for NX3L1G384GW,125 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 headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and consumer applications.
The NX3L series targets ultra-low-power, high-fidelity analog signal routing in battery-operated portable electronics - emphasizing minimal ON-resistance, rail-to-rail operation, and integrated ESD protection to reduce external component count.
FAQ
What is the maximum continuous current rating for the NX3L1G384GW,125?
The NX3L1G384GW,125 supports ±350 mA continuous current through the Y–Z switch path when supplied at 3.3 V. This rating is validated across the full operating temperature range (−40 °C to +125 °C) and enables direct interfacing with low-impedance loads such as 32 Ω headphones or sensor drivers without external buffering.
Does the NX3L1G384GW,125 support rail-to-rail analog signal switching?
Yes, the NX3L1G384GW,125 supports rail-to-rail analog signal transmission - signals from GND to VCC can pass bidirectionally between Y and Z terminals with minimal distortion. This capability is confirmed across the full 1.4 V to 4.3 V supply range and is essential for preserving dynamic range in audio and sensor applications.
What ESD protection levels does the NX3L1G384GW,125 provide on its switch terminals?
The NX3L1G384GW,125 provides 4000 V IEC61000-4-2 contact discharge ESD protection on its Y and Z switch ports. It also meets HBM Class 3A (>7500 V), MM (>200 V), and CDM (>1000 V) standards - eliminating the need for discrete ESD protection in most handheld consumer designs.
Is the enable input of the NX3L1G384GW,125 compatible with standard TTL logic levels?
Yes, the enable input (E) of the NX3L1G384GW,125 accepts TTL-compatible logic levels at 3.0 V supply: VIH ≥ 2.0 V and VIL ≤ 0.8 V. Additionally, its Schmitt-trigger action provides hysteresis (~0.35 V at VCC = 2.3 V), making it tolerant to slow-rising/falling control signals and reducing susceptibility to noise-induced switching.
What is the typical ON-resistance flatness of the NX3L1G384GW,125 and why does it matter?
The NX3L1G384GW,125 exhibits 0.13 Ω typical ON-resistance flatness at VCC = 2.7 V. Flatness is defined as the difference between maximum and minimum RON over the full input voltage range (0 to VCC). Low flatness ensures uniform signal attenuation across the entire analog swing - critical for high-fidelity audio routing where variation would cause harmonic distortion or tonal imbalance.
NX3L1G384GW,125 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- 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):
- 750mOhm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 1.4V ~ 4.3V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 24ns, 7ns
- -3db Bandwidth:
- 60MHz
- Charge Injection:
- 6pC
- Channel Capacitance (CS(off), CD(off)):
- 35pF
- Current - Leakage (IS(off)) (Max):
- 10nA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-TSSOP
NX3L1G384GW,125 FAQ
1.How can I place an order for NX3L1G384GW,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for NX3L1G384GW,125 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 NX3L1G384GW,125 reliable?
The price and inventory of NX3L1G384GW,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NX3L1G384GW,125 is usually 5 days.
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Once your NX3L1G384GW,125 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 NX3L1G384GW,125?
For technical support, including NX3L1G384GW,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NX3L1G384GW,125 requirements.
6.How does Aetrix verify that NX3L1G384GW,125 is sourced from the original manufacturer or authorized distributors?
All NX3L1G384GW,125 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 NX3L1G384GW,125 meets industry standards.
7.What is the process for return or replacement of NX3L1G384GW,125?
All NX3L1G384GW,125 units undergo pre-shipment inspection (PSI). If there is an issue with NX3L1G384GW,125, 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 NX3L1G384GW,125 part is unused and in its original packaging.
Return procedure for NX3L1G384GW,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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