Analog Devices Inc./Maxim Integrated MAX20336AEFT+T

Overview

MAX20336AEFT+T from Maxim Integrated is a DPST (double-pole/single-throw) analog switch with 0.19Ω typical on-resistance, Beyond-the-Rails™ signal handling from −5.5V to +5.5V independent of VCCEN, and operation from a single +1.6V to +5.5V supply. It features ±30kV HBM ESD protection on analog terminals and is optimized for audio routing in space-constrained portable devices.

For engineers reviewing the MAX20336AEFT+T datasheet, MAX20336AEFT+T pinout, MAX20336AEFT+T application, or MAX20336AEFT+T equivalent, key selection criteria include its ultra-low RON flatness (0.0001Ω), THD+N of −114dB at 1VRMS, 270MHz −3dB bandwidth, and FC2QFN package compatibility with high-density PCB layouts.

Technical Context

The MAX20336AEFT+T implements a dual-channel DPST topology with independent COM1/NO1 and COM2/NO2 paths, enabling simultaneous switching of stereo audio signals or dual-signal paths without crosstalk degradation (−85dB typical). Its control logic is supply-enabled only-no separate digital control pin-so switching state is determined solely by VCCEN presence.

Beyond-the-Rails operation is achieved via internal charge-pump-assisted level-shifting circuitry that maintains low distortion across the full −5.5V to +5.5V analog range even when VCCEN = +1.6V. Thermal shutdown activates at +150°C with +25°C hysteresis, ensuring robust operation under sustained load conditions.

Key Specifications

Pinout & Package

MAX20336AEFT+T uses a 1.25mm × 1.75mm, 6-pin FC2QFN package (Package Code F61A1F+1) with wettable flanks and 0.4mm pitch. The package supports automated optical inspection (AOI) and offers θJA = 171.6°C/W on a four-layer board.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX20336ENT+T, the MAX20336AEFT+T trades package footprint for superior thermal performance and manufacturability in standard QFN reflow processes; versus TMUX1574RTER, it delivers true DPST functionality, 2.7× lower RON, and full −5.5V to +5.5V signal handling without auxiliary supplies.

Availability

MAX20336AEFT+T is available at Aetrix Electronics and suitable for smartphone audio routing, USB-C alternate mode switching, portable media player output, and wearable biometric sensor multiplexing requiring stable component supply across high-volume production cycles.

Supply support for MAX20336AEFT+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

Maxim Integrated, now part of Analog Devices, designs precision analog, mixed-signal, and power management ICs for demanding industrial, automotive, and consumer applications.

The MAX20336AEFT+T belongs to Maxim's ultra-small analog switch product line, engineered specifically for space-constrained portable electronics requiring distortion-free, rail-independent signal routing with integrated ESD hardening.

FAQ

What is the maximum analog signal voltage the MAX20336AEFT+T can handle without distortion?

The MAX20336AEFT+T supports distortion-free analog signal handling from −5.5V to +5.5V, regardless of VCCEN supply voltage (as low as +1.6V). This Beyond-the-Rails™ capability is enabled by internal charge-pump circuitry and is guaranteed over temperature. The MAX20336AEFT+T does not require external negative supplies or level shifters to pass signals outside the VCCEN–GND range.

Does the MAX20336AEFT+T require a separate digital control signal, or is switching controlled only by power?

The MAX20336AEFT+T has no dedicated digital control input like CB-it is a supply-enabled DPST switch. Switching occurs automatically when VCCEN is applied: both channels turn ON; when VCCEN = 0V, both channels enter high-impedance mode. This eliminates timing coordination overhead and simplifies GPIO-driven power sequencing in portable systems using the MAX20336AEFT+T.

Can the MAX20336AEFT+T be used in USB-C SBU line switching applications?

Yes-the MAX20336AEFT+T is qualified for USB-C SBU (Sideband Use) line switching due to its 270MHz −3dB bandwidth, ±30kV HBM ESD rating on analog pins, and ability to pass ±5.5V signals common in USB-C accessory detection. Its DPST configuration allows concurrent routing of SBU1 and SBU2 lines, and its low 0.19Ω RON minimizes insertion loss in high-speed analog sideband paths.

What is the thermal performance of the MAX20336AEFT+T in its FC2QFN package?

The MAX20336AEFT+T in the 6-pin FC2QFN package has a junction-to-ambient thermal resistance (θJA) of 171.6°C/W on a standard four-layer PCB. Its junction-to-case (θJC) is 58.7°C/W, supporting conduction cooling through the exposed pad. Maximum continuous power dissipation is 466.2mW at TA = +70°C, derating linearly above that temperature-sufficient for typical audio switching loads drawing <100mA per channel.

How does the MAX20336AEFT+T protect against ESD events during system integration?

The MAX20336AEFT+T integrates robust on-die ESD protection: ±30kV HBM on COM/NO pins, ±7kV IEC 61000-4-2 air-gap, and ±8kV contact discharge. These structures remain fully functional when the device is unpowered (VCCEN = 0V), allowing safe handling and board assembly without external protection components-reducing BOM cost and PCB area while maintaining IEC 61000-4-2 Level 4 compliance in end equipment using the MAX20336AEFT+T.