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Texas Instruments LM4850LDX — Analog & Data Acquisition

TI LM4850LDX Boomer Class AB Audio Amp

MPNLM4850LDX
End of Life

Texas Instruments Boomer® Class AB audio amplifier, LM4850LDX, 1-Channel (Mono) with Stereo Headphones, 1.9W x 1 @ 3Ohm, 2.4V-5.5V supply, 14-WSON (4x4) exposed pad, Surface Mount.

$0.61Ref. price · indicative, final on quote
Texas Instruments LM4850LDX datasheet (PDF)
Packaging14-WFDFN Exposed Pad
RoHSRoHS non-compliant
SeriesBoomer®
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LM4850LDX specifications
ParameterValue
TypeClass AB
SeriesBoomer®
Output type1-Channel (Mono) with Stereo Headphones
MountingSurface Mount
Voltage2.4V ~ 5.5V
Max output power x channels @ load1.9W x 1 @ 3Ohm
Operating temperature-40°C ~ 85°C (TA)
PackageBulk
Case14-WFDFN Exposed Pad

Product details

1.9W mono + headphone driver — dual-zone audio architecture

The LM4850LDX is a Texas Instruments Boomer® Class AB audio amplifier delivering 1.9W x 1 @ 3Ohm into a mono speaker channel while simultaneously driving stereo headphones from the same supply rail.

14-WSON exposed-pad — thermal and layout notes

Surface-mount assembly; the 14-WSON footprint is standard for this package class, and the 0.5mm pitch is routable on a two-layer board with careful trace spacing.

Active lifecycle — RoHS non-compliant legacy finish

Marked RoHS non-compliant, the device uses a tin-lead (SnPb) finish typical of legacy audio parts. This is acceptable under many RoHS exemptions (e.g., for spare parts, military, or high-reliability assemblies) but must be verified against the buyer's own compliance policy.

Frequently asked questions

What is the output power of the LM4850LDX?

The mono channel delivers 1.9W into a 3Ω load from a 5V supply. The stereo headphone output drives typical 32Ω headphones directly without an external buffer.

What package does the LM4850LDX come in?

It is supplied in a 14-WFDFN exposed pad package, also designated 14-WSON (4x4mm).

Is the LM4850LDX RoHS compliant?

No, it is marked RoHS non-compliant, indicating a tin-lead (SnPb) finish. Verify your assembly's RoHS exemption status before specifying this part.