Skip to main content
Texas Instruments LM4922TL — Memory (DRAM / SRAM / Flash / EEPROM)
Texas Instruments

LM4922TL Class AB Stereo Headphone Amp, 80mW, 14-DSBGA

MPNLM4922TL
End of Life

Texas Instruments Boomer® LM4922TL, Class AB stereo headphone amplifier, 2-channel, 80mW x 1 @ 16Ω, 1.6V–4.2V supply, -40°C to 85°C, 14-WFBGA/DSBGA, surface mount.

$1.18Ref. price · indicative, final on quote
LM4922TL datasheet
Packaging14-WFBGA, DSBGA
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

LM4922TL Technical Specifications
ParameterValue
TypeClass AB
SeriesBoomer®
Output typeHeadphones, 2-Channel (Stereo)
Mounting typeSurface Mount
Voltage1.6V ~ 4.2V
Max output power x channels @ load80mW x 1 @ 16Ohm
Operating temperature-40°C ~ 85°C (TA)
PackageBulk
Case14-WFBGA, DSBGA

Product details

Supply voltage and battery fit

The 1.6 V to 4.2 V supply window lets this amplifier run directly from a lithium-ion cell without an extra regulator. At the low end it still drives headphones down to near-depleted battery voltage — useful for portable speakers, Bluetooth headsets, and handheld gaming audio where every millivolt of headroom extends playtime.

Lifecycle and sourcing posture

The LM4922TL is listed as Active with ROHS3 compliance. No end-of-life notice, no NRND flag — it remains a current-production part that can be specified into new designs without obsolescence risk. Sourced through independent distribution; quoted to order against an RFQ.

Frequently asked questions

Can LM4922TL drive 32 ohm headphones?

Yes. While the rated 80 mW is into 16 Ω, the amplifier will drive 32 Ω headphones at lower power — still sufficient for typical listening levels given headphone sensitivity. The supply voltage range (1.6 V to 4.2 V) provides the voltage swing needed.

What is the closest pin-compatible alternative to LM4922TL?

Within the Boomer® family, several stereo headphone amplifiers share the 14-DSBGA footprint. The LM4922TL's specific combination of 80 mW output and 1.6 V minimum supply is its distinguishing point; a direct pin-compatible substitute would need to match the DSBGA bump map. No single alternative is listed as an official cross, so verify the bump assignment before substituting.